PROGRAM MAIN IMPLICIT NONE C ---------------------------------------------------------------------- C NOAH LAND-SURFACE MODEL, UNCOUPLED 1-D COLUMN: VERSION 2.6 JUNE 2 2003 C C THIS MAIN PROGRAM AND ITS FAMILY OF SUBROUTINES COMPRISE VERSION 2.6 C OF THE PUBLIC RELEASE OF THE UNCOUPLED 1-D COLUMN VERSION OF THE C "NOAH" LAND-SURFACE MODEL (LSM). THE NOAH LSM IS A DESCENDANT OF AN C EARLIER GENERATION OF THE OREGON STATE UNIVERSITY (OSU) LSM, BUT IT C INCLUDES SUBSTANTIAL PHYSICS EXTENSIONS AND RECODING ACCOMPLISHED C ALONG THE WAY BY NCEP, HL (NWS), AFGWC, AND AFGL/AFPL/AFRL. HENCE C THE ACRONYM "NOAH" DENOTES N-NCEP, O-OSU, A-AIR FORCE, H-HYDRO LAB. C ---------------------------------------------------------------------- C FOR DOCUMENTATION OF THIS CODE AND INSTRUCTIONS ON ITS EXECUTION AND C INPUT/OUTPUT FILES, SEE "NOAH LSM USER'S GUIDE" IN FILE C README_2.6.tx C IN THE SAME PUBLIC SERVER DIRECTORY AS THIS SOURCE CODE. C ---------------------------------------------------------------------- C PROGRAM HISTORY LOG C VERSION 1.0 -- 01 MAR 1999 C VERSION 1.1 -- 08 MAR 1999 C VERSION 2.0 -- 27 JUL 1999 C VERSION 2.1 -- 23 OCT 2000 C VERSION 2.2 -- 07 FEB 2001 C VERSION 2.3 -- 07 MAY 2001 = operational Eta implementation C VERSION 2.4 -- 27 JUN 2001 = ops Eta with NO physics changes C VERSION 2.5 -- 18 OCT 2001 C physics changes: C in SUBROUTINE REDPRM change CSOIL_DATA from /1.26E+6/ to /2.00E+6/ C in SUBROUTINE REDPRM change ZBOT_DATA from /-3.0/ to /-8.0/ C replace de-bugged SUBROUTINE TDFCND C VERSION 2.5.1-- 05 MAR 2002 C VERSION 2.5.2-- 31 MAY 2002 C fix in SUBROUTINE REDPRM related to FRZFACT C fix in FUNCTION DEVAP related to FX calculation C VERSION 2.6 -- 02 JUN 2003 C ---------------------------------------------------------------------- CHARACTER*72 CNTRFL, FILENAME, FILENAME2 INTEGER NSOLD PARAMETER(NSOLD = 20) INTEGER ICE INTEGER IDAY INTEGER IIDAY INTEGER IMONTH INTEGER IREC1 INTEGER IREC3 INTEGER IREC5 INTEGER IRECD INTEGER NOUTDAY INTEGER NOUT1 INTEGER NOUT3 INTEGER NOUT5 CCCC......INTEGER NOUTRES INTEGER NREAD1 INTEGER NREAD2 INTEGER NRECL CCCC......INTEGER NROOT INTEGER NROOT INTEGER NRUN INTEGER NRUN2 INTEGER NSOIL INTEGER SLOPETYP INTEGER SOILTYP INTEGER IVEGTYP INTEGER ITIME INTEGER jday INTEGER ITIME_ctl INTEGER jday_ctl INTEGER jday0 INTEGER IJ INTEGER IJ1 INTEGER INDI INTEGER IBINOUT INTEGER NSPINUP INTEGER NCYCLES LOGICAL L2nd_data CCC......REAL R CCC......REAL CP CCC......PARAMETER (R = 287.04, CP = 1004.5) REAL BETA REAL DRIP REAL EC REAL EDIR REAL ET(NSOLD) REAL ETT REAL ESNOW REAL F CCC......REAL FXEXP REAL FLX1 REAL FLX2 REAL FLX3 c REAL RUNOF REAL DEW c REAL RIB REAL RUNOFF3 REAL SMSCDIF_O REAL SMSCDIF C LW REAL SIGMA REAL LATITUDE REAL LONGITUDE REAL RUNOFF2 REAL Q1 REAL AET REAL ALB REAL ALBEDO REAL CH REAL CM REAL CMC REAL CMC_bef REAL DQSDT CCCC REAL CZIL CCCC REAL REFKDT REAL DQSDT2 REAL DT C LW REAL EMISS REAL ESAT REAL ETA REAL ETA_OBS REAL ETP REAL FUP REAL GHF REAL H REAL H_OBS REAL LE REAL LWDN REAL LW_in REAL PRCP REAL PTU REAL SMCWLT REAL SMCDRY REAL SMCREF REAL SMCMAX REAL Par_in REAL Par_out REAL Q2 REAL Q2SAT REAL RES REAL RESTOT REAL RH REAL RNET REAL RUNOFF1 REAL Rg REAL SFCSPD REAL SFCPRS REAL SFCTMP REAL SHDFAC REAL SHDMIN REAL ALBEDOM (13) REAL SHDFACM (13) CCCC...REAL MLAI (13) CCCC...REAL XLAI REAL SKN_IRT REAL SMC(NSOLD) REAL STC0(NSOLD,15) REAL SMC0(NSOLD,15) REAL SH2O0(NSOLD,15) REAL CMC0(15) REAL SNOWH0(15) REAL SNEQV0(15) REAL T1_ini(15) REAL SNOMLT REAL SNOALB REAL SOILW REAL SOILM REAL SOILM_bef REAL SOLDN REAL STC(NSOLD) REAL S REAL S_OBS REAL T1 REAL T1_OBS REAL T14 REAL T1V REAL T2V C LW REAL TAK REAL TBOT REAL TH2 REAL TH2V REAL T_16 REAL T_02 REAL T_32 REAL T_04 REAL T_64 REAL T_08 REAL Z CCCC REAL Z0 REAL eddyuw REAL sm_20 REAL sm_05 REAL sm_60 REAL u_bar REAL uprim2 REAL vprim2 REAL w_dir REAL wet REAL wprim2 C REAL PCPDAY REAL PCPSUM REAL ETADAY REAL ETSUM REAL RUNOFFSUM REAL RUNOFFDAY REAL SMCMM REAL SMCDIF REAL SMCNW REAL SMC_OBS(NSOLD) REAL ETADAY_O REAL ETSUM_O REAL SMCDIF_O REAL SMCMM_O REAL SMCNW_O C REAL SH2O(NSOLD) REAL SLDPTH(NSOLD) REAL SNOWH REAL SNEQV REAL SNEQV_bef REAL LVH2O REAL SNCOVR REAL RSMIN REAL XLAI REAL RC REAL PC REAL RCS REAL RCT REAL RCQ REAL RCSOIL PARAMETER (LVH2O = 2.501000E+6) DATA SHDMIN /0.0/ C ############################################################# C MIC$ TASKCOMMON RITE C ------------------------------------------------------------- C THERE ARE 10 STEPS IN THIS MAIN PROGRAM DRIVER C C DRIVER STEP 1 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 1. READ CONTROL FILE <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C >>>>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<<<<<<<<< CNTRFL = 'controlfile_ver_2.6' C ---------------------------------------------------------------------- CALL READCNTL(CNTRFL,NCYCLES,L2nd_data,NRUN,NRUN2, & DT,NSOIL,NSOLD,Z,SLDPTH, & SOILTYP,IVEGTYP,SLOPETYP,ALBEDOM,SHDFACM,SHDMIN,SNOALB,ICE, & TBOT,T1, & STC,SMC,SH2O,CMC,SNOWH,SNEQV,FILENAME,FILENAME2, & LATITUDE, & LONGITUDE, & jday_ctl,IBINOUT, & ITIME_ctl) C Parameters check IF (NSOLD .LT. 2) THEN PRINT*,' ' PRINT*,'NSOLD MUST BE AT LEAST 2, NSOLD = ', NSOLD PRINT*,' ! ! ! ! ! ! ! ! ! ! ! ! ! ! !' stop 999 END IF IF (NSOIL .LT. 2) THEN PRINT*,' ' PRINT*,'NSOIL MUST BE AT LEAST 2, NSOIL = ', NSOIL PRINT*,' ! ! ! ! ! ! ! ! ! ! ! ! ! ! !' stop 999 END IF IF (NSOLD .LT. NSOIL) THEN PRINT*,' ' PRINT*,'NSOLD MUST BE GREATER OR EQUAL THAN NSOIL,' PRINT*,' NSOLD = ',NSOLD,' NSOIL = ',NSOIL PRINT*,' ! ! ! ! ! ! ! ! ! ! ! ! ! ! !' stop 999 END IF C END of Parameters check c debug print READCNTL output PRINT*,' ' PRINT*,'-----------------------------' PRINT*,'READCNTL output' PRINT*,'-----------------------------' PRINT*,' ALBEDOM=',ALBEDOM PRINT*,' CMC=',CMC PRINT*,' CNTRFL=',CNTRFL CCC PRINT*,'CZIL=',CZIL PRINT*,' DT=',DT PRINT*,' FILENAME=',FILENAME PRINT*,' FILENAME2=',FILENAME2 PRINT*,' L2nd_data=',L2nd_data PRINT*,' ICE=',ICE PRINT*,' IBINOUT=',IBINOUT PRINT*,' SLOPETYP=',SLOPETYP PRINT*,' SOILTYP=',SOILTYP PRINT*,'ITIME_ctl=',ITIME_ctl PRINT*,' IVEGTYP=',IVEGTYP PRINT*,' LATITUDE=',LATITUDE PRINT*,'LONGITUDE=',LONGITUDE CCC PRINT*,' MLAI=',MLAI CCC PRINT*,' NROOT=',NROOT PRINT*,' NCYCLES=',NCYCLES PRINT*,' NRUN=',NRUN PRINT*,' NRUN2=',NRUN2 PRINT*,' NSOIL=',NSOIL CCC PRINT*,' REFKDT=',REFKDT WRITE(*,*)' SH2O=',(SH2O(IJ) ,IJ=1,NSOIL) PRINT*,' SHDFACM=',SHDFACM WRITE(*,*)'SLDPTH=',(SLDPTH(IJ) ,IJ=1,NSOIL) WRITE(*,*)' SMC=',(SMC(IJ) ,IJ=1,NSOIL) PRINT*,' SNEQV=',SNEQV PRINT*,' SNOALB=',SNOALB PRINT*,' SNOWH=',SNOWH WRITE(*,*)' STC=',(STC(IJ) ,IJ=1,NSOIL) PRINT*,' T1=',T1 PRINT*,' TBOT=',TBOT PRINT*,' Z=',Z CCC PRINT*,' Z0=',Z0 PRINT*,' jday_ctl=',jday_ctl PRINT*,'-----------------------------' PRINT*,' end of READCNTL output ' PRINT*,'-----------------------------' PRINT*,' ' C DRIVER STEP 2 OPEN INPUT/OUTPUT FILES <<<<<<<<<<<<<<<<<<< C 2. OPEN INPUT/OUTPUT FILES <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C >> OPEN FILES CONTAINING ATM. STATION DATA <<<<< NREAD1=25 OPEN(NREAD1,FILE=FILENAME,STATUS='OLD') C IF YOU RUN A 2nd data file with atmospheric forcing at the end C (usually after SPIN-UP CYCLE) IF (L2nd_data) THEN NREAD2=27 OPEN(NREAD2,FILE=FILENAME2,STATUS='OLD') PRINT*,' ' PRINT*,' WILL USE ',FILENAME2 PRINT*,' AS FORCING FILE IN THE LAST RUN' DO IJ=1,10 PRINT*,' ' END DO ENDIF C C ------------------------------------------------------------ C c (IBINOUT's must be positive 1 for binary output for GrADS) c (IBINOUT's must be negative 1 for ascii output intead) C IBINOUT is set to -1 or +1 in controlfile. NOUT1 = 43*IBINOUT NOUT3 = 45*IBINOUT NOUT5 = 47*IBINOUT NOUTDAY= 49*IBINOUT C DATA WORD LENGTH (RECORD LENGTH, DEPENDS ON THE BINARY SIZE (MEANING C DEPENDENT) OF THE REAL VARIABLES TO BE WRITEN FOR GrADS) C For Single Precision, C SGI100 Linux (RedHat5.2) C f77... NRECL=1 NRECL=4 C f90... NRECL=4 NRECL=4 C HYDROLOGY IF (NOUT1 .GT. 0) THEN IREC1 = 1 OPEN(UNIT=NOUT1,FILE= & 'HYDRO.GRS', & STATUS='NEW' & ,ACCESS='DIRECT' & ,FORM='UNFORMATTED' & ,RECL=NRECL &) ELSEIF (NOUT1 .LT. 0) THEN OPEN(UNIT=-NOUT1,FILE= & 'HYDRO.TXT', & STATUS='NEW') END IF C THERMODYNAMICS IF (NOUT3 .GT. 0) THEN IREC3 = 1 OPEN(UNIT=NOUT3,FILE= & 'THERMO.GRS', & STATUS='NEW' &,ACCESS='DIRECT' &,FORM='UNFORMATTED' &,RECL=NRECL &) ELSEIF (NOUT3 .LT. 0) THEN OPEN(UNIT=-NOUT3,FILE= & 'THERMO.TXT', & STATUS='NEW') END IF C DEBUG !!!!!!!!!!!!!! DEBUG !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! C OPEN(UNIT=113,FILE='FRH2O_Newton.TXT') C DEBUG !!!!!!!!!!!!!! DEBUG !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! C OBSERVATIONAL DATA IF (NOUT5 .GT. 0) THEN IREC5 = 1 OPEN(UNIT=NOUT5, & FILE='OBS_DATA.GRS', & STATUS='NEW' &, ACCESS='DIRECT' &, FORM='UNFORMATTED' &,RECL=NRECL &) ELSEIF (NOUT5 .LT. 0) THEN OPEN(UNIT=-NOUT5, & FILE='OBS_DATA.TXT', & STATUS='NEW') END IF C DAILY ACCUMULATION VALUES IF (NOUTDAY .GT. 0) THEN IRECD = 1 OPEN(UNIT=NOUTDAY, & FILE='DAILY.GRS', & STATUS='NEW' &, ACCESS='DIRECT' &, FORM='UNFORMATTED' &,RECL=NRECL &) ELSEIF (NOUTDAY .LT. 0) THEN OPEN(UNIT=-NOUTDAY, & FILE='DAILY.TXT', & STATUS='NEW') END IF C C >>>>>>>> OPENING OUTPUT FILES FINISHED <<<<<<<<<<<<<<<<<<<<<<<<<<< C ------------------------------------------------------------ C Initialize Day number, summed sfc energy bal residual, C Phota Thermal Unit (PTU) C jday0 = -1 IIDAY = 0 RESTOT = 0.0 PTU = 0.0 C C READ FIRST RECORD OF FORCING TO CHECK THE START DATE <<<<<<<<<<<< C C >>>>>>>>> READPILPS-->READBND - Read Tilden Meyers BND data <<<<< C First initialize a few variables (only those saved in XOLD array): SFCTMP = 0. RH = 0. SFCPRS = 0. Rg = 0. LW_in = 0. PRCP = 0. SKN_IRT = 0. u_bar = 0. CALL READBND(jday, ITIME, SFCTMP, RH, SFCPRS, Rg, * Par_in, Par_out, RNET, LW_in, GHF, PRCP, wet, SKN_IRT, * T_02, T_04, T_08, T_16, T_32, T_64, sm_05, * sm_20, sm_60, w_dir, u_bar, eddyuw, * uprim2, vprim2, wprim2, H, LE, * DT,IMONTH,IDAY,NREAD1) C THIS IS FOR THE DAILY WATER BALANCE ------------------ C Initialize daily accum vars after reading control file PCPDAY = 0.0 PCPSUM = 0.0 ETADAY = 0.0 ETSUM = 0.0 ETADAY_O = 0.0 ETSUM_O = 0.0 RUNOFFSUM = 0.0 RUNOFFDAY = 0.0 SMCMM = 0.0 C ----- DO NOT INITIALIZE THIS INSIDE TIME LOOP ! ------------- C initialize variables for water balance (daily sm differences) C initial SMCMM from control file !!!!!!!!!!!!! C but only 3 layers !!!!!!!!!!!!! do ij = 1,3 SMCMM = SLDPTH(ij)*1000.*SMC(ij) + SMCMM end do C initial SOILM for 1st timestep water balance SOILM = 0.0 do ij = 1,NSOIL SOILM = SOILM + SLDPTH(ij)*SMC(ij) end do C initial OBS SMCMM same as from control file C but only 3 layers !!!!!!!!!!!!! SMCMM_O = SMCMM SMSCDIF_O = 0.0 SMCNW_O = 0.0 SMSCDIF = 0.0 SMCNW = 0.0 C THIS PART ABOVE IS FOR THE DAILY WATER BALANCE ------- C ----- DO NOT INITIALIZE THE ABOVE INSIDE TIME LOOP ! -------- C debug print READBND output PRINT*,' ' PRINT*,'------------------------------------' PRINT*,'print READBND output' PRINT*,'------------------------------------' PRINT*,' jday=',jday PRINT*,' ITIME=',ITIME PRINT*,' SFCTMP=',SFCTMP PRINT*,' RH=',RH PRINT*,' SFCPRS=',SFCPRS PRINT*,' Rg=',Rg PRINT*,' Par_in=',Par_in PRINT*,' Par_out=',Par_out PRINT*,' RNET=',RNET PRINT*,' LW_in=',LW_in PRINT*,' GHF=',GHF PRINT*,' PRCP=',PRCP PRINT*,' wet=',wet PRINT*,' SKN_IRT=',SKN_IRT PRINT*,' T_02=',T_02 PRINT*,' T_04=',T_04 PRINT*,' T_08=',T_08 PRINT*,' T_16=',T_16 PRINT*,' T_32=',T_32 PRINT*,' T_64=',T_64 PRINT*,' sm_05=',sm_05 PRINT*,' sm_20=',sm_20 PRINT*,' sm_60=',sm_60 PRINT*,' w_dir=',w_dir PRINT*,' u_bar=',u_bar PRINT*,' eddyuw=',eddyuw PRINT*,' uprim2=',uprim2 PRINT*,' vprim2=',vprim2 PRINT*,' wprim2=',wprim2 PRINT*,' H=',H PRINT*,' LE=',LE PRINT*,' IMONTH=',IMONTH PRINT*,' IDAY=',IDAY PRINT*,' NREAD1=',NREAD1 PRINT*,'------------------------------------' PRINT*,' end of printed READBND output' PRINT*,'------------------------------------' PRINT*,' ' rewind NREAD1 C CHECK DATE and time for simulation on first step IF ((ITIME_ctl .NE. ITIME) .or. (jday_ctl .NE. jday)) THEN PRINT*,'date/time specified in control file does not match & initial read from forcing data file, the program stops' PRINT*,' ' PRINT*,'Julian day in control file= ',jday_ctl PRINT*,'Julian day in forcing data file= ',jday PRINT*,' ' PRINT*,'Initial time in control file= ',ITIME_ctl PRINT*,'Initial time in forcing data file= ',ITIME stop 999 ENDIF C ---------------------------------------------------------------------| C INITIALIZE CH, CM (before time loop) CH=1.E-4 CM=1.E-4 C 1998 May 22 0030 (Julian= 142) typical values initialization C CH= 0.0150022404 C CM= 0.0205970779 C ---------------------------------------------------------------------| C START SPIN-UP LOOP | C DO NSPINUP = 1,NCYCLES C Save the initial Soil moisture C (here is the place to save initial conditions, STC,SMC,SH2O) DO IJ=1,NSOIL STC0(IJ,NSPINUP) = STC(IJ) SMC0(IJ,NSPINUP) = SMC(IJ) SH2O0(IJ,NSPINUP) = SH2O(IJ) END DO CMC0(NSPINUP) = CMC SNOWH0(NSPINUP) = SNOWH SNEQV0(NSPINUP) = SNEQV T1_ini(NSPINUP) = T1 C DRIVER STEP 3 (time step loop) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C ---------------------------------------------------------------------| C ---------------------------------------------------------------------| C | C START TIME LOOP | C | DO INDI = 1,NRUN C DRIVER STEP 4 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 4. READ FORCING DATA <<<<<<<<<<<<<<<<<<<<<<<<< C C READ THE REQUIRED ATMOSPHERIC FORCING DATA, AS WELL AS NONREQUIRED C (BUT EXTREMELY USEFUL) COMPANION SIMULTANEOUS VALIDATING FLUX-SITE C DATA FROM THE EAST-CENTRAL ILLINOIS OBSERVING FLUX SITE (JUST SOUTH C OF CHAMPAIGN IL, NEAR BONDVILLE IL) OPERATED AND MAINTAINED (WITH C SOME GEWEX/GCIP SUPPORT) BY TILDEN MEYERS OF NOAA/ARL C C THE SEVEN REQUIRED SURFACE ATMOSPHERIC FORCING VARIABLES REQUIRED BY C THIS LSM AND MOST MODERN-ERA LSMs ARE: C 1) AIR TEMPERATURE, 2) AIR HUMIDITY, 3) WIND SPEED, 4) SFC PRESSURE, C 5) DOWNWARD SOLAR RAD, 6) DOWNWARD LONGWAVE RAD, AND MOST IMPORTANTLY, C 7) PRECIPITATION C C (NOTE: FOR THE UNITS REQUIRED OF THE FORCING DATA BY THIS LSM, C SEE COMMENT BLOCK AT BEGINNING OF ROUTINE "SFLX". ROUTINE C "READBND" HERE DOES THE REQUIRED UNITS CONVERSION FOR CALL TO SFLX) C C >>>>>>>>> READPILPS-->READBND - Read Tilden Meyers BND data <<<<< CALL READBND(jday, ITIME, SFCTMP, RH, SFCPRS, Rg, * Par_in, Par_out, RNET, LW_in, GHF, PRCP, wet, SKN_IRT, * T_02, T_04, T_08, T_16, T_32, T_64, sm_05, * sm_20, sm_60, w_dir, u_bar, eddyuw, * uprim2, vprim2, wprim2, H, LE, * DT,IMONTH,IDAY,NREAD1) CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C SAVE OBSERVATIONS FOR LATER VALIDATION OUTPUT C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C Skin Temperature in Kelvin, (T1 IN SFLX) IF (SKN_IRT .GT. -273.) THEN T1_OBS = SKN_IRT + 273.15 ELSE T1_OBS = -6999. END IF C C >>>>>>>> SIGN CONVENTIONS FOR READ FLUXES <<<<<<<<<<<<<<<<<< C C S_OBS: SOIL HEAT FLUX READ FROM DATA (S IN SFLX) C (W M-2: NEGATIVE, IF DOWNWARD FROM SURFACE) S_OBS = GHF C C H_OBS: SENSIBLE HEAT FLUX READ FROM DATA (H IN SFLX) C (W M-2: NEGATIVE, IF UPWARD FROM SURFACE) H_OBS = H C C ETA_OBS: LATENT HEAT FLUX READ FROM DATA (ETA IN SFLX) C (W M-2: NEGATIVE, IF UPWARD FROM SURFACE) ETA_OBS = LE C C SMC_OBS: Soil moisture content (volumetric) FROM DATA C (just for water balance purposes) - don't have 4th layer SMC_OBS(1) = sm_05 SMC_OBS(2) = sm_20 SMC_OBS(3) = sm_60 C SMC_OBS(4) = 0.0 C C Keep the day number of the simulation IF (jday0 .NE. jday) THEN IIDAY = IIDAY + 1 jday0 = jday C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C IN A FUTURE VERSION, CONSIDER IMPLEMENTING A PHYSICAL C TIME-DEPENDENT PHENOLOGY MODEL, THAT MIGHT CALCULATE A GROWING SEASON C GROWTH-STAGE INDEX, SUCH AS PTU = PHOTO THERMAL UNIT, DEPENDENT ON C ACCUMULATIVE GROWING SEASON AIR TEMPERATURE AND RADIATION. C FOR NOW, INCREMENT PTU IN A DUMMY WAY AS A STUB PLACE HOLDER C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C PTU = PTU + 0.10 C C DRIVER STEP 5 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 5. INTERPOLATE DAILY LAND SURFACE CHARACTERISTICS FROM MONTHLY C VALUES: C C........................... monthly, daily ............ CALL MONTH_D(JDAY,ALBEDOM,ALB) CALL MONTH_D(JDAY,SHDFACM,SHDFAC) C...........CALL MONTH_D(JDAY,MLAI ,XLAI) END IF C C >>>>>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C ########################################################### C C RADIATION C The following step (OBTENTION OF LWDN) has been C commented out, given that C the current forcing data file available provides the C downward long wave radiative forcing as measured by NOAA's C SURFRAD site located within 5 Km of the flux/meteorological C measurements system site. C C OBTENTION OF LWDN <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C C COMPUTATION OF LWDN (INCOMING LW RADIATION) FROM TAIR AND Q: C C...............LWDN = EMISS*SIGMA*(TAK)^4. C C WHERE: TAK = AIR TEMP IN KELVIN C EMISS = 0.7 OR (IDSO AND JACKSON, 1969): C C EMISS = (1 - 0.261 EXP(-7.77*10^(-4)X(273-TAK)^2) C C NEED STEFAN-BOLTZMANN CONSTANT, SIGMA C SIGMA = 5.672 * 10^-8 W M^-2 T^-4 C C SIGMA = 5.672E-8 C TAK = SFCTMP C EMISS = 1 - 0.261*EXP((-7.77E-4)*(273-TAK)^2.) C C LWDN = EMISS*SIGMA*TAK^4. C ########################################################### C DRIVER STEP 6 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 6. ASSIGN DOWNWARD SOLAR AND LONGWAVE RADIATION <<<<<<<<<<<<< C Using LW_in READ FROM DATA instead of LWDN calculated LWDN = LW_in SOLDN = Rg C DRIVER STEP 7 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 7. CALCULATE A SATURATION MIX RATIO (Q2SAT) <<<<<<<<<<<<<<<< C C NEED Q2 (FROM REL.HUMID.) USE SUBROUTINE QDATAP CALL QDATAP(SFCTMP,SFCPRS,RH,Q2,Q2SAT, ESAT) IF (Q2 .LT. 0.1E-5) Q2 = 0.1E-5 IF (Q2 .GE. Q2SAT) Q2 = Q2SAT*0.99 C CALCULATE SLOPE OF SAT SPECIFIC HUMIDITY CURVE FOR PENMAN: DQSDT2 DQSDT2 = DQSDT (SFCTMP, SFCPRS) CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C CALC VIRTUAL TEMPS AND POTENTIAL TEMPS AT GRND (SUB 1) AND AT C THE 1ST MDL LVL ABV THE GRND (SUB 2). EXPON IS CP DIVD BY R. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC TH2 = SFCTMP + ( 0.0098 * Z ) T2V = SFCTMP * (1.0 + 0.61 * Q2 ) T1V = T1 * (1.0 + 0.61 * Q2 ) TH2V = TH2 * (1.0 + 0.61 * Q2 ) C C DRIVER STEP 8 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 8. CALCULATE CH (EXCHANGE COEFFICIENT) <<<<<<<<<<<<<<<<<<<<< C SFCSPD = sqrt(u*u+v*v), if individual (u,v) components provided, C but Tilden Meyers data provides wind speed as u_bar. SFCSPD = u_bar CC!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! C C IMPORTANT NOTE: TO CALCULATE THE SFC EXCHANGE COEF (CH) FOR HEAT AND C MOISTURE, SUBROUTINE SFCDIF BELOW CAN C C A) BE CALLED HERE FROM THE DRIVER, THUS CH IS INPUT TO SFLX C (AS IS TYPICAL IN A COUPLED ATMOSPHERE/LAND MODEL) OR C C B) BE CALLED INTERNALLY IN ROUTINE SFLX (THUS CH IS OUTPUT FROM SFLX), C THEREIN BETWEEN THE CALLS TO ROUTINES "REDPRM" AND "PENMAN" C C OPTION B IS THE DEFAULT HERE. THAT IS, IN THE UNCOUPLED, OFF-LINE LSM C REPRESENTED HEREIN BY THIS DRIVER, WE CALL SFCDIF LATER IN ROUTINE SFLX. C C THE ROUTINE SFCDIF REPRESENTS THE SO-CALLED "SURFACE LAYER" OR THE C "CONSTANT FLUX LAYER" (THE LOWEST 20-100 M OF THE ATMOSPHERE). C HENCE ROUTINE SFCDIF EMBODIES THE "ATMOSPHERIC AERODYNAMIC RESISTANCE". C C ONE CLASS OF USER THAT OPTION B IS INTENDED FOR IS THAT USER WHO MIGHT C WANT TO CONSTRUCT HIS/HER OWN DRIVER CODE FROM SCRATCH AND ONLY WANTS TO C WORRY ABOUT THE INPUT OF FORCING AND INITIAL STATE VARIABLES AND NOT C HAVE TO CONSIDER THE CHOICE OF THE SURFACE LAYER PHYSICS. C C TO ENABLE THE FLEXIBILITY OF EITHER OPTION A OR B, WE PASS C THE ARGUMENTS "CH", "CM", AND "SFCSPD" (WIND SPEED:JUST CALCULATED ABOVE) C TO ROUTINE SFLX TO SUPPORT OPTION B -- THAT IS, FOR INPUT TO THE CALL TO C ROUTINE SFCDIF THEREIN. IN OPTION A, THE ARGUMENTS "SFCSPD" AND "CM" C ARE NEITHER NEEDED IN ROUTINE SFLX, NOR ALTERED BY ROUTINE SFLX. C C CH IS THE SFC EXCHANGE COEFFICIENT FOR HEAT/MOISTURE C CM IS THE SFC EXCHANGE COEFFICIENT FOR MOMENTUM C C IF ONE CHOOSES OPTION A, THEN ONE MUST C 1 - ACTIVATE (UNCOMMENT) THE CALL TO SFCDIF BELOW, C 2 - ACTIVATE (UNCOMMENT) THE ASSIGNMENT OF "Z0" AND "CZIL" NEXT BELOW C 3 - DE-ACTIVATE (COMMENT OUT) THE CALL TO SFCDIF IN ROUTINE SFLX. C C Z0 = (use value set in routine REDPRM for veg class given in control file C CZIL = (use value set in routine REDPRM) C C THE ROUGHNESS LENGTH PARAMETERS "Z0" AND "CZIL" MUST BE SET HERE IN THE C DRIVER TO SUPPORT THE "OPTION-A", I.E. THE CALL TO SFCDIF BELOW. IN SO C DOING, THE "Z0" AND "CZIL" ASSIGNED HERE MUST CORRESPOND TO THEIR VALUES C NORMALLY ASSIGNED IN ROUTINE REDPRM, CALLED FROM SFLX JUST BEFORE CALL C SFCDIF. THUS THE VALUE OF "Z0" ASSIGNED HERE MUST CORRESPOND TO THAT C ASSIGNED IN ROUTINE REDPRM FOR THE CHOSEN VEG CLASS THAT WAS ALREADY C INPUT FROM THE READ OF THE CONTROL FILE EARLIER IN THIS DRIVER. C C BECAUSE OF THE IMPLICIT ITERATIVE NATURE OF THE "PAULSON" SURFACE-LAYER C SCHEME USED IN ROUTINE SFCDIF, CH AND CM ARE CO-DEPENDENT. SIMILARLY, C THE IMPLICIT NATURE OF THE SFCDIF SCHEME ALSO REQUIRES THAT FOR EITHER C OPTION A OR B, CH AND CM MUST BE INITIALIZED EARLIER IN THE DRIVER BEFORE C THE START OF THE TIME-STEP LOOP, AS WELL AS BE CARRIED FORWARD FROM C TIME STEP TO TIME STEP AS "STATE VARIABLES", BECAUSE THE VALUES OF C CH AND CM FROM A PREVIOUS TIME STEP REPRESENT THE FIRST-GUESS VALUES FOR C THE CALL TO SFCDIF IN THE PRESENT TIME STEP. C C SOME USERS MAY CHOOSE TO EXECUTE AN ENTIRELY DIFFERENT SCHEME IN PLACE OF C ROUTINE SFCDIF HERE, E.G. AN EXPLICIT SCHEME SUCH AS LOUIS (1979) THAT C EMPLOYS NO ITERATION AND HAS NO REQUIREMENT TO CARRY CH AND CM FORWARD C AS STATE VARIABLES FROM TIME STEP TO TIME STEP. IN THAT CASE, IN C OPTION A, THE ROUTINE SHOULD BE CALLED HERE IN THE DRIVER AFTER ALL C NECESSARY INPUT ARGUMENTS FOR IT ARE DEFINED AT THIS POINT, OR CALLED IN C ROUTINE SFLX, AT THE POINT SFCDIF IS CALLED. C C!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! CCC...CALL SFCDIF ( Z, Z0, T1V, TH2V, SFCSPD,CZIL, CM, CH ) C C Water balance: save total column soil moisture and water equiv snow SOILM_bef = SOILM SNEQV_bef = SNEQV CMC_bef = CMC C DRIVER STEP 9 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 9. CALL LAND-SURFACE PHYSICS <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C CALL SFLX ( C ICE,DT,Z,NSOIL,SLDPTH, F LWDN,SOLDN,SFCPRS,PRCP,SFCTMP,Q2,SFCSPD, I TH2,Q2SAT,DQSDT2, S IVEGTYP,SOILTYP,SLOPETYP,SHDFAC,SHDMIN,PTU,ALB,SNOALB,TBOT, H CMC,T1,STC,SMC,SH2O,SNOWH,SNEQV,ALBEDO,CH,CM, O ETA,H, O EC,EDIR,ET,ETT,ESNOW,DRIP,DEW, O BETA,ETP,S, O FLX1,FLX2,FLX3, O SNOMLT,SNCOVR, O RUNOFF1,RUNOFF2,RUNOFF3, O RC,PC,RSMIN,XLAI,RCS,RCT,RCQ,RCSOIL, D SOILW,SOILM,SMCWLT,SMCDRY,SMCREF,SMCMAX,NROOT) C AET = ETA C CALCULATE UPWARD LONGWAVE RAD USING UPDATED SKIN TEMPERATURE T14 = T1 * T1 * T1 * T1 FUP = 5.67E-8 * T14 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C CALCULATE RESIDUAL OF ALL SURFACE ENERGY BALANCE EQN TERMS. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC S = -S F = SOLDN*(1.0-ALBEDO) + LWDN C RES = F - H - S - AET - FUP - FLX1 - FLX2 - FLX3 RESTOT = RESTOT + RES IF ((INDI .LT. 50) .OR. (MOD(INDI,50) .EQ. 0)) THEN C Debug PRINT*,' CALCULATE RESIDUAL OF ALL SURFACE ENERGY' PRINT*,' --------------------------------------' C...PRINT*,'S=',S,' RES=',RES,' RESTOT=',RESTOT,' TIMESTEP=',INDI PRINT*,' RES=',RES,' TIMESTEP=',INDI PRINT*,' RES/(S+ETA) (in %)=',100*RES/(S+ETA),'%' ENDIF C WILL OUTPUT RESULTS ONLY IF LAST CYCLE (WITH DIFFERENT DATA FILE C OPTION ON) OR IF ONLY ONE DATAFILE IS USED. IF ((NREAD1 .EQ. NREAD2) .OR. (.NOT. L2nd_data)) THEN C ACCUMULATE DAILY VALUES IN mm FOR WATER BALANCE PCPSUM = PCPSUM + PRCP*DT ETSUM = ETSUM + ETA*DT/LVH2O ETSUM_O = ETSUM_O + ETA_OBS*DT/LVH2O RUNOFFSUM = RUNOFFSUM + RUNOFF1*DT*1000. + RUNOFF2*DT*1000. IF (ITIME .EQ. 0) THEN C Remember to initialize SMCMM, SMCDIF... after reading controlfile. C Suffix "_O" stands for OBSERVED quantities. SMCNW = 0.0 SMCNW_O =0.0 do ij = 1,3 SMCNW = SLDPTH(ij)*1000.*SMC(ij) + SMCNW SMCNW_O = SLDPTH(ij)*1000.*SMC_OBS(ij) + SMCNW_O end do SMCDIF = SMCNW - SMCMM SMCMM = SMCNW SMCDIF_O = SMCNW_O - SMCMM_O SMCMM_O = SMCNW_O RUNOFFDAY = RUNOFFSUM PCPDAY = PCPSUM ETADAY = -ETSUM ETADAY_O = -ETSUM_O PCPSUM = 0.0 ETSUM = 0.0 ETSUM_O = 0.0 RUNOFFSUM = 0.0 C C DRIVER STEP 10 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< C 10. Write to model output files C EXTENSION .GRS FILES - GrADS-readable format output (unformatted) C EXTENSION .TXT FILES - ASCII formatted. C C WRITE DAILY ACCUMULATION VARIABLES, DAILY.GRS, GrADS FORMAT C or DAILY.TXT, ASCII formatted C CALL PRTDAILY(NOUTDAY,jday, & IIDAY,ITIME,ETADAY,ETADAY_O, & PCPDAY,SMCDIF,SMCDIF_O,RUNOFFDAY, & IRECD) ENDIF C C WRITE VARIABLES IN WATER AMOUNT UNITS (HYDRO.GRS or .TXT) C CALL PRTHYDF(INDI,NOUT1,NSOIL,jday, & IIDAY,ITIME,ETA, & ETP,PRCP,SH2O,SMC,ALBEDO,ALB,SNOALB, & SNEQV, SNEQV_bef, SNOMLT, SNOWH, SOILM, SOILM_bef, SOILW, & RUNOFF1, RUNOFF2, RUNOFF3, & DT,EDIR,EC,ETT,CMC,CMC_bef,IREC1,DEW) C C WRITE VARIABLES IN THERMODYNAMIC ENERGY UNITS (THERMO.GRS or .TXT) C CALL PRTHMF(INDI,NOUT3,NSOIL,jday, & IIDAY,ITIME,CH,CM,Z,F,S,CMC, & SMCMAX,SFCTMP,T1,Q1,SFCPRS, & SFCSPD,ETA,ETP,STC, & DT,H,AET,RES,IREC3, & FLX1,FLX2,FLX3) C C WRITE ATMOSPHERIC INPUT FORCING DATA AND INDEPENDENT VALIDATION DATA C IN FILE (BND_DATA.GRS or .TXT) C CALL PRTBND(INDI, NOUT5, jday, & IIDAY, ITIME, SFCTMP, Q2, SFCPRS, Rg, * LW_in, Par_in, Par_out, RNET, S_OBS, PRCP, wet, T1_OBS, * T_02, T_04, T_08, T_16, T_32, T_64, * sm_05, sm_20, sm_60, w_dir, u_bar, eddyuw, * uprim2, vprim2, wprim2, H_OBS, ETA_OBS, * IMONTH, IDAY, IREC5) ENDIF C C ============================================================= END DO C | C END OF TIME LOOP | C | C ---------------------------------------------------------------------| C ---------------------------------------------------------------------| C Debug PRINT*,' CALCULATE RESIDUAL OF ALL SURFACE ENERGY' PRINT*,' --------------------------------------' C...PRINT*,'S=',S,' RES=',RES,' RESTOT=',RESTOT,' TIMESTEP=',INDI PRINT*,'SUM OF ALL TIMESTEPS ENERGY RESIDUAL=',RESTOT, &' TIMESTEPS=',INDI*NSPINUP PRINT*,' SPIN-UP CYCLE ',NSPINUP,' of ',NCYCLES PRINT*,' AVG RES PER TIMESTEP =',RESTOT/(INDI*NSPINUP) PRINT*,' --------------------------------------' PRINT*,' ' C Reset forcing data for next cycle, if any. rewind NREAD1 C IF "FINAL RUN WITH DIFFERENT FORCING DATA" SELECTED, SWITCH NREAD1 C TO POINT TOWARDS THIS FILE AND RUN A NUMBER OF SIMULATION TIMESTEPS IF (L2nd_data .AND. (NSPINUP .EQ. NCYCLES-1)) then NREAD1=NREAD2 NRUN=NRUN2 ENDIF END DO C END OF SPIN-UP CYCLE LOOP C ---------------------------------------------------------------------| C ---------------------------------------------------------------------| IF (NCYCLES .GT. 1) THEN PRINT*,' ' PRINT*,' Initial Soil Moisture Change Due to each Spin-Up cycle:' PRINT*,' ' ENDIF C----------------------------------------------------------------------- DO NSPINUP=1,NCYCLES C----------------------------------------------------------------------- IF (NSPINUP .LT. NCYCLES) THEN PRINT*,' ' PRINT*,' LAYER Run Next Diff SMC-SMC0' DO IJ=1,NSOIL PRINT*,IJ,SMC0(IJ,NSPINUP),SMC0(IJ,NSPINUP+1),( & SMC0(IJ,NSPINUP+1)-SMC0(IJ,NSPINUP)) END DO ENDIF C----------------------------------------------------------------------- PRINT*,' ' PRINT*,' --------------------------------------' PRINT*,' This cycle initial conditions:' PRINT*,' ' WRITE(*,*) T1_ini(NSPINUP), &' T1........Initial skin temperature (K)' WRITE(*,*)(STC0(IJ,NSPINUP), IJ=1,NSOIL),'STC' WRITE(*,*)(SMC0(IJ,NSPINUP), IJ=1,NSOIL),'SMC' WRITE(*,*)(SH2O0(IJ,NSPINUP), IJ=1,NSOIL),'SH2O' WRITE(*,*) CMC0(NSPINUP), &' CMC.......Initial canopy water content (m)' WRITE(*,*) SNOWH0(NSPINUP), &' SNOWH.....Initial actual snow depth (m)' WRITE(*,*) SNEQV0(NSPINUP), &' SNEQV.....Initial water equiv snow depth (m)' PRINT*,' --------------------------------------' END DO CCC PRINT*,' ^ ^ ^ ^ ^ ^ ' PRINT*,' --- Above are the last initial conditions used ---' PRINT*,' --------------------------------------------------------' PRINT*,' ' PRINT*,' ' PRINT*,' --------------------------------------------------------' PRINT*,' Difference in initial SMC to be obtained if running ' PRINT*,' another cycle:' PRINT*,' LAYER This run Next Diff SMC-SMC0' DO IJ=1,NSOIL PRINT*,IJ,SMC0(IJ,NCYCLES),SMC(IJ),( & SMC(IJ)-SMC0(IJ,NCYCLES)) END DO PRINT*,' ' PRINT*,' --------------------------------------' PRINT*,' State Variables at the end' PRINT*,' --------------------------------------' C PRINT*,'Final date: ' PRINT*,'Julian=',JDAY,' MONTH=',IMONTH,' DAY=',IDAY, &' TIME(hhmm)=',ITIME PRINT*,' --------------------------------------' WRITE(*,*) T1,' T1........Skin temperature (K)' WRITE(*,*)(STC(IJ1), IJ1=1,NSOIL),' STC' WRITE(*,*)(SMC(IJ1), IJ1=1,NSOIL),' SMC' WRITE(*,*)(SH2O(IJ1), IJ1=1,NSOIL),' SH2O' WRITE(*,*) CMC,' CMC.......Canopy water content (m)' WRITE(*,*) SNOWH,' SNOWH.....Actual snow depth (m)' WRITE(*,*) SNEQV,' SNEQV.....Water equiv snow depth (m)' WRITE(*,*) 'CH=',CH,' CM=',CM PRINT*,' --------------------------------------' C PRINT*,' ' PRINT*,' Do not confuse this with the initial conditions' PRINT*,' used for the last run (further above).' PRINT*,' This data is useful for initializing continuation runs' PRINT*,' (if you stop, say, 1998May220030, you can use this' PRINT*,' to initialize from this date/time)' PRINT*,' ' C Close open files IF (NOUT1 .GT. 0) THEN CLOSE(NOUT1) ELSEIF (NOUT1 .LT. 0) THEN CLOSE(-NOUT1) END IF IF (NOUT3 .GT. 0) THEN CLOSE(NOUT3) ELSEIF (NOUT3 .LT. 0) THEN CLOSE(-NOUT3) END IF IF (NOUT5 .GT. 0) THEN CLOSE(NOUT5) ELSEIF (NOUT5 .LT. 0) THEN CLOSE(-NOUT5) END IF IF (NOUTDAY .GT. 0) THEN CLOSE(NOUTDAY) ELSEIF (NOUTDAY .LT. 0) THEN CLOSE(-NOUTDAY) END IF IF (L2nd_data) THEN CLOSE(NREAD2 ) ENDIF CLOSE(NREAD1 ) STOP 0 C END OF DRIVER PROGRAM ---------------------------------------------- END FUNCTION DQS (T) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC PURPOSE: TO CALCULATE VALUES OF VAPOR PRESSURE (E) CC AND P * DQS/DT (P TIMES CHG IN SAT MXG RATIO WITH RESPECT CC TO THE CHG IN TEMP) IN SUBSTITUTION TO THE LOOK-UP TABLES. CC CC SUBSTITUTES LOOK-UP TABLES ASSOCIATED WITH THE DATA CC BLOCK /CHMXR/ . CC CC FORMULAS AND CONSTANTS FROM ROGERS AND YAU, 1989. CC CC ADDED BY PABLO J. GRUNMANN, 6/30/97. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C REAL DESDT REAL DQS CK REAL ESD REAL LW REAL T REAL ES C CK REAL CP CK REAL CV CK REAL CVV REAL CPV REAL RV REAL CW REAL EPS REAL ESO REAL TO REAL LVH2O PARAMETER (LVH2O = 2.501000E+6) C CK PARAMETER (CP = 1005.) CK PARAMETER (CV = 718.) CK PARAMETER (CVV = 1410.) PARAMETER (CPV = 1870.) PARAMETER (RV = 461.5) PARAMETER ( CW = 4187.) PARAMETER (EPS = 0.622) PARAMETER (ESO = 611.2) PARAMETER ( TO = 273.15) C C ABOUT THE PARAMETERS: C C EPS ---------- WATER - DRY AIR MOLECULAR MASS RATIO, EPSILON C C VALUES FOR SPECIFIC HEAT CAPACITY AND INDIVIDUAL GAS CONSTANTS C IN [JOULES/(KG*KELVIN)] UNITS. C C DRY AIR: C CP, CV C WATER VAPOR: C CVV = 1410. C CPV = 1870. C RV = 461.5 C LIQUID WATER: C CW = 4187. C C ESO = ES(T=273.15 K) = SAT. VAPOR PRESSURE (IN PASCAL) AT T=TO C TO = 273.15 C C SAT. MIXING RATIO: QS ~= EPS*ES/P C CLAUSIUS-CLAPEYRON: DES/DT = L*ES/(RV*T^2) C @QS/@T = (EPS/P)*DES/DT C LW = LVH2O - ( CW - CPV ) * ( T - TO ) ES = ESO*EXP (LW*(1/TO - 1/T)/RV) DESDT = LW*ES/(RV*T*T) C C FOR INSERTION IN DQSDT FUNCTION: C DQSDT = DQS/P , WHERE DQS = EPS*DESDT C DQS = EPS*DESDT C RETURN END FUNCTION DQSDT ( SFCTMP, SFCPRS ) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC PURPOSE: TO RETRIEVE THE APPROPRIATE VALUE OF DQSDT (THE CHANGE CC ======= OF THE SATURATION MIXING RATIO WITH RESPECT TO THE CC CHANGE IN TEMPERATURE) FROM: CC CC FORMULAS INTRODUCED IN NEW FUNCTION DQS CC (MODIFIED BY PABLO GRUNMANN, 7/9/97). CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC REAL SFCTMP REAL SFCPRS REAL DQS REAL DQSDT IF ((SFCTMP .GE. 173.0) .AND. (SFCTMP .LE. 373.0)) THEN CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C IF THE INPUT SFC AIR TEMP IS BTWN 173 K AND 373 K, USE C FUNCTION DQS TO DETERMINE THE SLOPE OF SAT.MIX RATIO FUNCTION C -ADAPTED TO USE NEW DQS, 7/9/97. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC DQSDT = DQS (SFCTMP) / SFCPRS ELSE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C OTHERWISE, SET DQSDT EQUAL TO ZERO CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC DQSDT = 0.0 END IF RETURN END FUNCTION E (T) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC PURPOSE: TO CALCULATE VALUES OF SAT. VAPOR PRESSURE (E) CC SUBSTITUTES LOOK-UP TABLES ASSOCIATED WITH THE DATA CC BLOCK /VAPPRS/ . CC FORMULAS AND CONSTANTS FROM ROGERS AND YAU, 1989. CC CC ADDED BY PABLO J. GRUNMANN, 7/9/97. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C REAL LW REAL T REAL E C CK REAL EPS CK REAL CP CK REAL CV CK REAL CVV REAL CPV REAL RV REAL CW REAL ESO REAL TO REAL LVH2O PARAMETER (LVH2O = 2.501000E+6) C CK PARAMETER (EPS = 0.622) CK PARAMETER (CP = 1005.) CK PARAMETER (CV = 718.) CK PARAMETER (CVV = 1410.) PARAMETER (CPV = 1870.) PARAMETER (RV = 461.5) PARAMETER (CW = 4187.) PARAMETER (ESO = 611.2) PARAMETER (TO = 273.15) C C ABOUT THE PARAMETERS: C C EPS ---------- WATER - DRY AIR MOLECULAR MASS RATIO, EPSILON C C VALUES FOR SPECIFIC HEAT CAPACITY AND INDIVIDUAL GAS CONSTANTS C IN [JOULES/(KG*KELVIN)] UNITS. C C DRY AIR: C CP, CV C WATER VAPOR: C CVV = 1410. C CPV = 1870. C RV = 461.5 C LIQUID WATER: C CW = 4187. C C ESO = ES(TO) = SAT. VAPOR PRESSURE (IN PASCAL) AT T=TO C TO = 273.15 C_______________________________________________________________________ C C CLAUSIUS-CLAPEYRON: DES/DT = L*ES/(RV*T^2) C C LW = LVH2O - ( CW - CPV ) * ( T - TO ) E = ESO*EXP (LW*(1/TO - 1/T)/RV) C RETURN END SUBROUTINE JULDATE(JULD,IMONTH,IDAY,JULM) IMPLICIT NONE CC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CC NAME: JULIAN DAYS TO MM/DD DATE CC CC CC PURPOSE: TO CONVERT FROM JULIAN DAY NUMBER OF THE YEAR TO CC CALENDAR DATE (MONTH, DAY). CC PABLO J. GRUNMANN, 05/98 CC CC VARIABLES: CC ========= CC CC LABEL ............DESCRIPTION............... CC CC IDMONTH(IM) NUMBER OF DAYS IN MONTH NUMBER "IM", FOR IM=1,12 CC JULD JULIAN DAY CC ILDM,ILDMP JULIAN DAY OF THE LAST DAY OF A PARTICULAR CC MONTH AND ITS CONSECUTIVE (ILDMP). CC IMONTH,IDAY MONTH, DAY - CALENDAR DATE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C INTEGER IM INTEGER IDMONTH(12) INTEGER JULM(13) INTEGER JULD INTEGER IDAY INTEGER ILDM INTEGER ILDMP INTEGER IMONTH C................................................................. C DEFINE LAST DAY OF FEBRUARY AND MODIFY DATA IDMONTH C IF NECESSARY: C FEB 28 C FEB 29 (LEAP YEAR) C..................JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG.SEP,OCT,NOV,DEC DATA IDMONTH/31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31/ C DATA JULM/0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, C & 334, 365/ C................................................................. ILDMP = 0 IMONTH = 0 C Print*,JULM JULM(1)= 0 DO IM = 1,12 JULM(IM+1) = JULM(IM) + IDMONTH(IM) ILDM = JULM(IM) ILDMP = JULM(IM+1) IF ((JULD .LE. ILDMP) .AND. (JULD .GT. ILDM)) THEN IMONTH = IM IDAY = JULD - JULM(IM) ENDIF END DO RETURN END SUBROUTINE MONTH_D(JDAY,XMON,XDAY) IMPLICIT NONE C INTERPOLATE TO DAY OF YEAR. C THE MONTHLY FIELDS ASSUMED VALID AT 15TH OF MONTH. C C READ FROM A FILE THAT HAS 13 RECORDS, ONE PER MONTH WITH C JANUARY OCCURRING BOTH AS RECORD 1 AND AGAIN AS RECORD 13, C THE LATTER TO SIMPLIFY TIME INTERPOLATION FOR DAYS C BETWEEN DEC 16 AND JAN 15. WE TREAT JAN 1 TO JAN 15 C AS JULIAN DAYS 366 TO 380 BELOW, I.E WRAP AROUND YEAR. C C BASED ON SUBROUTINE CNSTS.f WHICH C INCLUDED REVISION BY F. CHEN 7/96 TO REFLECT A NEW NESDIS C VEGETATION FRACTION PRODUCT (FIVE-YEAR CLIMATOLOGY WITH C 0.144 DEGREE RESOLUTION FROM 89.928S, 180W TO 89.928N, 180E) C C This is PABLO J. GRUNMANN's version for use with the uncoupled, C column mode Land-Surface Model C C DATA JULM/0,31,59,90,120,151,181,212,243,273,304,334,365/ C.......getting JULM from subroutine JULDATE to enable easy C.......one number adjustment in case of leap year. C C #### DO TIME INTERPOLATION #### C INTEGER IDAY INTEGER IMON1 INTEGER IMON2 INTEGER IMONTH INTEGER JDAY INTEGER JULD INTEGER JULM(13) REAL DAY1 REAL DAY2 REAL RDAY REAL WGHT1 REAL WGHT2 REAL XDAY REAL XMON(13) JULD = JDAY CALL JULDATE(JULD,IMONTH,IDAY,JULM) IF(JULD.LE.15) JULD=JULD+365 IMON2=IMONTH IF (IDAY .GT. 15) IMON2 = IMON2 + 1 IF (IMON2 .EQ. 1) IMON2 = 13 IMON1 = IMON2 - 1 C #### ASSUME DATA VALID AT 15TH OF MONTH DAY2 = REAL(JULM(IMON2)+15) DAY1 = REAL(JULM(IMON1)+15) RDAY = REAL(JULD) WGHT1 = (DAY2-RDAY)/(DAY2-DAY1) WGHT2 = (RDAY-DAY1)/(DAY2-DAY1) C XDAY=WGHT1*XMON(IMON1)+WGHT2*XMON(IMON2) RETURN END SUBROUTINE PRTBND(INDI, NOUT, jday, & IIDAY, IITIME, SFCTMP, Q2, SFCPRS, Rg, * LW_in, Par_in, Par_out, rnet, & S_OBS, PRCP, wet, T1_OBS, * T_02, T_04, T_08, T_16, T_32, T_64, * sm_05, sm_20, sm_60, w_dir, u_bar, eddyuw, * uprim2, vprim2, wprim2, H_OBS, ETA_OBS, * IMONTH, IDAY, IREC) CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C From MAIN: C CALL PRTBND(INDI,NOUT5,jday, C & IIDAY, ITIME, SFCTMP, Q2, SFCPRS, Rg, C * LW_in, Par_in, Par_out, RNET, C & S_OBS, PRCP, wet, T1_OBS, C * T_02, T_04, T_08, T_16, T_32, T_64, C * sm_05, sm_20, sm_60, w_dir, u_bar, eddyuw, C * uprim2, vprim2, wprim2, H_OBS, ETA_OBS, C * IMONTH, IDAY, IREC5) CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CC NAME: PRINT BONDVILLE, IL (BND_) DATA: CC CC PURPOSE: TO WRITE OUT OBSERVATIONAL DATA THAT CAN BE CC ======= USED FOR VALIDATION. CC CC VARIABLES: CC ========= C OBSERVED SFLX STATE VARIABLES C C (T1_OBS) T1: SKIN (GRND SFC) TEMPERATURE (K) C (sm_XXcm) SMC(3 layers): SOIL MOISTURE CONTENT (VOLUMETRIC FRACTION) C FOR LAYER CENTERED AT XX cm DEPTH. C (STC_OBS) STC(3 layers): SOIL TEMP (K) C C OBSERVED SFLX OUTPUT C C (ETA_OBS) ETA: ACTUAL LATENT HEAT FLUX (W M-2: NEGATIVE, IF UPWARD FROM SURFACE) C (H_OBS) H: SENSIBLE HEAT FLUX (W M-2: NEGATIVE, IF UPWARD FROM SURFACE) C (S_OBS) S: SOIL HEAT FLUX (W M-2: NEGATIVE, IF DOWNWARD FROM SURFACE) C Q1: EFFECTIVE MIXING RATIO AT GRND SFC ( KG KG-1) C CC ORIGINAL BND_ DATA VARIABLE NAMES C C jday Julian Day C time LST, half hour ending (using IITIME) C Ta air temperature (C), at 3 m C RH relative humidity (%) at 3 m C (converted to specific humidity Q2) C Pres surface pressure in mb C Rg incoming short wave radiation (W/m2) C Par_in incoming visible radiation (0.4-0.7 um) in uE/m2/s C Par_out outgoing or reflected visible light C Rnet net radiation (W/m2) C GHF (as S_OBS) soil or ground heat flux (W/m2) C C RAIN total rain for half hour (inches) C PRCP precipitation rate conversion (Kg m-2 s-1) C wet wetness sensor (volts), high values indicate wetness. C IRT (as T1_OBS) surface or skin temp (CONVERTED TO K) C T_02 soil temp at 2 cm (C) C T_04 soil tmep at 4 cm C T_08 soil temp at 8 cm C T_16 soil temp at 16 cm C T_32 soil temp at 32 cm C T_64 soil temp at 64 cm c C STC5 linear interpolations, using the soil C STC20 temperatures above, to match the model C STC60 depths (5,20 and 60 cm). C C sm_05 soil volumetric water content at 5 cm zone C sm_20 soil volumetric water content at 20 cm zone C sm_60 soil volumetric water content at 60 cm zone C (as SMC_OBS(3 layers)) C C w_dir wind direction C u_bar average wind vector speed (m/s), at 6m C eddyuw (u'w') kinematic shear stress (m2/s2) C uprim2 (u'2) streamwise velocity variance (m2/s2) C vprim2 (v'2) crosswind velocity variance (m2/s2) C wprim2 (w'2) vertical velocity variance (m2/s2) C H (as H_OBS) sensible heat flux (W/m2) C C LE (as ETA_OBS) latent heat flux (W/m2) CC The eddy covariance sensors are located at 6 m AGL CC The bulk density of the soil is 1.4 gm/cm3 CC The site is currently in corn stubble (like it would look CC after combining) CC CC The units uE/m2/s refer to micro Einsteins per square meter per CC second. A uE is 6.02 x 10 (17) photons. CC______________________________________________________________________ IMPLICIT NONE REAL T0 PARAMETER (T0=273.15) INTEGER INDI, NOUT, NASCII, IREC INTEGER IIDAY, IITIME INTEGER IMONTH, IDAY, jday REAL Q2 REAL SFCPRS REAL SDATE REAL DDTIME REAL Rg REAL LW_in REAL Par_in REAL Par_out REAL Rnet REAL S_OBS REAL PRCP REAL wet REAL T1_OBS REAL T_02 REAL T_04 REAL T_08 REAL T_16 REAL T_32 REAL T_64 REAL STC5 REAL STC20 REAL STC60 REAL sm_05 REAL sm_20 REAL sm_60 REAL w_dir REAL u_bar REAL eddyuw REAL uprim2 REAL vprim2 REAL wprim2 REAL H_OBS REAL ETA_OBS REAL RMONTH REAL RIDAY REAL SFCTMP C ____________________________________________________________ C C For now, print soil temperature observations as they are, C T_02, T_04, T_08, T_16, T_32 and T_64. C C In the future, may use a cubic spline or C a simple linear scheme to interpolate C to STC_OBS( 5cm ), STC_OBS( 20cm ) and STC_OBS( 60cm ). C ____________________________________________________________ C C DATA CONVERSIONS TO MATCH MODEL'S VARIABLES C Soil Temperature in K T_02 = T_02 + T0 T_04 = T_04 + T0 T_08 = T_08 + T0 T_16 = T_16 + T0 T_32 = T_32 + T0 T_64 = T_64 + T0 C SOIL TEMPERATURE AT SOIL MOISTURE MEASUREMENT C LEVELS (LINEAR INTERP) STC5 = T_04 + (T_08 - T_04)/4. STC20 = T_16 + 4*(T_32 - T_16)/16. STC60 = T_64 + 4*(T_32 - T_64)/32. C ____________________________________________________________ C C ##### WRITE UNFORMATTED FOR GRADS OUTPUT ######## C IF (NOUT .GT. 0) THEN c convert to REAL for binary output SDATE = FLOAT(IIDAY) DDTIME = FLOAT(IITIME) RMONTH = FLOAT(IMONTH) RIDAY = FLOAT(IDAY ) WRITE(NOUT,REC=IREC) SDATE IREC = IREC + 1 WRITE(NOUT,REC=IREC) DDTIME IREC = IREC + 1 WRITE(NOUT,REC=IREC) SFCTMP IREC = IREC + 1 WRITE(NOUT,REC=IREC) Q2 IREC = IREC + 1 WRITE(NOUT,REC=IREC) SFCPRS IREC = IREC + 1 WRITE(NOUT,REC=IREC) Rg IREC = IREC + 1 WRITE(NOUT,REC=IREC) LW_in IREC = IREC + 1 WRITE(NOUT,REC=IREC) Par_in IREC = IREC + 1 WRITE(NOUT,REC=IREC) Par_out IREC = IREC + 1 WRITE(NOUT,REC=IREC) rnet IREC = IREC + 1 WRITE(NOUT,REC=IREC) S_OBS IREC = IREC + 1 WRITE(NOUT,REC=IREC) PRCP IREC = IREC + 1 WRITE(NOUT,REC=IREC) wet IREC = IREC + 1 WRITE(NOUT,REC=IREC) T1_OBS IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_02 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_04 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_08 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_16 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_32 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T_64 IREC = IREC + 1 C WRITE(NOUT,REC=IREC) STC5 IREC = IREC + 1 WRITE(NOUT,REC=IREC) STC20 IREC = IREC + 1 WRITE(NOUT,REC=IREC) STC60 IREC = IREC + 1 C WRITE(NOUT,REC=IREC) sm_05 IREC = IREC + 1 WRITE(NOUT,REC=IREC) sm_20 IREC = IREC + 1 WRITE(NOUT,REC=IREC) sm_60 IREC = IREC + 1 WRITE(NOUT,REC=IREC) w_dir IREC = IREC + 1 WRITE(NOUT,REC=IREC) u_bar IREC = IREC + 1 WRITE(NOUT,REC=IREC) eddyuw IREC = IREC + 1 WRITE(NOUT,REC=IREC) uprim2 IREC = IREC + 1 WRITE(NOUT,REC=IREC) vprim2 IREC = IREC + 1 WRITE(NOUT,REC=IREC) wprim2 IREC = IREC + 1 WRITE(NOUT,REC=IREC) H_OBS IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETA_OBS IREC = IREC + 1 WRITE(NOUT,REC=IREC) RMONTH IREC = IREC + 1 WRITE(NOUT,REC=IREC) RIDAY IREC = IREC + 1 ELSEIF (NOUT .LT. 0) THEN NASCII = -NOUT WRITE(NASCII,200) jday, IITIME, SFCTMP, Q2, & SFCPRS, Rg, LW_in, Par_in, Par_out, & rnet, S_OBS, PRCP, wet, T1_OBS, & T_02, T_04, T_08, T_16, T_32, T_64, & STC5, STC20, STC60, sm_05, sm_20, sm_60, & w_dir, u_bar, eddyuw, uprim2, vprim2, wprim2, & H_OBS, ETA_OBS, IMONTH, IDAY END IF 200 FORMAT(2(I6,1X),32(F15.4,1X),2(I6,1X)) RETURN END SUBROUTINE PRTDAILY(NOUT,jday, & IIDAY,ITIME,ETADAY,ETADAY_O, & PCPDAY,SMCDIF,SMCDIF_O,RUNOFFDAY, & IREC) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CC NAME: PRINT DAILY ACCUMULATED HYDROLOGICAL VARIABLES CC CC VARIABLES: CC ========= CC CC LABEL I/O TYPE ............DESCRIPTION............... CC CC AET LOC RS ACTUAL EVAPOTRANSPIRATIVE ENERGY CC (J M-2 S-1) CC AET2 LOC RS ACTUAL EVAPOTRANSPIRATION (MM) CC CH IOC RS DRAG COEF FOR HEAT/MOISTURE CC CM IOC RS DRAG COEFFICIENT FOR MOMENTUM CC CMC IOC RS CANOPY MOISTURE CONTENT (M) CC DEW IB RS DEWFALL AMOUNT (M S-1) CC DRIP IB RS EXCESS CANOPY MOISTURE (M) CC EC(EC1) IB RS CANOPY EVAPORATION (M S-1) CC EDIR(EDIR1)IB RS DIRECT SOIL EVAPORATION (M S-1) CC ETA IOC RA FINAL ACTUAL EVAPOTRANSP (KG M-2 S-1) CC ETAS IOC RA FINAL ACTUAL EVAPOTRANSP (MM) CC ETP IOC RA FINAL POTNTL EVAPOTRANSP (KG M-2 S-1) CC ETPS IOC RA FINAL POTNTL EVAPOTRANSP (MM) CC ETT(ETT1) IB RS ACCUM PLANT TRANSPIRATION (M S-1) CC F IOC RS NET FLUX (TOT DOWNWARD RADIATION) CC FLX1 IB RS 1ST FLUX VALUE (W M-2) CC FLX2 IB RS 2ND FLUX VALUE (W M-2) CC FLX3 IB RS 3RD FLUX VALUE (W M-2) CC FOG IC LS INTERMEDIATE HRLY FOG FLAG CC FUP IB RS UPWARD GRND LW RADIATION (W M-2) CC H LOC RS SENSIBLE HEAT FLUX (W M-2) CC HEAT LOC RS SENSIBLE HEAT FLUX SUB-PRODUCT CC HEMI IC IS CURRENT HEMISPHERE (1=N, 2=S) CC I IC IS 1/8 MESH I COORDINATE CC ICLAMT IC IA INTERMEDIATE HRLY CLD AMOUNT CC ICLTYP IC IA INTERMEDIATE HRLY CLD TYPE CC J IC IS 1/8 MESH J COORDINATE CC K LOC IS LOOP INDEX CC NSOIL IC IS SOIL LAYER NUMBER CC PET LOC RS POTENTIAL EVAPOTRANSPIRATION (MM) CC PRCP IOC RA HALF HOURLY PRECIP AMT (KG M-2 S-1) CC Q2 IOC RS MIXING RATIO AT 1ST MDL LVL ABV SKIN CC Q2SAT IOC RS SAT MXNG RATIO AT 1ST MDL LVL ABV SKIN CC RES LOC RS ENERGY BALANCE EQN RESIDUAL (W M-2) CC RIB IB RS BULK RICHARDSON NUMBER CC RLDOWN IC RS DOWNWARD LONGWAVE RADIATION (W M-2) CC RR LOC RS SENSIBLE HEAT SUB-PRODUCT CC RSOLIN IC RS SOLAR RADIATION (W M-2) CC RUNOFF1 IB RS GRND SFC RUNOFF (M ) CC RUNOFF2 IB RS UNDERGROUND RUNOFF (M ) CC RUNOFF3 IB RS RUNOFF WITHIN SOIL LAYERS (M ) CC SMC IOC RA SOIL MOISTURE CONTENT (VOLUMETRIC) CC ZSOIL IOC RA SOIL LAYER DEPTH ( M ) C IMPLICIT DOUBLE PRECISION (A-H,O-Z) INTEGER JDAY INTEGER IIDAY INTEGER ITIME INTEGER IREC INTEGER NOUT INTEGER NASCII REAL CMCS REAL EC1S REAL EDIR1S REAL ETT1S REAL RTIME REAL SDATE REAL ETADAY, ETADAY_O, PCPDAY REAL SMCDIF, SMCDIF_O, RUNOFFDAY IF (NOUT .GT. 0) THEN SDATE=FLOAT(IIDAY) RTIME=FLOAT(ITIME) WRITE(NOUT,REC=IREC) SDATE IREC = IREC + 1 WRITE(NOUT,REC=IREC) RTIME IREC = IREC + 1 WRITE(NOUT,REC=IREC) PCPDAY IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETADAY IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETADAY_O IREC = IREC + 1 WRITE(NOUT,REC=IREC) RUNOFFDAY IREC = IREC + 1 WRITE(NOUT,REC=IREC) EDIR1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETT1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) EC1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) CMCS IREC = IREC + 1 WRITE(NOUT,REC=IREC) SMCDIF IREC = IREC + 1 WRITE(NOUT,REC=IREC) SMCDIF_O IREC = IREC + 1 ELSEIF (NOUT .LT. 0) THEN NASCII = -NOUT WRITE(NASCII,200) & jday, & ITIME, & PCPDAY, & ETADAY, & ETADAY_O, & RUNOFFDAY, & EDIR1S, & ETT1S, & EC1S, & CMCS, & SMCDIF, & SMCDIF_O END IF 200 FORMAT(I6,1X,I6,10(1x,F15.4)) RETURN END SUBROUTINE PRTHMF(INDI,NOUT,NSOIL,jday, & IIDAY,IITIME,CH,CM,Z,F,S,CMC, & SMCMAX,SFCTMP,T1,Q1,SFCPRS, & SFCSPD,ETA,ETP,STC, & DT,H,AET,RES,IREC, & FLX1,FLX2,FLX3) IMPLICIT NONE CCC CCCC C From MAIN: C C CALL PRTHMF(INDI,NOUT3,NSOIL,jday, C C & IIDAY,ITIME,CH,CM,Z,F,S,CMC, C C & SMCMAX,SFCTMP,T1,Q1,SFCPRS, C C & SFCSPD,ETA,ETP,STC, C C & DT,RNET,H,AET,RES,IREC3) C CCCC CCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CC NAME: PRINT THERMODYNAMIC VARIABLES CC CC CPC: N/A CC === CC CC PURPOSE: TO CALC AND WRITE OUT PARAMETERS TO AID IN SCIENTIFIC CC ======= TUNING AND DEBUGGING OF THE OSU SOIL HYDROLOGY MODEL. CC THIS ROUTINE IS ONLY INVOKED FOR POINTS SELECTED BY CC SPECIFICATION IN THE CONTROL FILE. CC CC METHOD: 1. CALC NEEDED PARTIAL PRODUCTS AND SUMS. CC ====== 2. WRITE OUT RESULTS TO PRINT$ FILE. CC CC REFERENCES: FUNCTIONAL DESCRIPTION, SUBSYSTEM SPECIFICATION CC CC VARIABLES: CC ========= CC CC LABEL I/O TYPE ............DESCRIPTION............... CC CC AET LOC RS ACTUAL EVAPOTRANSPIRATIVE ENERGY CC (J M-2 S-1) CC AET2 LOC RS ACTUAL EVAPOTRANSPIRATION (MM) CC CH IOC RS DRAG COEF FOR HEAT/MOISTURE CC CM IOC RS DRAG COEFFICIENT FOR MOMENTUM CC CMC IOC RS CANOPY MOISTURE CONTENT (M) CC DEW IB RS DEWFALL AMOUNT (M S-1) CC DRIP IB RS EXCESS CANOPY MOISTURE (M) CC EC IB RS CANOPY EVAPORATION (M S-1) CC EDIR IB RS DIRECT SOIL EVAPORATION (M S-1) CC ETA IOC RA FINAL ACTUAL EVAPOTRANSP (KG M-2 S-1) CC ETP IOC RA FINAL POTNTL EVAPOTRANSP (KG M-2 S-1) CC ETPS IOC RA FINAL POTNTL EVAPOTRANSP (J M-2 S-1) CC ETT IB RS ACCUM PLANT TRANSPIRATION (M S-1) CC F IOC RS NET FLUX (TOT DOWNWARD RADIATION) CC FLX1 IB RS 1ST FLUX VALUE (W M-2) CC FLX2 IB RS 2ND FLUX VALUE (W M-2) CC FLX3 IB RS 3RD FLUX VALUE (W M-2) CC FUP IB RS UPWARD GRND LW RADIATION (W M-2) CC H LOC RS SENSIBLE HEAT FLUX (W M-2) CC HEAT LOC RS SENSIBLE HEAT FLUX SUB-PRODUCT CC I IC IS 1/8 MESH I COORDINATE CC ICLAMT IC IA INTERMEDIATE HRLY CLD AMOUNT CC ICLTYP IC IA INTERMEDIATE HRLY CLD TYPE CC J IC IS 1/8 MESH J COORDINATE CC K LOC IS LOOP INDEX CC NSOIL IC IS SOIL LAYER NUMBER CC PET LOC RS POTENTIAL EVAPOTRANSPIRATION (MM) CC Q2 IOC RS MIXING RATIO AT 1ST MDL LVL ABV SKIN CC Q2SAT IOC RS SAT MXNG RATIO AT 1ST MDL LVL ABV SKIN CC RES LOC RS ENERGY BALANCE EQN RESIDUAL (W M-2) CC RIB IB RS BULK RICHARDSON NUMBER CC RLDOWN IC RS DOWNWARD LONGWAVE RADIATION (W M-2) CC RR LOC RS SENSIBLE HEAT SUB-PRODUCT CC RSOLIN IC RS SOLAR RADIATION (W M-2) CC RUNOFF IB RS GRND SFC RUNOFF (M S-1) CC S IC RS GRND SFC FLUX (W M-2) CC SFCPRS IOC RS SFC PRESSURE (PASCALS) CC SFCSPD IC RS SFC WIND SPEED (M S-1) CC SFCTMP IOC RS SFC TEMPERATURE (K) CC SMC IOC RA SOIL MOISTURE CONTENT (VOLUMETRIC) CC SMCMAX IOC RS MAXIMUM SOIL MOISTURE CONTENT LIMIT CC SNODEP IOC RA SNOW DEPTH ( M ) CC STC IOC RA SOIL TEMPERATURE ( 5 CM AND 95 CM ) CC T1 IOC RS SKIN (GRND SFC) TEMPERATURE (K) CC T14 LOC RS GRND SFC TEMP TO THE 4TH POWER (K+4) CC TIME IOC IS 1 HRLY TIME (LOOP INDEX) CC Z IOC RS HT ABOVE GRND LVL (M) CC ZSOIL IOC RA SOIL LAYER DEPTH ( M ) INTEGER IIDAY INTEGER jday INTEGER IITIME INTEGER INDI INTEGER IREC INTEGER NOUT INTEGER NASCII INTEGER NSOIL INTEGER LAYER INTEGER NUMVARS REAL RNETcalc REAL AET REAL AET2 REAL BETA REAL CH REAL CM REAL CMC REAL DRIP REAL DT REAL EC REAL EDIR REAL ETA REAL ETP REAL ETPS REAL ETT REAL F REAL FLX1 REAL FLX2 REAL FLX3 REAL FUP REAL H REAL Q1 REAL RES REAL S REAL SDATE REAL RTIME REAL SFCPRS REAL SFCSPD REAL SFCTMP REAL SMCMAX REAL STC(NSOIL) REAL T1 REAL T14 REAL Z C C MIC$ TASKCOMMON RITE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C CONVERT ACTUAL EVAPOTRANSPIRATION VALUE FROM [KG M-2 S-1] TO [W M-2] C (BY MULTIPLYING BY WATER LATENT HEAT (~2.501E+6) FOR USE IN ENERGY C BALANCE. ALSO CHANGE ACTUAL AND POTENTIAL EVAPORTRANSPIRATION C VALUES FROM [KG M-2 S-1] TO [MM] (BY MULTIPLYING BY DT). CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC T14 = T1 * T1 * T1 * T1 AET = ETA ETPS = ETP AET2 = DT * ETA FUP = 5.67E-8 * T14 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C RESIDUAL OF ALL SURFACE ENERGY BALANCE EQN TERMS: C RES = F - H - S - AET - FUP - FLX1 - FLX2 - FLX3 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C NET RADIATION C RNETcalc = F - FUP C IF (NOUT .GT. 0) THEN SDATE=FLOAT(IIDAY) RTIME=FLOAT(IITIME) WRITE(NOUT,REC=IREC) SDATE IREC = IREC + 1 WRITE(NOUT,REC=IREC) RTIME IREC = IREC + 1 WRITE(NOUT,REC=IREC) F IREC = IREC + 1 WRITE(NOUT,REC=IREC) RNETcalc IREC = IREC + 1 WRITE(NOUT,REC=IREC) CH IREC = IREC + 1 WRITE(NOUT,REC=IREC) CM IREC = IREC + 1 WRITE(NOUT,REC=IREC) H IREC = IREC + 1 WRITE(NOUT,REC=IREC) S IREC = IREC + 1 WRITE(NOUT,REC=IREC) AET IREC = IREC + 1 WRITE(NOUT,REC=IREC) RES IREC = IREC + 1 WRITE(NOUT,REC=IREC) FUP IREC = IREC + 1 WRITE(NOUT,REC=IREC) FLX1 IREC = IREC + 1 WRITE(NOUT,REC=IREC) FLX2 IREC = IREC + 1 WRITE(NOUT,REC=IREC) FLX3 IREC = IREC + 1 WRITE(NOUT,REC=IREC) T1 IREC = IREC + 1 WRITE(NOUT,REC=IREC) Q1 IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETPS IREC = IREC + 1 DO LAYER=1,NSOIL WRITE(NOUT,REC=IREC) STC(LAYER) IREC = IREC + 1 END DO ELSEIF (NOUT .LT. 0) THEN NASCII = -NOUT NUMVARS = 15+NSOIL WRITE(NASCII,200) & jday, & IITIME, & F, & RNETcalc, & CH,CM, & H, & S, & AET, & RES, & FUP,FLX1, FLX2, FLX3, & T1, & Q1, & ETPS, & (STC(LAYER), LAYER=1,NSOIL) END IF 200 FORMAT(I6,1X,I6,19(1x,F15.4)) RETURN END SUBROUTINE PRTHYDF(INDI,NOUT,NSOIL,jday, & IIDAY,DDTIME,ETA, & ETP,PRCP,SH2O,SMC,ALBEDO,ALB,SNOALB, & SNEQV, SNEQV_bef, SNOMLT, SNOWH, SOILM, SOILM_bef, SOILW, & RUNOFF1, & RUNOFF2, & RUNOFF3, & DT,EDIR,EC,ETT,CMC,CMC_bef,IREC,DEW) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCC From MAIN: CC C CC C CALL PRTHYDF(INDI,NOUT1,NSOIL,jday, CC C & IIDAY,ITIME,ETA, CC C & ETP,PRCP,SH2O,SMC,ALBEDO,ALB,SNOALB, CC C & SNEQV, SNEQV_bef, SNOMLT, SNOWH, SOILM, SOILM_bef, SOILW,CC C & RUNOFF1, RUNOFF2, RUNOFF3, CC C & DT,EDIR,EC,ETT,CMC,IREC1) CC CCC CC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C NAME: PRINT HYDROLOGICAL VARIABLES C C VARIABLES: C ========= C C LABEL I/O TYPE ............DESCRIPTION.............. C C ALB SNOW-FREE ALBEDO (FRACTION) C AET LOC RS ACTUAL EVAPOTRANSPIRATIVE ENERGY C (J M-2 S-1) C AET2 LOC RS ACTUAL EVAPOTRANSPIRATION (MM) C CH IOC RS DRAG COEF FOR HEAT/MOISTURE C CM IOC RS DRAG COEFFICIENT FOR MOMENTUM C CMC IOC RS CANOPY MOISTURE CONTENT (M) C DEW IB RS DEWFALL AMOUNT (M S-1) C DRIP IB RS EXCESS CANOPY MOISTURE (M) C EC(EC1) IB RS CANOPY EVAPORATION (M S-1) C EDIR(EDIR1)IB RS DIRECT SOIL EVAPORATION (M S-1) C ETA IOC RA FINAL ACTUAL EVAPOTRANSP (KG M-2 S-1) C ETAS IOC RA FINAL ACTUAL EVAPOTRANSP (MM) C ETP IOC RA FINAL POTNTL EVAPOTRANSP (KG M-2 S-1) C ETPS IOC RA FINAL POTNTL EVAPOTRANSP (MM) C ETT(ETT1) IB RS ACCUM PLANT TRANSPIRATION (M S-1) C F IOC RS NET FLUX (TOT DOWNWARD RADIATION) C FLX1 IB RS 1ST FLUX VALUE (W M-2) C FLX2 IB RS 2ND FLUX VALUE (W M-2) C FLX3 IB RS 3RD FLUX VALUE (W M-2) C FOG IC LS INTERMEDIATE HRLY FOG FLAG C FUP IB RS UPWARD GRND LW RADIATION (W M-2) C H LOC RS SENSIBLE HEAT FLUX (W M-2) C HEAT LOC RS SENSIBLE HEAT FLUX SUB-PRODUCT C HEMI IC IS CURRENT HEMISPHERE (1=N, 2=S) C I IC IS 1/8 MESH I COORDINATE C ICLAMT IC IA INTERMEDIATE HRLY CLD AMOUNT C ICLTYP IC IA INTERMEDIATE HRLY CLD TYPE C J IC IS 1/8 MESH J COORDINATE C K LOC IS LOOP INDEX C NSOIL IC IS SOIL LAYER NUMBER C PET LOC RS POTENTIAL EVAPOTRANSPIRATION (MM) C PRCPDT IOC RA TIME-STEP ACCUM PRECIP (KG M-2) C PRCP IOC RA MEAN PRECIP RATE DURING TIME-STEP(KG M-2 s-1) C Q2 IOC RS MIXING RATIO AT 1ST MDL LVL ABV SKIN C Q2SAT IOC RS SAT MXNG RATIO AT 1ST MDL LVL ABV SKIN C RES LOC RS ENERGY BALANCE EQN RESIDUAL (W M-2) C RIB IB RS BULK RICHARDSON NUMBER C RLDOWN IC RS DOWNWARD LONGWAVE RADIATION (W M-2) C RR LOC RS SENSIBLE HEAT SUB-PRODUCT C RSOLIN IC RS SOLAR RADIATION (W M-2) C RUNOFF1 IB RS GRND SFC RUNOFF (M ) C RUNOFF2 IB RS UNDERGROUND RUNOFF (M ) C RUNOFF3 IB RS RUNOFF WITHIN SOIL LAYERS (M ) C SMC IOC RA SOIL MOISTURE CONTENT (VOLUMETRIC) C SH2O(NSOIL): UNFROZEN SOIL MOISTURE CONTENT (VOLUMETRIC FRACTION) C SNEQV: WATER EQUIVALENT SNOW DEPTH (M) (formerly called SNODEP) C SNOMLT: SNOW MELT (M) (WATER EQUIVALENT) C SNOWH: SNOW DEPTH (M) C SNOALB: MAX ALBEDO OVER DEEP SNOW (FRACTION) C SOILM: TOTAL SOIL COLUMN WATER CONTENT (M) C SOILW: AVAILABLE SOIL MOISTURE (UNITLESS FRACTION) C ZSOIL IOC RA SOIL LAYER DEPTH ( M ) C WRES: WATER BALANCE RESIDUAL (mm) INTEGER jday INTEGER IIDAY INTEGER DDTIME INTEGER INDI INTEGER IREC INTEGER NASCII INTEGER NOUT INTEGER NSOIL INTEGER LAYER INTEGER NUMVARS C REAL ALB REAL ALBEDO REAL CMC REAL CMC_bef REAL CMCS REAL DEWDT REAL DT REAL EC1S REAL EDIR1S REAL ETA REAL ETP REAL ETAMM REAL ETPMM REAL ETT1S REAL LVH2O REAL PRCP REAL PRCPDT REAL RTIME REAL RUNOFF1 REAL RUNOFF11 REAL RUNOFF2 REAL RUNOFF22 REAL RUNOFF3 REAL RUNOFF33 REAL SDATE REAL SMC(NSOIL) REAL SH2O(NSOIL) REAL SNEQV REAL SNEQV_bef REAL SNEQVMM REAL SNOMLT REAL SNOALB REAL SNOWH REAL SOILM REAL SOILM_bef REAL SOILW REAL SNMELT REAL SOILMM REAL TRUNOFF REAL WRES c COMMON /RITE vars REAL BETA REAL DRIP REAL EC REAL EDIR REAL ETT REAL DEW Parameter (LVH2O = 2.501000E+6) C C MIC$ TASKCOMMON RITE C PRINT*,' ' C PRINT*,'COMMON/RITE in prtHydf' C PRINT*,' ' C PRINT*,'BETA=',BETA C PRINT*,'DRIP=',DRIP C PRINT*,'EC=',EC C PRINT*,'EDIR=',EDIR C PRINT*,'ETT=',ETT C PRINT*,'FLX1=',FLX1 C PRINT*,'FLX2=',FLX2 C PRINT*,'FLX3=',FLX3 C PRINT*,'RUNOFF=',RUNOFF C PRINT*,'DEW=',DEW C PRINT*,'RIB=',RIB C PRINT*,'RUNOXX3=',RUNOXX3 C PRINT*,' ' CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C Units conversion from ENERGY (w m-2) to mm of WATER changing state C LVH2O: Latent heat for evaporation for water. ETAMM = ETA*DT/LVH2O ETPMM = ETP*DT/LVH2O C Converting to mm of water accumulated during time-step DT EC1S=EC*1000.*DT EDIR1S=EDIR*1000.*DT ETT1S = ETT*1000.*DT CMCS=CMC*1000. RUNOFF11 = RUNOFF1*DT*1000. RUNOFF22 = RUNOFF2*DT*1000. RUNOFF33 = RUNOFF3*1000. TRUNOFF = RUNOFF11 + RUNOFF22 + RUNOFF33 C C Water Balance Residual: C Storage change in time DT (SMC,SNOW,CMC)=(Precip+Dew-(Runoff+Evap))*DT C Suffix "_bef" stands for "Time-step before" (previous time-step value) C DEWDT = DEW*DT PRCPDT = PRCP*DT/1000. C ETA contains effects of direct and canopy evap, transpiration and dew WRES= (SOILM-SOILM_bef + SNEQV-SNEQV_bef + CMC-CMC_bef & - PRCPDT +(RUNOFF1+RUNOFF2)*DT)*1000. + ETAMM SNEQVMM = SNEQV*1000. SNMELT = SNOMLT*1000. SOILMM = SOILM*1000. IF (NOUT .GT. 0) THEN SDATE=FLOAT(IIDAY) RTIME=FLOAT(DDTIME) WRITE(NOUT,REC=IREC) SDATE IREC = IREC + 1 WRITE(NOUT,REC=IREC) RTIME IREC = IREC + 1 WRITE(NOUT,REC=IREC) PRCP IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETPMM IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETAMM IREC = IREC + 1 WRITE(NOUT,REC=IREC) RUNOFF11 IREC = IREC + 1 WRITE(NOUT,REC=IREC) RUNOFF22 IREC = IREC + 1 WRITE(NOUT,REC=IREC) RUNOFF33 IREC = IREC + 1 WRITE(NOUT,REC=IREC) TRUNOFF IREC = IREC + 1 WRITE(NOUT,REC=IREC) DEWDT*1000. IREC = IREC + 1 WRITE(NOUT,REC=IREC) EDIR1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) ETT1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) EC1S IREC = IREC + 1 WRITE(NOUT,REC=IREC) CMCS IREC = IREC + 1 DO LAYER=1, NSOIL WRITE(NOUT,REC=IREC) SH2O(LAYER) IREC = IREC + 1 END DO DO LAYER=1, NSOIL WRITE(NOUT,REC=IREC) SMC(LAYER) IREC = IREC + 1 END DO WRITE(NOUT,REC=IREC) ALBEDO IREC = IREC + 1 WRITE(NOUT,REC=IREC) ALB IREC = IREC + 1 WRITE(NOUT,REC=IREC) SNOALB IREC = IREC + 1 WRITE(NOUT,REC=IREC) SNOWH IREC = IREC + 1 WRITE(NOUT,REC=IREC) SOILW IREC = IREC + 1 WRITE(NOUT,REC=IREC) SNEQVMM IREC = IREC + 1 WRITE(NOUT,REC=IREC) SNMELT IREC = IREC + 1 WRITE(NOUT,REC=IREC) SOILMM IREC = IREC + 1 WRITE(NOUT,REC=IREC) WRES IREC = IREC + 1 ELSEIF (NOUT .LT. 0) THEN NASCII = -NOUT NUMVARS = 23+NSOIL+NSOIL WRITE(NASCII,200) jday, DDTIME, PRCP, ETP, & ETA, & RUNOFF11, RUNOFF22, RUNOFF33, TRUNOFF, & DEWDT*1000., EDIR1S, ETT1S, EC1S, CMCS, & (SH2O(LAYER), LAYER=1,NSOIL), & (SMC(LAYER), LAYER=1,NSOIL), & ALBEDO,ALB,SNOALB, & SNOWH, & SOILW, & SNEQVMM, & SNMELT, & SOILMM,WRES END IF 200 FORMAT(I6,1X,I6,29(1x,F15.4)) C 200 FORMAT(I6,1X,I6,60(1x,F15.4)) RETURN END SUBROUTINE QDATAP (T,P,RH,QD,QS,ES) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC PURPOSE: OBTAIN SPECIFIC HUMIDITY (q) FROM RELATIVE HUMIDITY CC AND GIVEN PRESSURE AND TEMPERATURE. CC CC CC FORMULAS AND CONSTANTS FROM ROGERS AND YAU, 1989: 'A CC SHORT COURSE IN CLOUD PHYSICS', PERGAMON PRESS, 3rd ED. CC CC Pablo J. Grunmann, 3/6/98. CC Updated to eliminate subroutine SVP, 6/24/98. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C---------------------------------------- C In: C T Temperature (K) C P Pressure (Pa) C RH Relative humidity (%) C----------------------------------------- C Out: C QD Specific humidity (Kg/Kg) C QS Saturation Specific humidity (Kg/Kg) C ES Saturation vapor pressure for water (Pa) C---------------------------------------- REAL T REAL P REAL RH REAL RHF REAL QD REAL QS REAL ES REAL EP REAL EPS REAL E PARAMETER (eps=0.622 ) C C ABOUT THE PARAMETER: C C eps ---------- (Water)/(dry air) molecular mass ratio, epsilon C _____________________________________________________________________ C C function E(T) = Sat. vapor pressure (in Pascal) at C temperature T (uses Clausius-Clapeyron). Es = E(T) C CONVERT REL. HUMIDITY (%) TO THE FRACTIONAL VALUE RHF = RH/100. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CALCULATE SATURATION MIXING RATIO CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C QS = 0.622 * ES /P was substituted by a more precise C formula: -PABLO J. GRUNMANN, 05/28/98. QS = 0.622 * ES /(P - (1.-0.622)*ES) C C CONVERSION FROM REL. HUMIDITY: C (Rogers, pg. 17) C EP = (P*Es*RHF)/(P - Es*(1. - RHF)) QD = eps*EP/(P - (1. - eps)*EP) C RETURN END SUBROUTINE READBND(jday, itime, SFCTMP, RH, SFCPRS, Rg, * Par_in, Par_out, rnet, LW_in, GHF, PRCP, wet, SKN_IRT, * T_02, T_04, T_08, T_16, T_32, T_64, sm_05, * sm_20, sm_60, w_dir, u_bar, eddyuw, * uprim2, vprim2, wprim2, H, LE, * DT, IMONTH,IDAY,NREAD) IMPLICIT NONE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CC CC NAME: READBND CC CC CC PURPOSE: CC THIS IS A MODIFICATION OF V.KOREN'S CC SUBROUTINE READPILPS(ICALB,NREAD,NREAD2,IYEAR,IMONTH,IDAY, CC IHOUR,P,T,Q,U,V,LWDN,RAIN,SOLDN,SOUT, CC TSKNEST) CC TO READ FORCING DATA FROM BONDVILLE, IL ATDD SITE. CC CC PABLO J. GRUNMANN, 05/98 CC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C ARGUMENT LIST IN THE CALL READBND C PREPARED BY PABLO GRUNMANN IN 05/98 C C SFCPRS: PRESSURE AT 1ST MDL LVL ABV SKIN (PASCALS) C PRCP: PRECIP RATE (KG M-2 s-1) C SFCTMP: AIR TEMPERATURE AT 1ST MDL LVL ABV SKIN (K) C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C INTEGER jday,itime,IMONTH,IDAY,NREAD,I INTEGER JULM(13) REAL DT REAL SFCTMP REAL T REAL RH REAL SFCPRS REAL P REAL Rg REAL Par_in REAL Par_out REAL rnet REAL LW_in REAL GHF REAL PRCP REAL RAIN REAL wet REAL SKN_IRT REAL T_02 REAL T_04 REAL T_08 REAL T_16 REAL T_32 REAL T_64 REAL sm_05 REAL sm_20 REAL sm_60 REAL w_dir REAL u_bar REAL eddyuw REAL uprim2 REAL vprim2 REAL wprim2 REAL w_speed REAL CO2 REAL H REAL LE CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC c Save previous step required forcing data c to make up in case of missing. REAL XOLD(32) do i=1,32 XOLD(i)=0.0 end do XOLD(2)= SFCTMP - 273.15 XOLD(3)= RH XOLD(5)= SFCPRS/1.E2 XOLD(6)= Rg XOLD(7)= LW_in XOLD(12)= PRCP*DT/25.4 XOLD(14)= SKN_IRT XOLD(25)= u_bar CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C READ BND_ DATA C ATTENTION! C REMEMBER TO REMOVE TITLE FROM BND_ FILE (1ST LINE), THEN READ DATA READ(NREAD,*) jday, itime, w_speed, w_dir, * T, RH, P, Rg, Par_in, Par_out, * rnet, GHF, RAIN, wet, SKN_IRT, * T_02, T_04, T_08, T_16, T_32, T_64, * u_bar, eddyuw, uprim2, vprim2, wprim2, * H, LE, CO2, LW_in, * sm_05, sm_20, sm_60 C----------------------------------------------------------------------- C TILDEN MEYERS' BND_ DATA: C C jday Julian Day C itime LST, half hour ending C Ta air temperature (C), at 3 m C RH relative humidity (%) at 3 m C Pres surface pressure in mb C Rg incoming short wave radiation (W/m2) C Par_in incoming visible radiation (0.4-0.7 um) in uE/m2/s C Par_out outgoing or reflected visible light C Rnet net radiation (W/m2) C GHF soil or ground heat flux (W/m2) C RAIN total rain for half hour (inches) C SKN_IRT surface or skin temp (C) C T_2 soil temp at 2 cm (C) C T_4 soil tmep at 4 cm C T_8 soil temp at 8 cm C T_16 soil temp at 16 cm C T_32 soil temp at 32 cm C T_64 soil temp at 64 cm C sm_5 soil volumetric water content at 5 centimeter_depht C sm_20 soil volumetric water content at 20 centimeter_depht C sm_60 soil volumetric water content at 60 centimeter_depht C w_dir wind direction C u_bar average wind vector speed (m/s), at 6m C u'w' kinematic shear stress (m2/s2) C u'2 streamwise velocity variance (m2/s2) C v'2 crosswind velocity variance (m2/s2) C w'2 vertical velocity variance (m2/s2) C H sensible heat flux (W/m2) C LE latent energy flux (W/m2) C C The eddy covariance sensors are located at 6 m AGL C The bulk density of the soil is 1.4 gm/cm3 C The site is currently in corn stubble (like it would look C after combining) C C The units uE/m2/s refer to micro Einsteins per square meter per C second. A uE is 6.02 x 10 (17) photons. C C C----------------------------------------------------------------------- CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C THIS PART STILL REQUIRES ATTENTION: C C C C IN LACK OF FORCING DATA, CURRENT PROCEDURE HAS BEEN C C (AND IT IS) TO USE PREVIOUS TIME-STEP RECORDED VALUES. C C C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC IF (T .LT. -173.) THEN T = XOLD(2) ENDIF IF (RH .LT. 0. ) THEN RH = XOLD(3) ENDIF IF (P .LT. 850. ) THEN P = XOLD(5) ENDIF IF (Rg .LT. -100. ) THEN Rg = XOLD(6) ENDIF IF (LW_in .LT. 0.) THEN LW_in = XOLD(7) ENDIF IF (RAIN .LT. 0. ) THEN RAIN = XOLD(12) ENDIF IF (u_bar .LT. 0. ) THEN C MISSING u_bar, USE W_SPEED WITH LINEAR REGRESSION CONVERSION u_bar = 0.85*w_speed C BUT, IF EVEN W_SPEED IS NOT AVAILABLE, USE PREVIOUS STEP VALUE IF (u_bar .LT. 0. ) THEN u_bar = XOLD(25) ENDIF ENDIF CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C CONVERT VARIABLES C C OBTAIN DAY AND MONTH: JULIAN DATE SUBROUTINE CALL JULDATE(JDAY,IMONTH,IDAY,JULM) C C CONVERT RAIN FROM INCHES IN 30MIN TO KG M^-2 S^-1 C (SAME AS PRECIP.RATE IN MM/SEC) C PRCP = RAIN*25.4/DT C C AIR TEMPERATURE IN KELVIN C SFCTMP = T + 273.15 C C SFC PRESSURE IN PASCAL C SFCPRS = P*1.E2 C C ---- DONE CONVERTING VARIABLES ---------------------------- CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC RETURN END C ---------------------------------------------------------------------- SUBROUTINE READCNTL(CNTRFL,NCYCLES,L2nd_data,NRUN,NRUN2, & DT,NSOIL,NSOLD,Z, & SLDPTH,SOILTP,VEGTYP,SLOPETYP,ALBEDOM,SHDFACM,SHDMIN,SNOALB,ICE, & TBOT,T1, & STC,SMC,SH2O,CMC,SNODEP,SNEQV,FILENAME,FILENAME2, & LATITUDE, & LONGITUDE, & JDAY,IBINOUT, & TIME) IMPLICIT NONE C READS A CONTROL FILE WHICH INCLUDES INPUT PARAMETERS FOR OSU MODEL - INTEGER NCYCLES INTEGER NRUN INTEGER NRUN2 INTEGER NSOIL INTEGER NSOLD CCCC INTEGER NROOT INTEGER SOILTP INTEGER VEGTYP INTEGER SLOPETYP INTEGER ICE INTEGER IBINOUT INTEGER SYDAYS INTEGER SYSECS INTEGER INTEGERDT LOGICAL L2nd_data REAL SLDPTH(NSOLD) REAL STC(NSOLD) REAL SMC(NSOLD) REAL SH2O(NSOLD) REAL DT REAL Z REAL ALBEDOM(13) REAL SHDFACM(13) REAL SNOALB REAL TBOT CCCC REAL Z0 REAL T1 REAL CMC REAL SNODEP REAL SNEQV CCCC REAL CZIL CCCC REAL REFKDT REAL LATITUDE REAL LONGITUDE INTEGER JDAY INTEGER TIME INTEGER NREAD, I, K REAL SHDMIN INTEGER IMON CHARACTER*72 CNTRFL, LINEFEED CHARACTER*72 FILENAME, FILENAME2 NREAD = 21 OPEN (UNIT=NREAD, FILE=CNTRFL, STATUS='OLD', & FORM='FORMATTED') C JUMP-READ 2 LINES (CHARACTER) TO SKIP COMMENTS (LINE FEED) DO I=1,2 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C Model Configuration: READ (NREAD, * ) LATITUDE READ (NREAD, * ) LONGITUDE READ (NREAD, 100) IBINOUT READ (NREAD, 100) JDAY READ (NREAD, 100) TIME C READ (NREAD, 100) NCYCLES READ (NREAD, 100) SYDAYS READ (NREAD, * ) L2nd_data READ (NREAD, 150) NRUN2 READ (NREAD, * ) DT READ (NREAD, 100) NSOIL READ (NREAD, * ) Z READ (NREAD, * ) (SLDPTH(K), K=1,NSOIL) CCCC IF (MOD(YSEC,DT) .NE. 0) THEN CCCC PRINT*,' ' CCCC PRINT*,'#### #### -ERROR- #### ####' CCCC PRINT*,' ' CCCC PRINT*,'SECONDS IN SPIN-UP YEAR IS NOT AN ' CCCC PRINT*,'INTEGRAL NUMBER OF TIME STEPS. ' CCCC PRINT*,'Check YSEC and DT so that YSEC/DT is an integer:' CCCC PRINT*,' ' CCCC Write(*,200),YSEC/DT CCCC PRINT*,'INT(YSEC/DT)-YSEC/DT= ',INT(YSEC/DT)-YSEC/DT CCCC PRINT*,' MOD(YSEC,DT)= ',MOD(YSEC,DT) CCCC PRINT*,' ' CCCC PRINT*,'#### #### #### ####' CCCC PRINT*,' ' CCCC stop 999 CCCC ENDIF IF (NCYCLES .GT. 1) then c f90 -g -DEBUG:fullwarn=on: A real division was encountered in an c expression being converted to integer. C NRUN=SYDAYS*24*3600/DT SYSECS=SYDAYS*24*3600 INTEGERDT=DT NRUN=SYSECS/INTEGERDT ELSE NRUN=NRUN2 ENDIF C NEW: NROOT, SLDPTH(K), K=1,NSOIL C REMOVED: ZSOIL(K), K=1,NSOIL C READ 3 LINES (CHARACTER) TO SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED WRITE(*,'(A)') LINEFEED END DO C ATMOSPHERIC DATA FILES TO BE USED FOR FORCING: READ(NREAD,'(A)') FILENAME PRINT*,' FILENAME = ', FILENAME READ(NREAD,'(A)') FILENAME2 PRINT*,' FILENAME2 = ', FILENAME2 C C READ 3 LINES (CHARACTER) TO SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C ------------------------ C Land surface characteristics: C ------------------------ READ (NREAD, 100) SOILTP READ (NREAD, 100) VEGTYP READ (NREAD, 100) SLOPETYP C ...........SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C ........... READ (NREAD, *) (ALBEDOM(K), K=1,12) ALBEDOM(13) = ALBEDOM(1) C ...........SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C ........... READ (NREAD, *) (SHDFACM(K), K=1,12) DO IMON=1,12 c WRITE(*,*) IMON,SHDFACM(IMON),SHDMIN SHDMIN = MIN(SHDMIN,SHDFACM(IMON)) ENDDO c WRITE(*,*) SHDMIN SHDFACM(13) = SHDFACM(1) C ...........SKIP COMMENTS (LINE FEED) READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED C ........... READ (NREAD, *) SNOALB READ (NREAD, 100) ICE C NEW: ALBEDO, SHDFAC, ICE, C REMOVED: LAND, CFACTR C C READ 3 LINES (CHARACTER) TO SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C ------------------ C PHYSICAL PARAMETERS: C ------------------ READ (NREAD, *) TBOT C C READ 3 LINES (CHARACTER) TO SKIP COMMENTS (LINE FEED) DO I=1,3 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO C ------------------------ C INITIAL STATE VARIABLES: C ------------------------ READ (NREAD, *) T1 READ (NREAD, *) (STC(K), K=1,NSOIL) READ (NREAD, *) (SMC(K), K=1,NSOIL) READ (NREAD, *) (SH2O(K), K=1,NSOIL) READ (NREAD, *) CMC READ (NREAD, *) SNODEP READ (NREAD, *) SNEQV C READ LAST 2 LINES (CHARACTER) TO SHOW THAT CONTROLFILE WAS C COMPLETELY READ DO I=1,2 READ(NREAD,'(A)') LINEFEED C writ WRITE(*,'(A)') LINEFEED END DO CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C V. KOREN 5/21/97 C TWO PARAMETERS TO RUN FROZEN GROUND CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C C READ (NREAD, *) CVFRZ C C READ (NREAD, *) FRZK C C C C READ (NREAD, *) SLOPE C C C C CVFRZ = 3.0 C C FRZCL = 0.50 C C SLOPE = 0.0005 C C C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 100 FORMAT(I7) 150 FORMAT(I9) C 250 FORMAT(I12) C 200 FORMAT(14X,'SYDAYS*24*3600/DT= ',F18.12) C 400 FORMAT(10(2X, F14.8)) CLOSE(NREAD) C RETURN END SUBROUTINE ALCALC (ALB,SNOALB,SHDFAC,SHDMIN,SNCOVR,TSNOW,ALBEDO) IMPLICIT NONE C ---------------------------------------------------------------------- C CALCULATE ALBEDO INCLUDING SNOW EFFECT (0 -> 1) C ALB SNOWFREE ALBEDO C SNOALB MAXIMUM (DEEP) SNOW ALBEDO C SHDFAC AREAL FRACTIONAL COVERAGE OF GREEN VEGETATION C SHDMIN MINIMUM AREAL FRACTIONAL COVERAGE OF GREEN VEGETATION C SNCOVR FRACTIONAL SNOW COVER C ALBEDO SURFACE ALBEDO INCLUDING SNOW EFFECT C TSNOW SNOW SURFACE TEMPERATURE (K) C ---------------------------------------------------------------------- REAL ALB, SNOALB, SHDFAC, SHDMIN, SNCOVR, ALBEDO, TSNOW C ---------------------------------------------------------------------- C SNOALB IS ARGUMENT REPRESENTING MAXIMUM ALBEDO OVER DEEP SNOW, C AS PASSED INTO SFLX, AND ADAPTED FROM THE SATELLITE-BASED MAXIMUM C SNOW ALBEDO FIELDS PROVIDED BY D. ROBINSON AND G. KUKLA C (1985, JCAM, VOL 24, 402-411) C ---------------------------------------------------------------------- C changed in version 2.6 on June 2nd 2003 C ALBEDO = ALB + (1.0-(SHDFAC-SHDMIN))*SNCOVR*(SNOALB-ALB) ALBEDO = ALB + SNCOVR*(SNOALB-ALB) IF (ALBEDO .GT. SNOALB) ALBEDO=SNOALB C BASE FORMULATION (DICKINSON ET AL., 1986, COGLEY ET AL., 1990) C IF (TSNOW.LE.263.16) THEN C ALBEDO=SNOALB C ELSE C IF (TSNOW.LT.273.16) THEN C TM=0.1*(TSNOW-263.16) C ALBEDO=0.5*((0.9-0.2*(TM**3))+(0.8-0.16*(TM**3))) C ELSE C ALBEDO=0.67 C ENDIF C ENDIF C ISBA FORMULATION (VERSEGHY, 1991; BAKER ET AL., 1990) C IF (TSNOW.LT.273.16) THEN C ALBEDO=SNOALB-0.008*DT/86400 C ELSE C ALBEDO=(SNOALB-0.5)*EXP(-0.24*DT/86400)+0.5 C ENDIF C ---------------------------------------------------------------------- C END SUBROUTINE ALCALC C ---------------------------------------------------------------------- RETURN END SUBROUTINE CANRES (SOLAR,CH,SFCTMP,Q2,SFCPRS,SMC,ZSOIL,NSOIL, & SMCWLT,SMCREF,RSMIN,RC,PC,NROOT,Q2SAT,DQSDT2, & TOPT,RSMAX,RGL,HS,XLAI, & RCS,RCT,RCQ,RCSOIL) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE CANRES C ---------------------------------------------------------------------- C CALCULATE CANOPY RESISTANCE WHICH DEPENDS ON INCOMING SOLAR RADIATION, C AIR TEMPERATURE, ATMOSPHERIC WATER VAPOR PRESSURE DEFICIT AT THE C LOWEST MODEL LEVEL, AND SOIL MOISTURE (PREFERABLY UNFROZEN SOIL C MOISTURE RATHER THAN TOTAL) C ---------------------------------------------------------------------- C SOURCE: JARVIS (1976), NOILHAN AND PLANTON (1989, MWR), JACQUEMIN AND C NOILHAN (1990, BLM) C SEE ALSO: CHEN ET AL (1996, JGR, VOL 101(D3), 7251-7268), EQNS 12-14 C AND TABLE 2 OF SEC. 3.1.2 C ---------------------------------------------------------------------- C INPUT: C SOLAR INCOMING SOLAR RADIATION C CH SURFACE EXCHANGE COEFFICIENT FOR HEAT AND MOISTURE C SFCTMP AIR TEMPERATURE AT 1ST LEVEL ABOVE GROUND C Q2 AIR HUMIDITY AT 1ST LEVEL ABOVE GROUND C Q2SAT SATURATION AIR HUMIDITY AT 1ST LEVEL ABOVE GROUND C DQSDT2 SLOPE OF SATURATION HUMIDITY FUNCTION WRT TEMP C SFCPRS SURFACE PRESSURE C SMC VOLUMETRIC SOIL MOISTURE C ZSOIL SOIL DEPTH (NEGATIVE SIGN, AS IT IS BELOW GROUND) C NSOIL NO. OF SOIL LAYERS C NROOT NO. OF SOIL LAYERS IN ROOT ZONE (1.LE.NROOT.LE.NSOIL) C XLAI LEAF AREA INDEX C SMCWLT WILTING POINT C SMCREF REFERENCE SOIL MOISTURE (WHERE SOIL WATER DEFICIT STRESS C SETS IN) C RSMIN, RSMAX, TOPT, RGL, HS ARE CANOPY STRESS PARAMETERS SET IN C SURBOUTINE REDPRM C OUTPUT: C PC PLANT COEFFICIENT C RC CANOPY RESISTANCE C ---------------------------------------------------------------------- INTEGER NSOLD PARAMETER(NSOLD = 20) INTEGER K INTEGER NROOT INTEGER NSOIL REAL CH REAL CP REAL DELTA REAL DQSDT2 REAL FF REAL GX REAL HS REAL P REAL PART(NSOLD) REAL PC REAL Q2 REAL Q2SAT REAL RC REAL RSMIN REAL RCQ REAL RCS REAL RCSOIL REAL RCT REAL RD REAL RGL REAL RR REAL RSMAX REAL SFCPRS REAL SFCTMP REAL SIGMA REAL SLV REAL SMC(NSOIL) REAL SMCREF REAL SMCWLT REAL SOLAR REAL TOPT REAL SLVCP REAL ST1 REAL TAIR4 REAL XLAI REAL ZSOIL(NSOIL) PARAMETER(CP = 1004.5) PARAMETER(RD = 287.04) PARAMETER(SIGMA = 5.67E-8) PARAMETER(SLV = 2.501000E6) C ---------------------------------------------------------------------- C INITIALIZE CANOPY RESISTANCE MULTIPLIER TERMS. C ---------------------------------------------------------------------- RCS = 0.0 RCT = 0.0 RCQ = 0.0 RCSOIL = 0.0 RC = 0.0 C ---------------------------------------------------------------------- C CONTRIBUTION DUE TO INCOMING SOLAR RADIATION C ---------------------------------------------------------------------- FF = 0.55*2.0*SOLAR/(RGL*XLAI) RCS = (FF + RSMIN/RSMAX) / (1.0 + FF) RCS = MAX(RCS,0.0001) C ---------------------------------------------------------------------- C CONTRIBUTION DUE TO AIR TEMPERATURE AT FIRST MODEL LEVEL ABOVE GROUND C RCT EXPRESSION FROM NOILHAN AND PLANTON (1989, MWR). C ---------------------------------------------------------------------- RCT = 1.0 - 0.0016*((TOPT-SFCTMP)**2.0) RCT = MAX(RCT,0.0001) C ---------------------------------------------------------------------- C CONTRIBUTION DUE TO VAPOR PRESSURE DEFICIT AT FIRST MODEL LEVEL. C RCQ EXPRESSION FROM SSIB C ---------------------------------------------------------------------- RCQ = 1.0/(1.0+HS*(Q2SAT-Q2)) RCQ = MAX(RCQ,0.01) C ---------------------------------------------------------------------- C CONTRIBUTION DUE TO SOIL MOISTURE AVAILABILITY. C DETERMINE CONTRIBUTION FROM EACH SOIL LAYER, THEN ADD THEM UP. C ---------------------------------------------------------------------- GX = (SMC(1) - SMCWLT) / (SMCREF - SMCWLT) IF (GX .GT. 1.) GX = 1. IF (GX .LT. 0.) GX = 0. C ---------------------------------------------------------------------- C USE SOIL DEPTH AS WEIGHTING FACTOR C ---------------------------------------------------------------------- PART(1) = (ZSOIL(1)/ZSOIL(NROOT)) * GX C ---------------------------------------------------------------------- C USE ROOT DISTRIBUTION AS WEIGHTING FACTOR C PART(1) = RTDIS(1) * GX C ---------------------------------------------------------------------- DO K = 2,NROOT GX = (SMC(K) - SMCWLT) / (SMCREF - SMCWLT) IF (GX .GT. 1.) GX = 1. IF (GX .LT. 0.) GX = 0. C ---------------------------------------------------------------------- C USE SOIL DEPTH AS WEIGHTING FACTOR C ---------------------------------------------------------------------- PART(K) = ((ZSOIL(K)-ZSOIL(K-1))/ZSOIL(NROOT)) * GX C ---------------------------------------------------------------------- C USE ROOT DISTRIBUTION AS WEIGHTING FACTOR C PART(K) = RTDIS(K) * GX C ---------------------------------------------------------------------- END DO DO K = 1,NROOT RCSOIL = RCSOIL+PART(K) END DO RCSOIL = MAX(RCSOIL,0.0001) C ---------------------------------------------------------------------- C DETERMINE CANOPY RESISTANCE DUE TO ALL FACTORS. CONVERT CANOPY C RESISTANCE (RC) TO PLANT COEFFICIENT (PC) TO BE USED WITH POTENTIAL C EVAP IN DETERMINING ACTUAL EVAP. PC IS DETERMINED BY: C PC * LINERIZED PENMAN POTENTIAL EVAP = C PENMAN-MONTEITH ACTUAL EVAPORATION (CONTAINING RC TERM). C ---------------------------------------------------------------------- RC = RSMIN/(XLAI*RCS*RCT*RCQ*RCSOIL) c TAIR4 = SFCTMP**4. c ST1 = (4.*SIGMA*RD)/CP c SLVCP = SLV/CP c RR = ST1*TAIR4/(SFCPRS*CH) + 1.0 RR = (4.*SIGMA*RD/CP)*(SFCTMP**4.)/(SFCPRS*CH) + 1.0 DELTA = (SLV/CP)*DQSDT2 PC = (RR+DELTA)/(RR*(1.+RC*CH)+DELTA) C ---------------------------------------------------------------------- C END SUBROUTINE CANRES C ---------------------------------------------------------------------- RETURN END FUNCTION CSNOW (DSNOW) IMPLICIT NONE C ---------------------------------------------------------------------- C FUNCTION CSNOW C ---------------------------------------------------------------------- C CALCULATE SNOW TERMAL CONDUCTIVITY C ---------------------------------------------------------------------- REAL C REAL DSNOW REAL CSNOW REAL UNIT PARAMETER(UNIT = 0.11631) C ---------------------------------------------------------------------- C CSNOW IN UNITS OF CAL/(CM*HR*C), RETURNED IN W/(M*C) C BASIC VERSION IS DYACHKOVA EQUATION (1960), FOR RANGE 0.1-0.4 C ---------------------------------------------------------------------- C=0.328*10**(2.25*DSNOW) CSNOW=UNIT*C C ---------------------------------------------------------------------- C DE VAUX EQUATION (1933), IN RANGE 0.1-0.6 C ---------------------------------------------------------------------- C CSNOW=0.0293*(1.+100.*DSNOW**2) C ---------------------------------------------------------------------- C E. ANDERSEN FROM FLERCHINGER C ---------------------------------------------------------------------- C CSNOW=0.021+2.51*DSNOW**2 C ---------------------------------------------------------------------- C END FUNCTION CSNOW C ---------------------------------------------------------------------- RETURN END FUNCTION DEVAP (ETP1,SMC,ZSOIL,SHDFAC,SMCMAX,BEXP, & DKSAT,DWSAT,SMCDRY,SMCREF,SMCWLT,FXEXP) IMPLICIT NONE C ---------------------------------------------------------------------- C FUNCTION DEVAP C ---------------------------------------------------------------------- C CALCULATE DIRECT SOIL EVAPORATION C ---------------------------------------------------------------------- REAL BEXP REAL DEVAP REAL DKSAT REAL DWSAT REAL ETP1 REAL FX REAL FXEXP REAL SHDFAC REAL SMC REAL SMCDRY REAL SMCMAX REAL ZSOIL REAL SMCREF REAL SMCWLT REAL SRATIO C ---------------------------------------------------------------------- C DIRECT EVAP A FUNCTION OF RELATIVE SOIL MOISTURE AVAILABILITY, LINEAR C WHEN FXEXP=1. C FX > 1 REPRESENTS DEMAND CONTROL C FX < 1 REPRESENTS FLUX CONTROL C ---------------------------------------------------------------------- SRATIO = (SMC - SMCDRY) / (SMCMAX - SMCDRY) IF (SRATIO .GT. 0.) THEN FX = SRATIO**FXEXP FX = MAX ( MIN ( FX, 1. ) ,0. ) ELSE FX = 0. ENDIF C ---------------------------------------------------------------------- C ALLOW FOR THE DIRECT-EVAP-REDUCING EFFECT OF SHADE C ---------------------------------------------------------------------- DEVAP = FX * ( 1.0 - SHDFAC ) * ETP1 C ---------------------------------------------------------------------- C END FUNCTION DEVAP C ---------------------------------------------------------------------- RETURN END FUNCTION FRH2O (TKELV,SMC,SH2O,SMCMAX,BEXP,PSIS) IMPLICIT NONE C ---------------------------------------------------------------------- C FUNCTION FRH2O C ---------------------------------------------------------------------- C CALCULATE AMOUNT OF SUPERCOOLED LIQUID SOIL WATER CONTENT IF C TEMPERATURE IS BELOW 273.15K (T0). REQUIRES NEWTON-TYPE ITERATION TO C SOLVE THE NONLINEAR IMPLICIT EQUATION GIVEN IN EQN 17 OF KOREN ET AL C (1999, JGR, VOL 104(D16), 19569-19585). C ---------------------------------------------------------------------- C NEW VERSION (JUNE 2001): MUCH FASTER AND MORE ACCURATE NEWTON C ITERATION ACHIEVED BY FIRST TAKING LOG OF EQN CITED ABOVE -- LESS THAN C 4 (TYPICALLY 1 OR 2) ITERATIONS ACHIEVES CONVERGENCE. ALSO, EXPLICIT C 1-STEP SOLUTION OPTION FOR SPECIAL CASE OF PARAMETER CK=0, WHICH C REDUCES THE ORIGINAL IMPLICIT EQUATION TO A SIMPLER EXPLICIT FORM, C KNOWN AS THE "FLERCHINGER EQN". IMPROVED HANDLING OF SOLUTION IN THE C LIMIT OF FREEZING POINT TEMPERATURE T0. C ---------------------------------------------------------------------- C INPUT: C C TKELV.........TEMPERATURE (Kelvin) C SMC...........TOTAL SOIL MOISTURE CONTENT (VOLUMETRIC) C SH2O..........LIQUID SOIL MOISTURE CONTENT (VOLUMETRIC) C SMCMAX........SATURATION SOIL MOISTURE CONTENT (FROM REDPRM) C B.............SOIL TYPE "B" PARAMETER (FROM REDPRM) C PSIS..........SATURATED SOIL MATRIC POTENTIAL (FROM REDPRM) C C OUTPUT: C FRH2O.........SUPERCOOLED LIQUID WATER CONTENT C ---------------------------------------------------------------------- REAL BEXP REAL BLIM REAL BX REAL CK REAL DENOM REAL DF REAL DH2O REAL DICE REAL DSWL REAL ERROR REAL FK REAL FRH2O REAL GS REAL HLICE REAL PSIS REAL SH2O REAL SMC REAL SMCMAX REAL SWL REAL SWLK REAL TKELV REAL T0 INTEGER NLOG INTEGER KCOUNT PARAMETER(CK = 8.0) C PARAMETER(CK = 0.0) PARAMETER(BLIM = 5.5) PARAMETER(ERROR = 0.005) PARAMETER(HLICE = 3.335E5) PARAMETER(GS = 9.81) PARAMETER(DICE = 920.0) PARAMETER(DH2O = 1000.0) PARAMETER(T0 = 273.15) C ---------------------------------------------------------------------- C LIMITS ON PARAMETER B: B < 5.5 (use parameter BLIM) C SIMULATIONS SHOWED IF B > 5.5 UNFROZEN WATER CONTENT IS C NON-REALISTICALLY HIGH AT VERY LOW TEMPERATURES. C ---------------------------------------------------------------------- BX = BEXP IF (BEXP .GT. BLIM) BX = BLIM C ---------------------------------------------------------------------- C INITIALIZING ITERATIONS COUNTER AND ITERATIVE SOLUTION FLAG. C ---------------------------------------------------------------------- NLOG=0 KCOUNT=0 C ---------------------------------------------------------------------- C IF TEMPERATURE NOT SIGNIFICANTLY BELOW FREEZING (T0), SH2O = SMC C ---------------------------------------------------------------------- IF (TKELV .GT. (T0 - 1.E-3)) THEN FRH2O = SMC ELSE IF (CK .NE. 0.0) THEN C ---------------------------------------------------------------------- C OPTION 1: ITERATED SOLUTION FOR NONZERO CK C IN KOREN ET AL, JGR, 1999, EQN 17 C ---------------------------------------------------------------------- C INITIAL GUESS FOR SWL (frozen content) C ---------------------------------------------------------------------- SWL = SMC-SH2O C ---------------------------------------------------------------------- C KEEP WITHIN BOUNDS. C ---------------------------------------------------------------------- IF (SWL .GT. (SMC-0.02)) SWL = SMC-0.02 IF (SWL .LT. 0.) SWL = 0. C ---------------------------------------------------------------------- C START OF ITERATIONS C ---------------------------------------------------------------------- DO WHILE ( (NLOG .LT. 10) .AND. (KCOUNT .EQ. 0) ) NLOG = NLOG+1 DF = ALOG(( PSIS*GS/HLICE ) * ( ( 1.+CK*SWL )**2. ) * & ( SMCMAX/(SMC-SWL) )**BX) - ALOG(-(TKELV-T0)/TKELV) DENOM = 2. * CK / ( 1.+CK*SWL ) + BX / ( SMC - SWL ) SWLK = SWL - DF/DENOM C ---------------------------------------------------------------------- C BOUNDS USEFUL FOR MATHEMATICAL SOLUTION. C ---------------------------------------------------------------------- IF (SWLK .GT. (SMC-0.02)) SWLK = SMC - 0.02 IF (SWLK .LT. 0.) SWLK = 0. C ---------------------------------------------------------------------- C MATHEMATICAL SOLUTION BOUNDS APPLIED. C ---------------------------------------------------------------------- DSWL = ABS(SWLK-SWL) SWL = SWLK C ---------------------------------------------------------------------- C IF MORE THAN 10 ITERATIONS, USE EXPLICIT METHOD (CK=0 APPROX.) C WHEN DSWL LESS OR EQ. ERROR, NO MORE ITERATIONS REQUIRED. C ---------------------------------------------------------------------- IF ( DSWL .LE. ERROR ) THEN KCOUNT = KCOUNT+1 ENDIF END DO C ---------------------------------------------------------------------- C END OF ITERATIONS C ---------------------------------------------------------------------- C BOUNDS APPLIED WITHIN DO-BLOCK ARE VALID FOR PHYSICAL SOLUTION. C ---------------------------------------------------------------------- FRH2O = SMC - SWL C ---------------------------------------------------------------------- C END OPTION 1 C ---------------------------------------------------------------------- ENDIF C ---------------------------------------------------------------------- C OPTION 2: EXPLICIT SOLUTION FOR FLERCHINGER EQ. i.e. CK=0 C IN KOREN ET AL., JGR, 1999, EQN 17 C APPLY PHYSICAL BOUNDS TO FLERCHINGER SOLUTION C ---------------------------------------------------------------------- IF (KCOUNT .EQ. 0) THEN Print*,'Flerchinger used in NEW version. Iterations=',NLOG FK = (((HLICE/(GS*(-PSIS)))* & ((TKELV-T0)/TKELV))**(-1/BX))*SMCMAX IF (FK .LT. 0.02) FK = 0.02 FRH2O = MIN (FK, SMC) C ---------------------------------------------------------------------- C END OPTION 2 C ---------------------------------------------------------------------- ENDIF ENDIF C ---------------------------------------------------------------------- C END FUNCTION FRH2O C ---------------------------------------------------------------------- RETURN END SUBROUTINE HRT (RHSTS,STC,SMC,SMCMAX,NSOIL,ZSOIL,YY,ZZ1, & TBOT,ZBOT,PSISAT,SH2O,DT,BEXP, & F1,DF1,QUARTZ,CSOIL,AI,BI,CI) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE HRT C ---------------------------------------------------------------------- C CALCULATE THE RIGHT HAND SIDE OF THE TIME TENDENCY TERM OF THE SOIL C THERMAL DIFFUSION EQUATION. ALSO TO COMPUTE ( PREPARE ) THE MATRIX C COEFFICIENTS FOR THE TRI-DIAGONAL MATRIX OF THE IMPLICIT TIME SCHEME. C ---------------------------------------------------------------------- INTEGER NSOLD PARAMETER(NSOLD = 20) LOGICAL ITAVG INTEGER I INTEGER K INTEGER NSOIL C ---------------------------------------------------------------------- C DECLARE WORK ARRAYS NEEDED IN TRI-DIAGONAL IMPLICIT SOLVER C ---------------------------------------------------------------------- REAL AI(NSOLD) REAL BI(NSOLD) REAL CI(NSOLD) C ---------------------------------------------------------------------- C DECLARATIONS C ---------------------------------------------------------------------- REAL BEXP REAL CAIR REAL CH2O REAL CICE REAL CSOIL REAL DDZ REAL DDZ2 REAL DENOM REAL DF1 REAL DF1N REAL DF1K REAL DT REAL DTSDZ REAL DTSDZ2 REAL F1 REAL HCPCT REAL PSISAT REAL QUARTZ REAL QTOT REAL RHSTS(NSOIL) REAL SSOIL REAL SICE REAL SMC(NSOIL) REAL SH2O(NSOIL) REAL SMCMAX REAL SNKSRC REAL STC(NSOIL) REAL T0 REAL TAVG REAL TBK REAL TBK1 REAL TBOT REAL ZBOT REAL TSNSR REAL TSURF REAL YY REAL ZSOIL(NSOIL) REAL ZZ1 PARAMETER(T0 = 273.15) C ---------------------------------------------------------------------- C SET SPECIFIC HEAT CAPACITIES OF AIR, WATER, ICE, SOIL MINERAL C ---------------------------------------------------------------------- PARAMETER(CAIR = 1004.0) PARAMETER(CH2O = 4.2E6) PARAMETER(CICE = 2.106E6) C NOTE: CSOIL NOW SET IN ROUTINE REDPRM AND PASSED IN C PARAMETER(CSOIL = 1.26E6) C ---------------------------------------------------------------------- C INITIALIZE LOGICAL FOR SOIL LAYER TEMPERATURE AVERAGING. C ---------------------------------------------------------------------- ITAVG = .TRUE. C ITAVG = .FALSE. C ---------------------------------------------------------------------- C BEGIN SECTION FOR TOP SOIL LAYER C ---------------------------------------------------------------------- C CALC THE HEAT CAPACITY OF THE TOP SOIL LAYER C ---------------------------------------------------------------------- HCPCT = SH2O(1)*CH2O + (1.0-SMCMAX)*CSOIL + (SMCMAX-SMC(1))*CAIR & + ( SMC(1) - SH2O(1) )*CICE C ---------------------------------------------------------------------- C CALC THE MATRIX COEFFICIENTS AI, BI, AND CI FOR THE TOP LAYER C ---------------------------------------------------------------------- DDZ = 1.0 / ( -0.5 * ZSOIL(2) ) AI(1) = 0.0 CI(1) = (DF1 * DDZ) / (ZSOIL(1) * HCPCT) BI(1) = -CI(1) + DF1 / (0.5 * ZSOIL(1) * ZSOIL(1)*HCPCT*ZZ1) C ---------------------------------------------------------------------- C CALCULATE THE VERTICAL SOIL TEMP GRADIENT BTWN THE 1ST AND 2ND SOIL C LAYERS. THEN CALCULATE THE SUBSURFACE HEAT FLUX. USE THE TEMP C GRADIENT AND SUBSFC HEAT FLUX TO CALC "RIGHT-HAND SIDE TENDENCY C TERMS", OR "RHSTS", FOR TOP SOIL LAYER. C ---------------------------------------------------------------------- DTSDZ = (STC(1) - STC(2)) / (-0.5 * ZSOIL(2)) SSOIL = DF1 * (STC(1) - YY) / (0.5 * ZSOIL(1) * ZZ1) RHSTS(1) = (DF1 * DTSDZ - SSOIL) / (ZSOIL(1) * HCPCT) C ---------------------------------------------------------------------- C NEXT CAPTURE THE VERTICAL DIFFERENCE OF THE HEAT FLUX AT TOP AND C BOTTOM OF FIRST SOIL LAYER FOR USE IN HEAT FLUX CONSTRAINT APPLIED TO C POTENTIAL SOIL FREEZING/THAWING IN ROUTINE SNKSRC. C ---------------------------------------------------------------------- QTOT = SSOIL - DF1*DTSDZ C ---------------------------------------------------------------------- C IF TEMPERATURE AVERAGING INVOKED (ITAVG=TRUE; ELSE SKIP): C SET TEMP "TSURF" AT TOP OF SOIL COLUMN (FOR USE IN FREEZING SOIL C PHYSICS LATER IN FUNCTION SUBROUTINE SNKSRC). IF SNOWPACK CONTENT IS C ZERO, THEN TSURF EXPRESSION BELOW GIVES TSURF = SKIN TEMP. IF C SNOWPACK IS NONZERO (HENCE ARGUMENT ZZ1=1), THEN TSURF EXPRESSION C BELOW YIELDS SOIL COLUMN TOP TEMPERATURE UNDER SNOWPACK. THEN C CALCULATE TEMPERATURE AT BOTTOM INTERFACE OF 1ST SOIL LAYER FOR USE C LATER IN FUNCTION SUBROUTINE SNKSRC C ---------------------------------------------------------------------- IF (ITAVG) THEN TSURF = (YY + (ZZ1-1) * STC(1)) / ZZ1 CALL TBND (STC(1),STC(2),ZSOIL,ZBOT,1,NSOIL,TBK) ENDIF C ---------------------------------------------------------------------- C CALCULATE FROZEN WATER CONTENT IN 1ST SOIL LAYER. C ---------------------------------------------------------------------- SICE = SMC(1) - SH2O(1) C ---------------------------------------------------------------------- C IF FROZEN WATER PRESENT OR ANY OF LAYER-1 MID-POINT OR BOUNDING C INTERFACE TEMPERATURES BELOW FREEZING, THEN CALL SNKSRC TO C COMPUTE HEAT SOURCE/SINK (AND CHANGE IN FROZEN WATER CONTENT) C DUE TO POSSIBLE SOIL WATER PHASE CHANGE C ---------------------------------------------------------------------- IF ( (SICE .GT. 0.) .OR. (TSURF .LT. T0) .OR. & (STC(1) .LT. T0) .OR. (TBK .LT. T0) ) THEN IF (ITAVG) THEN CALL TMPAVG(TAVG,TSURF,STC(1),TBK,ZSOIL,NSOIL,1) ELSE TAVG = STC(1) ENDIF TSNSR = SNKSRC (TAVG,SMC(1),SH2O(1), & ZSOIL,NSOIL,SMCMAX,PSISAT,BEXP,DT,1,QTOT) RHSTS(1) = RHSTS(1) - TSNSR / ( ZSOIL(1) * HCPCT ) ENDIF C ---------------------------------------------------------------------- C THIS ENDS SECTION FOR TOP SOIL LAYER. C ---------------------------------------------------------------------- C INITIALIZE DDZ2 C ---------------------------------------------------------------------- DDZ2 = 0.0 C ---------------------------------------------------------------------- C LOOP THRU THE REMAINING SOIL LAYERS, REPEATING THE ABOVE PROCESS C (EXCEPT SUBSFC OR "GROUND" HEAT FLUX NOT REPEATED IN LOWER LAYERS) C ---------------------------------------------------------------------- DF1K = DF1 DO K = 2,NSOIL C ---------------------------------------------------------------------- C CALCULATE HEAT CAPACITY FOR THIS SOIL LAYER. C ---------------------------------------------------------------------- HCPCT = SH2O(K)*CH2O +(1.0-SMCMAX)*CSOIL +(SMCMAX-SMC(K))*CAIR & + ( SMC(K) - SH2O(K) )*CICE IF (K .NE. NSOIL) THEN C ---------------------------------------------------------------------- C THIS SECTION FOR LAYER 2 OR GREATER, BUT NOT LAST LAYER. C ---------------------------------------------------------------------- C CALCULATE THERMAL DIFFUSIVITY FOR THIS LAYER. C ---------------------------------------------------------------------- CALL TDFCND (DF1N,SMC(K),QUARTZ,SMCMAX,SH2O(K)) C ---------------------------------------------------------------------- C CALC THE VERTICAL SOIL TEMP GRADIENT THRU THIS LAYER C ---------------------------------------------------------------------- DENOM = 0.5 * ( ZSOIL(K-1) - ZSOIL(K+1) ) DTSDZ2 = ( STC(K) - STC(K+1) ) / DENOM C ---------------------------------------------------------------------- C CALC THE MATRIX COEF, CI, AFTER CALC'NG ITS PARTIAL PRODUCT C ---------------------------------------------------------------------- DDZ2 = 2. / (ZSOIL(K-1) - ZSOIL(K+1)) CI(K) = -DF1N * DDZ2 / ((ZSOIL(K-1) - ZSOIL(K)) * HCPCT) C ---------------------------------------------------------------------- C IF TEMPERATURE AVERAGING INVOKED (ITAVG=TRUE; ELSE SKIP): CALCULATE C TEMP AT BOTTOM OF LAYER. C ---------------------------------------------------------------------- IF (ITAVG) THEN CALL TBND (STC(K),STC(K+1),ZSOIL,ZBOT,K,NSOIL,TBK1) ENDIF ELSE C ---------------------------------------------------------------------- C SPECIAL CASE OF BOTTOM SOIL LAYER: CALCULATE THERMAL DIFFUSIVITY FOR C BOTTOM LAYER. C ---------------------------------------------------------------------- CALL TDFCND (DF1N,SMC(K),QUARTZ,SMCMAX,SH2O(K)) C ---------------------------------------------------------------------- C CALC THE VERTICAL SOIL TEMP GRADIENT THRU BOTTOM LAYER. C ---------------------------------------------------------------------- DENOM = .5 * (ZSOIL(K-1) + ZSOIL(K)) - ZBOT DTSDZ2 = (STC(K)-TBOT) / DENOM C ---------------------------------------------------------------------- C SET MATRIX COEF, CI TO ZERO IF BOTTOM LAYER. C ---------------------------------------------------------------------- CI(K) = 0. C ---------------------------------------------------------------------- C IF TEMPERATURE AVERAGING INVOKED (ITAVG=TRUE; ELSE SKIP): CALCULATE C TEMP AT BOTTOM OF LAST LAYER. C ---------------------------------------------------------------------- IF (ITAVG) THEN CALL TBND (STC(K),TBOT,ZSOIL,ZBOT,K,NSOIL,TBK1) ENDIF ENDIF C ---------------------------------------------------------------------- C THIS ENDS SPECIAL LOOP FOR BOTTOM LAYER. C ---------------------------------------------------------------------- C CALCULATE RHSTS FOR THIS LAYER AFTER CALC'NG A PARTIAL PRODUCT. C ---------------------------------------------------------------------- DENOM = ( ZSOIL(K) - ZSOIL(K-1) ) * HCPCT RHSTS(K) = ( DF1N * DTSDZ2 - DF1K * DTSDZ ) / DENOM QTOT = -1.0*DENOM*RHSTS(K) SICE = SMC(K) - SH2O(K) IF ( (SICE .GT. 0.) .OR. (TBK .LT. T0) .OR. & (STC(K) .LT. T0) .OR. (TBK1 .LT. T0) ) THEN IF (ITAVG) THEN CALL TMPAVG(TAVG,TBK,STC(K),TBK1,ZSOIL,NSOIL,K) ELSE TAVG = STC(K) ENDIF TSNSR = SNKSRC(TAVG,SMC(K),SH2O(K),ZSOIL,NSOIL, & SMCMAX,PSISAT,BEXP,DT,K,QTOT) RHSTS(K) = RHSTS(K) - TSNSR / DENOM ENDIF C ---------------------------------------------------------------------- C CALC MATRIX COEFS, AI, AND BI FOR THIS LAYER. C ---------------------------------------------------------------------- AI(K) = - DF1 * DDZ / ((ZSOIL(K-1) - ZSOIL(K)) * HCPCT) BI(K) = -(AI(K) + CI(K)) C ---------------------------------------------------------------------- C RESET VALUES OF DF1, DTSDZ, DDZ, AND TBK FOR LOOP TO NEXT SOIL LAYER. C ---------------------------------------------------------------------- TBK = TBK1 DF1K = DF1N DTSDZ = DTSDZ2 DDZ = DDZ2 END DO C ---------------------------------------------------------------------- C END SUBROUTINE HRT C ---------------------------------------------------------------------- RETURN END SUBROUTINE HRTICE (RHSTS,STC,NSOIL,ZSOIL,YY,ZZ1,DF1,AI,BI,CI) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE HRTICE C ---------------------------------------------------------------------- C CALCULATE THE RIGHT HAND SIDE OF THE TIME TENDENCY TERM OF THE SOIL C THERMAL DIFFUSION EQUATION IN THE CASE OF SEA-ICE PACK. ALSO TO C COMPUTE (PREPARE) THE MATRIX COEFFICIENTS FOR THE TRI-DIAGONAL MATRIX C OF THE IMPLICIT TIME SCHEME. C ---------------------------------------------------------------------- INTEGER NSOLD PARAMETER(NSOLD = 20) INTEGER K INTEGER NSOIL REAL AI(NSOLD) REAL BI(NSOLD) REAL CI(NSOLD) REAL DDZ REAL DDZ2 REAL DENOM REAL DF1 REAL DTSDZ REAL DTSDZ2 REAL HCPCT REAL RHSTS(NSOIL) REAL SSOIL REAL STC(NSOIL) REAL TBOT REAL YY REAL ZBOT REAL ZSOIL(NSOIL) REAL ZZ1 DATA TBOT /271.16/ C ---------------------------------------------------------------------- C SET A NOMINAL UNIVERSAL VALUE OF THE SEA-ICE SPECIFIC HEAT CAPACITY, C HCPCT = 1880.0*917.0. C ---------------------------------------------------------------------- PARAMETER(HCPCT = 1.72396E+6) C ---------------------------------------------------------------------- C THE INPUT ARGUMENT DF1 IS A UNIVERSALLY CONSTANT VALUE OF SEA-ICE C THERMAL DIFFUSIVITY, SET IN ROUTINE SNOPAC AS DF1 = 2.2. C ---------------------------------------------------------------------- C SET ICE PACK DEPTH. USE TBOT AS ICE PACK LOWER BOUNDARY TEMPERATURE C (THAT OF UNFROZEN SEA WATER AT BOTTOM OF SEA ICE PACK). ASSUME ICE C PACK IS OF N=NSOIL LAYERS SPANNING A UNIFORM CONSTANT ICE PACK C THICKNESS AS DEFINED BY ZSOIL(NSOIL) IN ROUTINE SFLX. C ---------------------------------------------------------------------- ZBOT = ZSOIL(NSOIL) C ---------------------------------------------------------------------- C CALC THE MATRIX COEFFICIENTS AI, BI, AND CI FOR THE TOP LAYER C ---------------------------------------------------------------------- DDZ = 1.0 / ( -0.5 * ZSOIL(2) ) AI(1) = 0.0 CI(1) = (DF1 * DDZ) / (ZSOIL(1) * HCPCT) BI(1) = -CI(1) + DF1/(0.5 * ZSOIL(1) * ZSOIL(1) * HCPCT * ZZ1) C ---------------------------------------------------------------------- C CALC THE VERTICAL SOIL TEMP GRADIENT BTWN THE TOP AND 2ND SOIL LAYERS. C RECALC/ADJUST THE SOIL HEAT FLUX. USE THE GRADIENT AND FLUX TO CALC C RHSTS FOR THE TOP SOIL LAYER. C ---------------------------------------------------------------------- DTSDZ = ( STC(1) - STC(2) ) / ( -0.5 * ZSOIL(2) ) SSOIL = DF1 * ( STC(1) - YY ) / ( 0.5 * ZSOIL(1) * ZZ1 ) RHSTS(1) = ( DF1 * DTSDZ - SSOIL ) / ( ZSOIL(1) * HCPCT ) C ---------------------------------------------------------------------- C INITIALIZE DDZ2 C ---------------------------------------------------------------------- DDZ2 = 0.0 C ---------------------------------------------------------------------- C LOOP THRU THE REMAINING SOIL LAYERS, REPEATING THE ABOVE PROCESS C ---------------------------------------------------------------------- DO K = 2,NSOIL IF (K .NE. NSOIL) THEN C ---------------------------------------------------------------------- C CALC THE VERTICAL SOIL TEMP GRADIENT THRU THIS LAYER. C ---------------------------------------------------------------------- DENOM = 0.5 * ( ZSOIL(K-1) - ZSOIL(K+1) ) DTSDZ2 = ( STC(K) - STC(K+1) ) / DENOM C ---------------------------------------------------------------------- C CALC THE MATRIX COEF, CI, AFTER CALC'NG ITS PARTIAL PRODUCT. C ---------------------------------------------------------------------- DDZ2 = 2. / (ZSOIL(K-1) - ZSOIL(K+1)) CI(K) = -DF1 * DDZ2 / ((ZSOIL(K-1) - ZSOIL(K)) * HCPCT) ELSE C ---------------------------------------------------------------------- C CALC THE VERTICAL SOIL TEMP GRADIENT THRU THE LOWEST LAYER. C ---------------------------------------------------------------------- DTSDZ2 = (STC(K)-TBOT)/(.5 * (ZSOIL(K-1) + ZSOIL(K))-ZBOT) C ---------------------------------------------------------------------- C SET MATRIX COEF, CI TO ZERO. C ---------------------------------------------------------------------- CI(K) = 0. ENDIF C ---------------------------------------------------------------------- C CALC RHSTS FOR THIS LAYER AFTER CALC'NG A PARTIAL PRODUCT. C ---------------------------------------------------------------------- DENOM = ( ZSOIL(K) - ZSOIL(K-1) ) * HCPCT RHSTS(K) = ( DF1 * DTSDZ2 - DF1 * DTSDZ ) / DENOM C ---------------------------------------------------------------------- C CALC MATRIX COEFS, AI, AND BI FOR THIS LAYER. C ---------------------------------------------------------------------- AI(K) = - DF1 * DDZ / ((ZSOIL(K-1) - ZSOIL(K)) * HCPCT) BI(K) = -(AI(K) + CI(K)) C ---------------------------------------------------------------------- C RESET VALUES OF DTSDZ AND DDZ FOR LOOP TO NEXT SOIL LYR. C ---------------------------------------------------------------------- DTSDZ = DTSDZ2 DDZ = DDZ2 END DO C ---------------------------------------------------------------------- C END SUBROUTINE HRTICE C ---------------------------------------------------------------------- RETURN END SUBROUTINE HSTEP (STCOUT,STCIN,RHSTS,DT,NSOIL,AI,BI,CI) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE HSTEP C ---------------------------------------------------------------------- C CALCULATE/UPDATE THE SOIL TEMPERATURE FIELD. C ---------------------------------------------------------------------- INTEGER NSOLD PARAMETER(NSOLD = 20) INTEGER K INTEGER NSOIL REAL AI(NSOLD) REAL BI(NSOLD) REAL CI(NSOLD) REAL CIin(NSOLD) REAL DT REAL RHSTS(NSOIL) REAL RHSTSin(NSOIL) REAL STCIN(NSOIL) REAL STCOUT(NSOIL) C ---------------------------------------------------------------------- C CREATE FINITE DIFFERENCE VALUES FOR USE IN ROSR12 ROUTINE C ---------------------------------------------------------------------- DO K = 1,NSOIL RHSTS(K) = RHSTS(K) * DT AI(K) = AI(K) * DT BI(K) = 1. + BI(K) * DT CI(K) = CI(K) * DT END DO C ---------------------------------------------------------------------- C COPY VALUES FOR INPUT VARIABLES BEFORE CALL TO ROSR12 C ---------------------------------------------------------------------- DO K = 1,NSOIL RHSTSin(K) = RHSTS(K) END DO DO K = 1,NSOLD CIin(K) = CI(K) END DO C ---------------------------------------------------------------------- C SOLVE THE TRI-DIAGONAL MATRIX EQUATION C ---------------------------------------------------------------------- CALL ROSR12(CI,AI,BI,CIin,RHSTSin,RHSTS,NSOIL) C ---------------------------------------------------------------------- C CALC/UPDATE THE SOIL TEMPS USING MATRIX SOLUTION C ---------------------------------------------------------------------- DO K = 1,NSOIL STCOUT(K) = STCIN(K) + CI(K) END DO C ---------------------------------------------------------------------- C END SUBROUTINE HSTEP C ---------------------------------------------------------------------- RETURN END SUBROUTINE NOPAC(ETP,ETA,PRCP,SMC,SMCMAX,SMCWLT, & SMCREF,SMCDRY,CMC,CMCMAX,NSOIL,DT,SHDFAC, & SBETA,Q2,T1,SFCTMP,T24,TH2,FDOWN,F1,SSOIL, & STC,EPSCA,BEXP,PC,RCH,RR,CFACTR, & SH2O,SLOPE,KDT,FRZFACT,PSISAT,ZSOIL, & DKSAT,DWSAT,TBOT,ZBOT,RUNOFF1,RUNOFF2, & RUNOFF3,EDIR,EC,ET,ETT,NROOT,ICE,RTDIS, & QUARTZ,FXEXP,CSOIL, & BETA,DRIP,DEW,FLX1,FLX2,FLX3) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE NOPAC C ---------------------------------------------------------------------- C CALCULATE SOIL MOISTURE AND HEAT FLUX VALUES AND UPDATE SOIL MOISTURE C CONTENT AND SOIL HEAT CONTENT VALUES FOR THE CASE WHEN NO SNOW PACK IS C PRESENT. C ---------------------------------------------------------------------- INTEGER ICE INTEGER NROOT INTEGER NSOIL REAL BEXP REAL BETA REAL CFACTR REAL CMC REAL CMCMAX REAL CP REAL CSOIL REAL DEW REAL DF1 REAL DKSAT REAL DRIP REAL DT REAL DWSAT REAL EC REAL EDIR REAL EPSCA REAL ETA REAL ETA1 REAL ETP REAL ETP1 REAL ET(NSOIL) REAL ETT REAL FDOWN REAL F1 REAL FXEXP REAL FLX1 REAL FLX2 REAL FLX3 REAL FRZFACT REAL KDT REAL PC REAL PRCP REAL PRCP1 REAL PSISAT REAL Q2 REAL QUARTZ REAL RCH REAL RR REAL RTDIS(NSOIL) REAL RUNOFF1 REAL RUNOFF2 REAL RUNOFF3 REAL SSOIL REAL SBETA REAL SFCTMP REAL SHDFAC REAL SH2O(NSOIL) REAL SIGMA REAL SLOPE REAL SMC(NSOIL) REAL SMCDRY REAL SMCMAX REAL SMCREF REAL SMCWLT REAL STC(NSOIL) REAL T1 REAL T24 REAL TBOT REAL TH2 REAL YY REAL YYNUM REAL ZBOT REAL ZSOIL(NSOIL) REAL ZZ1 PARAMETER(CP = 1004.5) PARAMETER(SIGMA = 5.67E-8) C ---------------------------------------------------------------------- C EXECUTABLE CODE BEGINS HERE: C CONVERT ETP FROM KG M-2 S-1 TO MS-1 AND INITIALIZE DEW. C ---------------------------------------------------------------------- PRCP1 = PRCP * 0.001 ETP1 = ETP * 0.001 DEW = 0.0 IF (ETP .GT. 0.0) THEN C ---------------------------------------------------------------------- C CONVERT PRCP FROM 'KG M-2 S-1' TO 'M S-1'. C ---------------------------------------------------------------------- CALL SMFLX (ETA1,SMC,NSOIL,CMC,ETP1,DT,PRCP1,ZSOIL, & SH2O,SLOPE,KDT,FRZFACT, & SMCMAX,BEXP,PC,SMCWLT,DKSAT,DWSAT, & SMCREF,SHDFAC,CMCMAX, & SMCDRY,CFACTR,RUNOFF1,RUNOFF2,RUNOFF3, & EDIR,EC,ET,ETT,SFCTMP,Q2,NROOT,RTDIS,FXEXP, & DRIP) C ---------------------------------------------------------------------- C CONVERT MODELED EVAPOTRANSPIRATION FM M S-1 TO KG M-2 S-1 C ---------------------------------------------------------------------- ETA = ETA1 * 1000.0 ELSE C ---------------------------------------------------------------------- C IF ETP < 0, ASSUME DEW FORMS (TRANSFORM ETP1 INTO DEW AND REINITIALIZE C ETP1 TO ZERO). C ---------------------------------------------------------------------- DEW = -ETP1 ETP1 = 0.0 C ---------------------------------------------------------------------- C CONVERT PRCP FROM 'KG M-2 S-1' TO 'M S-1' AND ADD DEW AMOUNT. C ---------------------------------------------------------------------- PRCP1 = PRCP1 + DEW C CALL SMFLX (ETA1,SMC,NSOIL,CMC,ETP1,DT,PRCP1,ZSOIL, & SH2O,SLOPE,KDT,FRZFACT, & SMCMAX,BEXP,PC,SMCWLT,DKSAT,DWSAT, & SMCREF,SHDFAC,CMCMAX, & SMCDRY,CFACTR,RUNOFF1,RUNOFF2,RUNOFF3, & EDIR,EC,ET,ETT,SFCTMP,Q2,NROOT,RTDIS,FXEXP, & DRIP) C ---------------------------------------------------------------------- C CONVERT MODELED EVAPOTRANSPIRATION FROM 'M S-1' TO 'KG M-2 S-1'. C ---------------------------------------------------------------------- ETA = ETA1 * 1000.0 ENDIF C ---------------------------------------------------------------------- C BASED ON ETP AND E VALUES, DETERMINE BETA C ---------------------------------------------------------------------- IF ( ETP .LE. 0.0 ) THEN BETA = 0.0 IF ( ETP .LT. 0.0 ) THEN BETA = 1.0 ETA = ETP ENDIF ELSE BETA = ETA / ETP ENDIF C ---------------------------------------------------------------------- C GET SOIL THERMAL DIFFUXIVITY/CONDUCTIVITY FOR TOP SOIL LYR, C CALC. ADJUSTED TOP LYR SOIL TEMP AND ADJUSTED SOIL FLUX, THEN C CALL SHFLX TO COMPUTE/UPDATE SOIL HEAT FLUX AND SOIL TEMPS. C ---------------------------------------------------------------------- CALL TDFCND (DF1,SMC(1),QUARTZ,SMCMAX,SH2O(1)) C ---------------------------------------------------------------------- C VEGETATION GREENNESS FRACTION REDUCTION IN SUBSURFACE HEAT FLUX C VIA REDUCTION FACTOR, WHICH IS CONVENIENT TO APPLY HERE TO THERMAL C DIFFUSIVITY THAT IS LATER USED IN HRT TO COMPUTE SUB SFC HEAT FLUX C (SEE ADDITIONAL COMMENTS ON VEG EFFECT SUB-SFC HEAT FLX IN C ROUTINE SFLX) C ---------------------------------------------------------------------- DF1 = DF1 * EXP(SBETA*SHDFAC) C ---------------------------------------------------------------------- C COMPUTE INTERMEDIATE TERMS PASSED TO ROUTINE HRT (VIA ROUTINE C SHFLX BELOW) FOR USE IN COMPUTING SUBSURFACE HEAT FLUX IN HRT C ---------------------------------------------------------------------- YYNUM = FDOWN - SIGMA * T24 YY = SFCTMP + (YYNUM/RCH+TH2-SFCTMP-BETA*EPSCA) / RR ZZ1 = DF1 / ( -0.5 * ZSOIL(1) * RCH * RR ) + 1.0 CALL SHFLX (SSOIL,STC,SMC,SMCMAX,NSOIL,T1,DT,YY,ZZ1,ZSOIL, & TBOT,ZBOT,SMCWLT,PSISAT,SH2O,BEXP,F1,DF1,ICE, & QUARTZ,CSOIL) C ---------------------------------------------------------------------- C SET FLX1 AND FLX3 (SNOPACK PHASE CHANGE HEAT FLUXES) TO ZERO SINCE C THEY ARE NOT USED HERE IN SNOPAC. FLX2 (FREEZING RAIN HEAT FLUX) WAS C SIMILARLY INITIALIZED IN THE PENMAN ROUTINE. C ---------------------------------------------------------------------- FLX1 = 0.0 FLX3 = 0.0 C ---------------------------------------------------------------------- C END SUBROUTINE NOPAC C ---------------------------------------------------------------------- RETURN END SUBROUTINE PENMAN (SFCTMP,SFCPRS,CH,T2V,TH2,PRCP,FDOWN,T24,SSOIL, & Q2,Q2SAT,ETP,RCH,EPSCA,RR,SNOWNG,FRZGRA, & DQSDT2,FLX2) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE PENMAN C ---------------------------------------------------------------------- C CALCULATE POTENTIAL EVAPORATION FOR THE CURRENT POINT. VARIOUS C PARTIAL SUMS/PRODUCTS ARE ALSO CALCULATED AND PASSED BACK TO THE C CALLING ROUTINE FOR LATER USE. C ---------------------------------------------------------------------- LOGICAL SNOWNG LOGICAL FRZGRA REAL A REAL BETA REAL CH REAL CP REAL CPH2O REAL CPICE REAL DELTA REAL DQSDT2 REAL ELCP REAL EPSCA REAL ETP REAL FDOWN REAL FLX2 REAL FNET REAL LSUBC REAL LSUBF REAL PRCP REAL Q2 REAL Q2SAT REAL R REAL RAD REAL RCH REAL RHO REAL RR REAL SSOIL REAL SFCPRS REAL SFCTMP REAL SIGMA REAL T24 REAL T2V REAL TH2 PARAMETER(CP = 1004.6) PARAMETER(CPH2O = 4.218E+3) PARAMETER(CPICE = 2.106E+3) PARAMETER(R = 287.04) PARAMETER(ELCP = 2.4888E+3) PARAMETER(LSUBF = 3.335E+5) PARAMETER(LSUBC = 2.501000E+6) PARAMETER(SIGMA = 5.67E-8) C ---------------------------------------------------------------------- C EXECUTABLE CODE BEGINS HERE: C ---------------------------------------------------------------------- FLX2 = 0.0 C ---------------------------------------------------------------------- C PREPARE PARTIAL QUANTITIES FOR PENMAN EQUATION. C ---------------------------------------------------------------------- DELTA = ELCP * DQSDT2 T24 = SFCTMP * SFCTMP * SFCTMP * SFCTMP RR = T24 * 6.48E-8 /(SFCPRS * CH) + 1.0 RHO = SFCPRS / (R * T2V) RCH = RHO * CP * CH C ---------------------------------------------------------------------- C ADJUST THE PARTIAL SUMS / PRODUCTS WITH THE LATENT HEAT C EFFECTS CAUSED BY FALLING PRECIPITATION. C ---------------------------------------------------------------------- IF (.NOT. SNOWNG) THEN IF (PRCP .GT. 0.0) RR = RR + CPH2O*PRCP/RCH ELSE RR = RR + CPICE*PRCP/RCH ENDIF FNET = FDOWN - SIGMA*T24 - SSOIL C ---------------------------------------------------------------------- C INCLUDE THE LATENT HEAT EFFECTS OF FRZNG RAIN CONVERTING TO ICE ON C IMPACT IN THE CALCULATION OF FLX2 AND FNET. C ---------------------------------------------------------------------- IF (FRZGRA) THEN FLX2 = -LSUBF * PRCP FNET = FNET - FLX2 ENDIF C ---------------------------------------------------------------------- C FINISH PENMAN EQUATION CALCULATIONS. C ---------------------------------------------------------------------- RAD = FNET/RCH + TH2 - SFCTMP A = ELCP * (Q2SAT - Q2) EPSCA = (A*RR + RAD*DELTA) / (DELTA + RR) ETP = EPSCA * RCH / LSUBC C ---------------------------------------------------------------------- C END SUBROUTINE PENMAN C ---------------------------------------------------------------------- RETURN END SUBROUTINE REDPRM ( & VEGTYP,SOILTYP,SLOPETYP, & CFACTR,CMCMAX,RSMAX,TOPT,REFKDT,KDT,SBETA, & SHDFAC,RSMIN,RGL,HS,ZBOT,FRZX,PSISAT,SLOPE, & SNUP,SALP,BEXP,DKSAT,DWSAT, & SMCMAX,SMCWLT,SMCREF, & SMCDRY,F1,QUARTZ,FXEXP,RTDIS,SLDPTH,ZSOIL, & NROOT,NSOIL,Z0,CZIL,LAI,CSOIL,PTU) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE REDPRM C ---------------------------------------------------------------------- C INTERNALLY SET (DEFAULT VALUESS), OR OPTIONALLY READ-IN VIA NAMELIST C I/O, ALL SOIL AND VEGETATION PARAMETERS REQUIRED FOR THE EXECUSION OF C THE NOAH LSM. C C OPTIONAL NON-DEFAULT PARAMETERS CAN BE READ IN, ACCOMMODATING UP TO 30 C SOIL, VEG, OR SLOPE CLASSES, IF THE DEFAULT MAX NUMBER OF SOIL, VEG, C AND/OR SLOPE TYPES IS RESET. C C FUTURE UPGRADES OF ROUTINE REDPRM MUST EXPAND TO INCORPORATE SOME OF C THE EMPIRICAL PARAMETERS OF THE FROZEN SOIL AND SNOWPACK PHYSICS (SUCH C AS IN ROUTINES FRH2O, SNOWPACK, AND SNOW_NEW) NOT YET SET IN THIS C REDPRM ROUTINE, BUT RATHER SET IN LOWER LEVEL SUBROUTINES. C C SET MAXIMUM NUMBER OF SOIL-, VEG-, AND SLOPETYP IN DATA STATEMENT. C ---------------------------------------------------------------------- INTEGER MAX_SLOPETYP INTEGER MAX_SOILTYP INTEGER MAX_VEGTYP PARAMETER(MAX_SLOPETYP = 30) PARAMETER(MAX_SOILTYP = 30) PARAMETER(MAX_VEGTYP = 30) C ---------------------------------------------------------------------- C NUMBER OF DEFINED SOIL-, VEG-, AND SLOPETYPS USED. C ---------------------------------------------------------------------- INTEGER DEFINED_VEG INTEGER DEFINED_SOIL INTEGER DEFINED_SLOPE DATA DEFINED_VEG/13/ DATA DEFINED_SOIL/9/ DATA DEFINED_SLOPE/9/ C ---------------------------------------------------------------------- C SET-UP SOIL PARAMETERS FOR GIVEN SOIL TYPE C INPUT: SOLTYP: SOIL TYPE (INTEGER INDEX) C OUTPUT: SOIL PARAMETERS: C MAXSMC: MAX SOIL MOISTURE CONTENT (POROSITY) C REFSMC: REFERENCE SOIL MOISTURE (ONSET OF SOIL MOISTURE C STRESS IN TRANSPIRATION) C WLTSMC: WILTING PT SOIL MOISTURE CONTENTS C DRYSMC: AIR DRY SOIL MOIST CONTENT LIMITS C SATPSI: SATURATED SOIL POTENTIAL C SATDK: SATURATED SOIL HYDRAULIC CONDUCTIVITY C BB: THE 'B' PARAMETER C SATDW: SATURATED SOIL DIFFUSIVITY C F11: USED TO COMPUTE SOIL DIFFUSIVITY/CONDUCTIVITY C QUARTZ: SOIL QUARTZ CONTENT C ---------------------------------------------------------------------- C SOIL TYPES ZOBLER (1986) COSBY ET AL (1984) (quartz cont.(1)) C 1 COARSE LOAMY SAND (0.82) C 2 MEDIUM SILTY CLAY LOAM (0.10) C 3 FINE LIGHT CLAY (0.25) C 4 COARSE-MEDIUM SANDY LOAM (0.60) C 5 COARSE-FINE SANDY CLAY (0.52) C 6 MEDIUM-FINE CLAY LOAM (0.35) C 7 COARSE-MED-FINE SANDY CLAY LOAM (0.60) C 8 ORGANIC LOAM (0.40) C 9 GLACIAL LAND ICE LOAMY SAND (NA using 0.82) C ---------------------------------------------------------------------- REAL BB(MAX_SOILTYP) REAL DRYSMC(MAX_SOILTYP) REAL F11(MAX_SOILTYP) REAL MAXSMC(MAX_SOILTYP) REAL REFSMC(MAX_SOILTYP) REAL SATPSI(MAX_SOILTYP) REAL SATDK(MAX_SOILTYP) REAL SATDW(MAX_SOILTYP) REAL WLTSMC(MAX_SOILTYP) REAL QTZ(MAX_SOILTYP) REAL BEXP REAL DKSAT REAL DWSAT REAL F1 REAL PTU REAL QUARTZ REAL REFSMC1 REAL SMCDRY REAL SMCMAX REAL SMCREF REAL SMCWLT REAL WLTSMC1 C ---------------------------------------------------------------------- C SOIL TEXTURE-RELATED ARRAYS. C ---------------------------------------------------------------------- DATA MAXSMC/0.421, 0.464, 0.468, 0.434, 0.406, 0.465, & 0.404, 0.439, 0.421, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ DATA SATPSI/0.04, 0.62, 0.47, 0.14, 0.10, 0.26, & 0.14, 0.36, 0.04, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00/ DATA SATDK /1.41E-5, 0.20E-5, 0.10E-5, 0.52E-5, 0.72E-5, & 0.25E-5, 0.45E-5, 0.34E-5, 1.41E-5, 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00/ DATA BB /4.26, 8.72, 11.55, 4.74, 10.73, 8.17, & 6.77, 5.25, 4.26, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00/ DATA QTZ /0.82, 0.10, 0.25, 0.60, 0.52, 0.35, & 0.60, 0.40, 0.82, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00/ C C ---------------------------------------------------------------------- C THE FOLLOWING 5 PARAMETERS ARE DERIVED LATER IN REDPRM.F FROM THE SOIL C DATA, AND ARE JUST GIVEN HERE FOR REFERENCE AND TO FORCE STATIC C STORAGE ALLOCATION. -DAG LOHMANN, FEB. 2001 C ---------------------------------------------------------------------- C DATA REFSMC/0.283, 0.387, 0.412, 0.312, 0.338, 0.382, C & 0.315, 0.329, 0.283, 0.000, 0.000, 0.000, C !!!!!!!!!!!!!! The following values in the table are NOT used C !!!!!!!!!!!!!! and are just given for reference DATA REFSMC/0.248, 0.368, 0.398, 0.281, 0.321, 0.361, & 0.293, 0.301, 0.248, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ C !!!!!!!!!!!!!! The following values in the table are NOT used C !!!!!!!!!!!!!! and are just given for reference DATA WLTSMC/0.029, 0.119, 0.139, 0.047, 0.100, 0.103, & 0.069, 0.066, 0.029, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ C !!!!!!!!!!!!!! The following values in the table are NOT used C !!!!!!!!!!!!!! and are just given for reference DATA DRYSMC/0.029, 0.119, 0.139, 0.047, 0.100, 0.103, & 0.069, 0.066, 0.029, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ C !!!!!!!!!!!!!! The following values in the table are NOT used C !!!!!!!!!!!!!! and are just given for reference DATA SATDW /5.71E-6, 2.33E-5, 1.16E-5, 7.95E-6, 1.90E-5, & 1.14E-5, 1.06E-5, 1.46E-5, 5.71E-6, 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00, & 0.00 , 0.00 , 0.00 , 0.00 , 0.00/ C !!!!!!!!!!!!!! The following values in the table are NOT used C !!!!!!!!!!!!!! and are just given for reference DATA F11 /-0.999, -1.116, -2.137, -0.572, -3.201, -1.302, & -1.519, -0.329, -0.999, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ C ---------------------------------------------------------------------- C SET-UP VEGETATION PARAMETERS FOR A GIVEN VEGETAION TYPE: C INPUT: VEGTYP = VEGETATION TYPE (INTEGER INDEX) C OUPUT: VEGETATION PARAMETERS C SHDFAC: VEGETATION GREENNESS FRACTION C RSMIN: MIMIMUM STOMATAL RESISTANCE C RGL: PARAMETER USED IN SOLAR RAD TERM OF C CANOPY RESISTANCE FUNCTION C HS: PARAMETER USED IN VAPOR PRESSURE DEFICIT TERM OF C CANOPY RESISTANCE FUNCTION C SNUP: THRESHOLD SNOW DEPTH (IN WATER EQUIVALENT M) THAT C IMPLIES 100% SNOW COVER C ---------------------------------------------------------------------- C SSIB VEGETATION TYPES (DORMAN AND SELLERS, 1989; JAM) C 1: BROADLEAF-EVERGREEN TREES (TROPICAL FOREST) C 2: BROADLEAF-DECIDUOUS TREES C 3: BROADLEAF AND NEEDLELEAF TREES (MIXED FOREST) C 4: NEEDLELEAF-EVERGREEN TREES C 5: NEEDLELEAF-DECIDUOUS TREES (LARCH) C 6: BROADLEAF TREES WITH GROUNDCOVER (SAVANNA) C 7: GROUNDCOVER ONLY (PERENNIAL) C 8: BROADLEAF SHRUBS WITH PERENNIAL GROUNDCOVER C 9: BROADLEAF SHRUBS WITH BARE SOIL C 10: DWARF TREES AND SHRUBS WITH GROUNDCOVER (TUNDRA) C 11: BARE SOIL C 12: CULTIVATIONS (THE SAME PARAMETERS AS FOR TYPE 7) C 13: GLACIAL (THE SAME PARAMETERS AS FOR TYPE 11) C ---------------------------------------------------------------------- INTEGER NROOT INTEGER NROOT_DATA(MAX_VEGTYP) REAL FRZFACT REAL HS REAL HSTBL(MAX_VEGTYP) REAL LAI REAL LAI_DATA(MAX_VEGTYP) REAL PSISAT REAL RSMIN REAL RGL REAL RGLTBL(MAX_VEGTYP) REAL RSMTBL(MAX_VEGTYP) REAL SHDFAC REAL SNUP REAL SNUPX(MAX_VEGTYP) REAL Z0 REAL Z0_DATA(MAX_VEGTYP) C ---------------------------------------------------------------------- C VEGETATION CLASS-RELATED ARRAYS C ---------------------------------------------------------------------- DATA NROOT_DATA /4,4,4,4,4,4,3,3,3,2,3,3,2,0,0, & 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0/ DATA RSMTBL /150.0, 100.0, 125.0, 150.0, 100.0, 70.0, & 40.0, 300.0, 400.0, 150.0, 400.0, 40.0, & 150.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0/ DATA RGLTBL /30.0, 30.0, 30.0, 30.0, 30.0, 65.0, & 100.0, 100.0, 100.0, 100.0, 100.0, 100.0, & 100.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0/ DATA HSTBL /41.69, 54.53, 51.93, 47.35, 47.35, 54.53, & 36.35, 42.00, 42.00, 42.00, 42.00, 36.35, & 42.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, & 0.00, 0.00, 0.00, 0.00, 0.00, 0.00/ C changed for version 2.6 on June 2nd 2003 C DATA SNUPX /0.080, 0.080, 0.080, 0.080, 0.080, 0.080, C & 0.040, 0.040, 0.040, 0.040, 0.025, 0.040, C & 0.025, 0.000, 0.000, 0.000, 0.000, 0.000, DATA SNUPX /0.040, 0.040, 0.040, 0.040, 0.040, 0.040, * 0.020, 0.020, 0.020, 0.020, 0.013, 0.020, * 0.013, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ DATA Z0_DATA /2.653, 0.826, 0.563, 1.089, 0.854, 0.856, & 0.035, 0.238, 0.065, 0.076, 0.011, 0.035, & 0.011, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, & 0.000, 0.000, 0.000, 0.000, 0.000, 0.000/ DATA LAI_DATA /5.0, 5.0, 5.0, 5.0, 5.0, 5.0, & 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, & 5.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0, 0.0, 0.0, 0.0, 0.0, 0.0/ C ---------------------------------------------------------------------- C CLASS PARAMETER 'SLOPETYP' WAS INCLUDED TO ESTIMATE LINEAR RESERVOIR C COEFFICIENT 'SLOPE' TO THE BASEFLOW RUNOFF OUT OF THE BOTTOM LAYER. C LOWEST CLASS (SLOPETYP=0) MEANS HIGHEST SLOPE PARAMETER = 1. C DEFINITION OF SLOPETYP FROM 'ZOBLER' SLOPE TYPE: C SLOPE CLASS PERCENT SLOPE C 1 0-8 C 2 8-30 C 3 > 30 C 4 0-30 C 5 0-8 & > 30 C 6 8-30 & > 30 C 7 0-8, 8-30, > 30 C 9 GLACIAL ICE C BLANK OCEAN/SEA C ---------------------------------------------------------------------- C NOTE: C CLASS 9 FROM 'ZOBLER' FILE SHOULD BE REPLACED BY 8 AND 'BLANK' 9 C ---------------------------------------------------------------------- REAL SLOPE REAL SLOPE_DATA(MAX_SLOPETYP) DATA SLOPE_DATA /0.1, 0.6, 1.0, 0.35, 0.55, 0.8, & 0.63, 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0 , 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0 , 0.0, 0.0, 0.0, 0.0, 0.0, & 0.0 , 0.0, 0.0, 0.0, 0.0, 0.0/ C ---------------------------------------------------------------------- C SET NAMELIST FILE NAME C ---------------------------------------------------------------------- CHARACTER*50 NAMELIST_NAME C ---------------------------------------------------------------------- C SET UNIVERSAL PARAMETERS (NOT DEPENDENT ON SOIL, VEG, SLOPE TYPE) C ---------------------------------------------------------------------- INTEGER I INTEGER NSOIL INTEGER SLOPETYP INTEGER SOILTYP INTEGER VEGTYP INTEGER BARE DATA BARE /11/ LOGICAL LPARAM DATA LPARAM /.TRUE./ LOGICAL LFIRST DATA LFIRST /.TRUE./ C ---------------------------------------------------------------------- C PARAMETER USED TO CALCULATE ROUGHNESS LENGTH OF HEAT. C ---------------------------------------------------------------------- REAL CZIL REAL CZIL_DATA C changed in version 2.6 June 2nd 2003 C DATA CZIL_DATA /0.2/ DATA CZIL_DATA /0.075/ C ---------------------------------------------------------------------- C PARAMETER USED TO CALUCULATE VEGETATION EFFECT ON SOIL HEAT FLUX. C ---------------------------------------------------------------------- REAL SBETA REAL SBETA_DATA DATA SBETA_DATA /-2.0/ C ---------------------------------------------------------------------- C BARE SOIL EVAPORATION EXPONENT USED IN DEVAP. C ---------------------------------------------------------------------- REAL FXEXP REAL FXEXP_DATA DATA FXEXP_DATA /2.0/ C ---------------------------------------------------------------------- C SOIL HEAT CAPACITY [J M-3 K-1] C ---------------------------------------------------------------------- REAL CSOIL REAL CSOIL_DATA C DATA CSOIL_DATA /1.26E+6/ DATA CSOIL_DATA /2.00E+6/ C ---------------------------------------------------------------------- C SPECIFY SNOW DISTRIBUTION SHAPE PARAMETER SALP - SHAPE PARAMETER OF C DISTRIBUTION FUNCTION OF SNOW COVER. FROM ANDERSON'S DATA (HYDRO-17) C BEST FIT IS WHEN SALP = 2.6 C ---------------------------------------------------------------------- REAL SALP REAL SALP_DATA C changed for version 2.6 June 2nd 2003 C DATA SALP_DATA /2.6/ DATA SALP_DATA /4.0/ C ---------------------------------------------------------------------- C KDT IS DEFINED BY REFERENCE REFKDT AND DKSAT; REFDK=2.E-6 IS THE SAT. C DK. VALUE FOR THE SOIL TYPE 2 C ---------------------------------------------------------------------- REAL REFDK REAL REFDK_DATA DATA REFDK_DATA /2.0E-6/ REAL REFKDT REAL REFKDT_DATA DATA REFKDT_DATA /3.0/ REAL FRZX REAL KDT C ---------------------------------------------------------------------- C FROZEN GROUND PARAMETER, FRZK, DEFINITION: ICE CONTENT THRESHOLD ABOVE C WHICH FROZEN SOIL IS IMPERMEABLE REFERENCE VALUE OF THIS PARAMETER FOR C THE LIGHT CLAY SOIL (TYPE=3) FRZK = 0.15 M. C ---------------------------------------------------------------------- REAL FRZK REAL FRZK_DATA DATA FRZK_DATA /0.15/ REAL RTDIS(NSOIL) REAL SLDPTH(NSOIL) REAL ZSOIL(NSOIL) C ---------------------------------------------------------------------- C SET TWO CANOPY WATER PARAMETERS. C ---------------------------------------------------------------------- REAL CFACTR REAL CFACTR_DATA DATA CFACTR_DATA /0.5/ REAL CMCMAX REAL CMCMAX_DATA DATA CMCMAX_DATA /0.5E-3/ C ---------------------------------------------------------------------- C SET MAX. STOMATAL RESISTANCE. C ---------------------------------------------------------------------- REAL RSMAX REAL RSMAX_DATA DATA RSMAX_DATA /5000.0/ C ---------------------------------------------------------------------- C SET OPTIMUM TRANSPIRATION AIR TEMPERATURE. C ---------------------------------------------------------------------- REAL TOPT REAL TOPT_DATA DATA TOPT_DATA /298.0/ C ---------------------------------------------------------------------- C SPECIFY DEPTH[M] OF LOWER BOUNDARY SOIL TEMPERATURE. C ---------------------------------------------------------------------- REAL ZBOT REAL ZBOT_DATA C changed for version 2.6 C DATA ZBOT_DATA /-3.0/ DATA ZBOT_DATA /-8.0/ C ---------------------------------------------------------------------- C SET TWO SOIL MOISTURE WILT, SOIL MOISTURE REFERENCE PARAMETERS C ---------------------------------------------------------------------- REAL SMLOW REAL SMLOW_DATA DATA SMLOW_DATA /0.5/ REAL SMHIGH REAL SMHIGH_DATA C changed in 2.6 from 3 to 6 on June 2nd 2003 C DATA SMHIGH_DATA /3.0/ DATA SMHIGH_DATA /6.0/ C ---------------------------------------------------------------------- C NAMELIST DEFINITION: C ---------------------------------------------------------------------- NAMELIST /SOIL_VEG/ SLOPE_DATA, RSMTBL, RGLTBL, HSTBL, SNUPX, & BB, DRYSMC, F11, MAXSMC, REFSMC, SATPSI, SATDK, SATDW, & WLTSMC, QTZ, LPARAM, ZBOT_DATA, SALP_DATA, CFACTR_DATA, & CMCMAX_DATA, SBETA_DATA, RSMAX_DATA, TOPT_DATA, & REFDK_DATA, FRZK_DATA, BARE, DEFINED_VEG, DEFINED_SOIL, & DEFINED_SLOPE, FXEXP_DATA, NROOT_DATA, REFKDT_DATA, Z0_DATA, & CZIL_DATA, LAI_DATA, CSOIL_DATA C ---------------------------------------------------------------------- C READ NAMELIST FILE TO OVERRIDE DEFAULT PARAMETERS ONLY ONCE. C NAMELIST_NAME must be 50 characters or less. C ---------------------------------------------------------------------- IF (LFIRST) THEN WRITE(*,*) 'READ NAMELIST' C OPEN(58, FILE = 'namelist_filename.txt') C READ(58,'(A)') NAMELIST_NAME C CLOSE(58) C WRITE(*,*) 'Namelist Filename is ', NAMELIST_NAME C OPEN(59, FILE = NAMELIST_NAME) C 50 CONTINUE C READ(59, SOIL_VEG, END=100) C IF (LPARAM) GOTO 50 C 100 CONTINUE C CLOSE(59) WRITE(*,NML=SOIL_VEG) LFIRST = .FALSE. IF (DEFINED_SOIL .GT. MAX_SOILTYP) THEN WRITE(*,*) 'Warning: DEFINED_SOIL too large in namelist' STOP 222 ENDIF IF (DEFINED_VEG .GT. MAX_VEGTYP) THEN WRITE(*,*) 'Warning: DEFINED_VEG too large in namelist' STOP 222 ENDIF IF (DEFINED_SLOPE .GT. MAX_SLOPETYP) THEN WRITE(*,*) 'Warning: DEFINED_SLOPE too large in namelist' STOP 222 ENDIF SMLOW = SMLOW_DATA SMHIGH = SMHIGH_DATA DO I = 1,DEFINED_SOIL SATDW(I) = BB(I)*SATDK(I)*(SATPSI(I)/MAXSMC(I)) F11(I) = ALOG10(SATPSI(I)) + BB(I)*ALOG10(MAXSMC(I)) + 2.0 REFSMC1 = MAXSMC(I)*(5.79E-9/SATDK(I)) & **(1.0/(2.0*BB(I)+3.0)) REFSMC(I) = REFSMC1 + (MAXSMC(I)-REFSMC1) / SMHIGH WLTSMC1 = MAXSMC(I) * (200.0/SATPSI(I))**(-1.0/BB(I)) WLTSMC(I) = WLTSMC1 - SMLOW * WLTSMC1 C ---------------------------------------------------------------------- C CURRENT VERSION DRYSMC VALUES THAT EQUATE TO WLTSMC. C FUTURE VERSION COULD LET DRYSMC BE INDEPENDENTLY SET VIA NAMELIST. C ---------------------------------------------------------------------- DRYSMC(I) = WLTSMC(I) END DO C ---------------------------------------------------------------------- C END LFIRST BLOCK C ---------------------------------------------------------------------- ENDIF IF (SOILTYP .GT. DEFINED_SOIL) THEN WRITE(*,*) 'Warning: too many soil types' STOP 333 ENDIF IF (VEGTYP .GT. DEFINED_VEG) THEN WRITE(*,*) 'Warning: too many veg types' STOP 333 ENDIF IF (SLOPETYP .GT. DEFINED_SLOPE) THEN WRITE(*,*) 'Warning: too many slope types' STOP 333 ENDIF C ---------------------------------------------------------------------- C SET-UP UNIVERSAL PARAMETERS (NOT DEPENDENT ON SOILTYP, VEGTYP OR C SLOPETYP) C ---------------------------------------------------------------------- ZBOT = ZBOT_DATA SALP = SALP_DATA CFACTR = CFACTR_DATA CMCMAX = CMCMAX_DATA SBETA = SBETA_DATA RSMAX = RSMAX_DATA TOPT = TOPT_DATA REFDK = REFDK_DATA FRZK = FRZK_DATA FXEXP = FXEXP_DATA REFKDT = REFKDT_DATA CZIL = CZIL_DATA CSOIL = CSOIL_DATA C ---------------------------------------------------------------------- C SET-UP SOIL PARAMETERS C ---------------------------------------------------------------------- BEXP = BB(SOILTYP) DKSAT = SATDK(SOILTYP) DWSAT = SATDW(SOILTYP) F1 = F11(SOILTYP) KDT = REFKDT * DKSAT/REFDK PSISAT = SATPSI(SOILTYP) QUARTZ = QTZ(SOILTYP) SMCDRY = DRYSMC(SOILTYP) SMCMAX = MAXSMC(SOILTYP) SMCREF = REFSMC(SOILTYP) SMCWLT = WLTSMC(SOILTYP) FRZFACT = (SMCMAX / SMCREF) * (0.412 / 0.468) C ---------------------------------------------------------------------- C TO ADJUST FRZK PARAMETER TO ACTUAL SOIL TYPE: FRZK * FRZFACT C ---------------------------------------------------------------------- FRZX = FRZK * FRZFACT C ---------------------------------------------------------------------- C SET-UP VEGETATION PARAMETERS C ---------------------------------------------------------------------- NROOT = NROOT_DATA(VEGTYP) SNUP = SNUPX(VEGTYP) RSMIN = RSMTBL(VEGTYP) RGL = RGLTBL(VEGTYP) HS = HSTBL(VEGTYP) Z0 = Z0_DATA(VEGTYP) LAI = LAI_DATA(VEGTYP) IF (VEGTYP .EQ. BARE) SHDFAC = 0.0 IF (NROOT .GT. NSOIL) THEN WRITE(*,*) 'Warning: too many root layers' STOP 333 ENDIF C ---------------------------------------------------------------------- C CALCULATE ROOT DISTRIBUTION. PRESENT VERSION ASSUMES UNIFORM C DISTRIBUTION BASED ON SOIL LAYER DEPTHS. C ---------------------------------------------------------------------- DO I = 1,NROOT RTDIS(I) = -SLDPTH(I)/ZSOIL(NROOT) END DO C ---------------------------------------------------------------------- C SET-UP SLOPE PARAMETER C ---------------------------------------------------------------------- SLOPE = SLOPE_DATA(SLOPETYP) C ---------------------------------------------------------------------- C END SUBROUTINE REDPRM C ---------------------------------------------------------------------- RETURN END SUBROUTINE ROSR12 (P,A,B,C,D,DELTA,NSOIL) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE ROSR12 C ---------------------------------------------------------------------- C INVERT (SOLVE) THE TRI-DIAGONAL MATRIX PROBLEM SHOWN BELOW: C ### ### ### ### ### ### C #B(1), C(1), 0 , 0 , 0 , . . . , 0 # # # # # C #A(2), B(2), C(2), 0 , 0 , . . . , 0 # # # # # C # 0 , A(3), B(3), C(3), 0 , . . . , 0 # # # # D(3) # C # 0 , 0 , A(4), B(4), C(4), . . . , 0 # # P(4) # # D(4) # C # 0 , 0 , 0 , A(5), B(5), . . . , 0 # # P(5) # # D(5) # C # . . # # . # = # . # C # . . # # . # # . # C # . . # # . # # . # C # 0 , . . . , 0 , A(M-2), B(M-2), C(M-2), 0 # #P(M-2)# #D(M-2)# C # 0 , . . . , 0 , 0 , A(M-1), B(M-1), C(M-1)# #P(M-1)# #D(M-1)# C # 0 , . . . , 0 , 0 , 0 , A(M) , B(M) # # P(M) # # D(M) # C ### ### ### ### ### ### C ---------------------------------------------------------------------- INTEGER K INTEGER KK INTEGER NSOIL REAL A(NSOIL) REAL B(NSOIL) REAL C(NSOIL) REAL D(NSOIL) REAL DELTA(NSOIL) REAL P(NSOIL) C ---------------------------------------------------------------------- C INITIALIZE EQN COEF C FOR THE LOWEST SOIL LAYER C ---------------------------------------------------------------------- C(NSOIL) = 0.0 C ---------------------------------------------------------------------- C SOLVE THE COEFS FOR THE 1ST SOIL LAYER C ---------------------------------------------------------------------- P(1) = -C(1) / B(1) DELTA(1) = D(1) / B(1) C ---------------------------------------------------------------------- C SOLVE THE COEFS FOR SOIL LAYERS 2 THRU NSOIL C ---------------------------------------------------------------------- DO K = 2,NSOIL P(K) = -C(K) * ( 1.0 / (B(K) + A (K) * P(K-1)) ) DELTA(K) = (D(K)-A(K)*DELTA(K-1))*(1.0/(B(K)+A(K)*P(K-1))) END DO C ---------------------------------------------------------------------- C SET P TO DELTA FOR LOWEST SOIL LAYER C ---------------------------------------------------------------------- P(NSOIL) = DELTA(NSOIL) C ---------------------------------------------------------------------- C ADJUST P FOR SOIL LAYERS 2 THRU NSOIL C ---------------------------------------------------------------------- DO K = 2,NSOIL KK = NSOIL - K + 1 P(KK) = P(KK) * P(KK+1) + DELTA(KK) END DO C ---------------------------------------------------------------------- C END SUBROUTINE ROSR12 C ---------------------------------------------------------------------- RETURN END SUBROUTINE SFCDIF (ZLM,Z0,THZ0,THLM,SFCSPD,CZIL,AKMS,AKHS) IMPLICIT NONE C ---------------------------------------------------------------------- C SUBROUTINE SFCDIF C ---------------------------------------------------------------------- C CALCULATE SURFACE LAYER EXCHANGE COEFFICIENTS VIA ITERATIVE PROCESS. C SEE CHEN ET AL (1997, BLM) C ---------------------------------------------------------------------- REAL WWST, WWST2, G, VKRM, EXCM, BETA, BTG, ELFC, WOLD, WNEW REAL PIHF, EPSU2, EPSUST, EPSIT, EPSA, ZTMIN, ZTMAX, HPBL, SQVISC REAL RIC, RRIC, FHNEU, RFC, RFAC, ZZ, PSLMU, PSLMS, PSLHU, PSLHS REAL XX, PSPMU, YY, PSPMS, PSPHU, PSPHS, ZLM, Z0, THZ0, THLM REAL SFCSPD, CZIL, AKMS, AKHS, ZILFC, ZU, ZT, RDZ, CXCH REAL DTHV, DU2, BTGH, WSTAR2, USTAR, ZSLU, ZSLT, RLOGU, RLOGT REAL RLMO, ZETALT, ZETALU, ZETAU, ZETAT, XLU4, XLT4, XU4, XT4 REAL XLU, XLT, XU, XT, PSMZ, SIMM, PSHZ, SIMH, USTARK, RLMN, RLMA CCC ......REAL ZTFC INTEGER ITRMX, ILECH, ITR PARAMETER & (WWST=1.2,WWST2=WWST*WWST,G=9.8,VKRM=0.40,EXCM=0.001 & ,BETA=1./270.,BTG=BETA*G,ELFC=VKRM*BTG & ,WOLD=.15,WNEW=1.-WOLD,ITRMX=05,PIHF=3.14159265/2.) C ---------------------------------------------------------------------- PARAMETER & (EPSU2=1.E-4,EPSUST=0.07,EPSIT=1.E-4,EPSA=1.E-8 & ,ZTMIN=-5.,ZTMAX=1.,HPBL=1000.0 & ,SQVISC=258.2) C ---------------------------------------------------------------------- PARAMETER & (RIC=0.183,RRIC=1.0/RIC,FHNEU=0.8,RFC=0.191 & ,RFAC=RIC/(FHNEU*RFC*RFC)) C ---------------------------------------------------------------------- C NOTE: THE TWO CODE BLOCKS BELOW DEFINE FUNCTIONS C ---------------------------------------------------------------------- C LECH'S SURFACE FUNCTIONS C ---------------------------------------------------------------------- PSLMU(ZZ)=-0.96*log(1.0-4.5*ZZ) PSLMS(ZZ)=ZZ*RRIC-2.076*(1.-1./(ZZ+1.)) PSLHU(ZZ)=-0.96*log(1.0-4.5*ZZ) PSLHS(ZZ)=ZZ*RFAC-2.076*(1.-1./(ZZ+1.)) C ---------------------------------------------------------------------- C PAULSON'S SURFACE FUNCTIONS C ---------------------------------------------------------------------- PSPMU(XX)=-2.*log((XX+1.)*0.5)-log((XX*XX+1.)*0.5)+2.*ATAN(XX) & -PIHF PSPMS(YY)=5.*YY PSPHU(XX)=-2.*log((XX*XX+1.)*0.5) PSPHS(YY)=5.*YY C ---------------------------------------------------------------------- C THIS ROUTINE SFCDIF CAN HANDLE BOTH OVER OPEN WATER (SEA, OCEAN) AND C OVER SOLID SURFACE (LAND, SEA-ICE). C ---------------------------------------------------------------------- ILECH=0 C ---------------------------------------------------------------------- C ZTFC: RATIO OF ZOH/ZOM LESS OR EQUAL THAN 1 C C......ZTFC=0.1 C CZIL: CONSTANT C IN Zilitinkevich, S. S.1995,:NOTE ABOUT ZT C ---------------------------------------------------------------------- ZILFC=-CZIL*VKRM*SQVISC C ---------------------------------------------------------------------- ZU=Z0 C C.......ZT=Z0*ZTFC RDZ=1./ZLM CXCH=EXCM*RDZ DTHV=THLM-THZ0 DU2=MAX(SFCSPD*SFCSPD,EPSU2) C ---------------------------------------------------------------------- C BELJARS CORRECTION OF USTAR C ---------------------------------------------------------------------- BTGH=BTG*HPBL ccc If statements to avoid TANGENT LINEAR problems near zero IF (BTGH*AKHS*DTHV .NE. 0.0) THEN WSTAR2=WWST2*ABS(BTGH*AKHS*DTHV)**(2./3.) ELSE WSTAR2=0.0 ENDIF USTAR=MAX(SQRT(AKMS*SQRT(DU2+WSTAR2)),EPSUST) C ---------------------------------------------------------------------- C ZILITINKEVITCH APPROACH FOR ZT C ---------------------------------------------------------------------- ZT=EXP(ZILFC*SQRT(USTAR*Z0))*Z0 C ---------------------------------------------------------------------- ZSLU=ZLM+ZU ZSLT=ZLM+ZT C PRINT*,'ZSLT=',ZSLT C PRINT*,'ZLM=',ZLM C PRINT*,'ZT=',ZT C RLOGU=log(ZSLU/ZU) RLOGT=log(ZSLT/ZT) C RLMO=ELFC*AKHS*DTHV/USTAR**3 C PRINT*,'RLMO=',RLMO C PRINT*,'ELFC=',ELFC C PRINT*,'AKHS=',AKHS C PRINT*,'DTHV=',DTHV C PRINT*,'USTAR=',USTAR DO ITR=1,ITRMX C ---------------------------------------------------------------------- C 1./MONIN-OBUKKHOV LENGTH-SCALE C ---------------------------------------------------------------------- ZETALT=MAX(ZSLT*RLMO,ZTMIN) RLMO=ZETALT/ZSLT ZETALU=ZSLU*RLMO ZETAU=ZU*RLMO ZETAT=ZT*RLMO IF(ILECH.EQ.0) THEN IF(RLMO.LT.0.)THEN XLU4=1.-16.*ZETALU XLT4=1.-16.*ZETALT XU4 =1.-16.*ZETAU XT4 =1.-16.*ZETAT XLU=SQRT(SQRT(XLU4)) XLT=SQRT(SQRT(XLT4)) XU =SQRT(SQRT(XU4)) XT =SQRT(SQRT(XT4)) PSMZ=PSPMU(XU) C PRINT*,'-----------1------------' C PRINT*,'PSMZ=',PSMZ C PRINT*,'PSPMU(ZETAU)=',PSPMU(ZETAU) C PRINT*,'XU=',XU C PRINT*,'------------------------' SIMM=PSPMU(XLU)-PSMZ+RLOGU PSHZ=PSPHU(XT) SIMH=PSPHU(XLT)-PSHZ+RLOGT ELSE ZETALU=MIN(ZETALU,ZTMAX) ZETALT=MIN(ZETALT,ZTMAX) PSMZ=PSPMS(ZETAU) C PRINT*,'-----------2------------' C PRINT*,'PSMZ=',PSMZ C PRINT*,'PSPMS(ZETAU)=',PSPMS(ZETAU) C PRINT*,'ZETAU=',ZETAU C PRINT*,'------------------------' SIMM=PSPMS(ZETALU)-PSMZ+RLOGU PSHZ=PSPHS(ZETAT) SIMH=PSPHS(ZETALT)-PSHZ+RLOGT ENDIF ELSE C ---------------------------------------------------------------------- C LECH'S FUNCTIONS C ---------------------------------------------------------------------- IF(RLMO.LT.0.)THEN PSMZ=PSLMU(ZETAU) C PRINT*,'-----------3------------' C PRINT*,'PSMZ=',PSMZ C PRINT*,'PSLMU(ZETAU)=',PSLMU(ZETAU) C PRINT*,'ZETAU=',ZETAU C PRINT*,'------------------------' SIMM=PSLMU(ZETALU)-PSMZ+RLOGU PSHZ=PSLHU(ZETAT) SIMH=PSLHU(ZETALT)-PSHZ+RLOGT ELSE ZETALU=MIN(ZETALU,ZTMAX) ZETALT=MIN(ZETALT,ZTMAX) C PSMZ=PSLMS(ZETAU) C PRINT*,'-----------4------------' C PRINT*,'PSMZ=',PSMZ C PRINT*,'PSLMS(ZETAU)=',PSLMS(ZETAU) C PRINT*,'ZETAU=',ZETAU C PRINT*,'------------------------' SIMM=PSLMS(ZETALU)-PSMZ+RLOGU PSHZ=PSLHS(ZETAT) SIMH=PSLHS(ZETALT)-PSHZ+RLOGT ENDIF ENDIF C ---------------------------------------------------------------------- C BELJAARS CORRECTION FOR USTAR C ---------------------------------------------------------------------- USTAR=MAX(SQRT(AKMS*SQRT(DU2+WSTAR2)),EPSUST) C ---------------------------------------------------------------------- C ZILITINKEVITCH FIX FOR ZT C ---------------------------------------------------------------------- ZT=EXP(ZILFC*SQRT(USTAR*Z0))*Z0 ZSLT=ZLM+ZT RLOGT=log(ZSLT/ZT) C----------------------------------------------------------------------- USTARK=USTAR*VKRM AKMS=MAX(USTARK/SIMM,CXCH) AKHS=MAX(USTARK/SIMH,CXCH) C----------------------------------------------------------------------- C IF STATEMENTS TO AVOID TANGENT LINEAR PROBLEMS NEAR ZERO C----------------------------------------------------------------------- IF (BTGH*AKHS*DTHV .NE. 0.0) THEN WSTAR2=WWST2*ABS(BTGH*AKHS*DTHV)**(2./3.) ELSE WSTAR2=0.0 ENDIF RLMN=ELFC*AKHS*DTHV/USTAR**3 C----------------------------------------------------------------------- RLMA=RLMO*WOLD+RLMN*WNEW C----------------------------------------------------------------------- C IF(ABS((RLMN-RLMO)/RLMA).LT.EPSIT) GO TO 110 C----------------------------------------------------------------------- RLMO=RLMA C----------------------------------------------------------------------- END DO C PRINT*,'----------------------------' C PRINT*,'SFCDIF OUTPUT ! ! ! ! ! ! ! ! ! ! ! !' C C PRINT*,'ZLM=',ZLM C PRINT*,'Z0=',Z0 C PRINT*,'THZ0=',THZ0 C PRINT*,'THLM=',THLM C PRINT*,'SFCSPD=',SFCSPD C PRINT*,'CZIL=',CZIL C PRINT*,'AKMS=',AKMS C PRINT*,'AKHS=',AKHS C PRINT*,'----------------------------' C C ---------------------------------------------------------------------- C END SUBROUTINE SFCDIF C ---------------------------------------------------------------------- RETURN END