1870-1879 MONTHLY VOLCANIC FORCING IN 45-DEGREE-LAT BANDS FROM N TO S 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 5 5 6 6 7 5 4 4 4 4 4 4 5 5 6 6 7 5 4 4 4 4 4 4 5 5 6 6 7 5 4 4 4 4 4 4 5 5 6 6 7 7 8 8 9 9 9 11 13 15 17 19 21 7 8 8 9 9 9 11 13 15 17 19 21 7 8 8 9 9 9 11 13 15 17 19 21 7 8 8 9 9 9 11 13 15 17 19 21 23 25 27 29 31 33 33 32 31 30 28 27 23 25 27 29 31 33 33 32 31 30 28 27 23 25 27 29 31 33 33 32 31 30 28 27 23 25 27 29 31 33 33 32 31 30 28 27 26 24 23 22 21 19 17 15 12 9 7 4 26 24 23 22 21 19 17 15 12 9 7 4 26 24 23 22 21 19 17 15 12 9 7 4 26 24 23 22 21 19 17 15 12 9 7 4 5 1 1 1 1 1 1 1 20 50 79 109 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 139 168 198 228 257 287 298 291 283 276 269 261 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 254 247 239 232 225 217 210 202 194 186 177 169 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 161 153 145 137 129 121 115 112 108 105 101 98 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 94 91 88 84 81 77 74 71 68 65 61 58 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ----- ----- ----- ----- ----- NOTE: data in (12 months) by (4 lat-zones) by (10 years) to get actual values of optical depth use a factor of 1.e-4