Atmospheric turbidity data from Syowa Station (archive) File name : tbyyyy.spr (yyyy: year) File information: Atmospheric turbidity for each year Data file format: The data for each element are allocated in a line. Details of elements and data are as follows (e.g., Jan, 2007): 1: Daily Summaries of Atmospheric Turbidity (Syowa) January 2007 2: 3: : A.M.(1) A.M.(2) NOON P.M.(1) P.M.(2) : 4: DATE: hhmm iii ppppp mmm ttt hhmm iii ppppp mmm ttt hhmm iii ppppp mmm ttt hhmm iii ppppp mmm ttt hhmm iii ppppp mmm ttt: Mean (N) 5: 6: 01/01: 1045 103 9811 150 237 1225 104 9806 144 241 1405 103 9802 150 238 1805 92 9789 252 219: 234 (4) 7: 01/02: 646 95 9788 252 203 1048 106 9793 150 219 1225 104 9793 144 237 1403 105 9790 150 225 1805 93 9785 253 215: 220 (5) 8: 01/03: 647 93 9815 253 212 1050 104 9825 150 232 1226 104 9827 144 235 1402 103 9832 150 236 1804 89 9844 252 233: 230 (5) 9: 01/04: 1053 102 9859 150 246 1226 103 9855 144 248 1400 102 9848 150 246 1803 90 9831 252 232: 243 (4) 10: 01/05: 650 86 9818 253 253 1803 88 9822 253 241: 247 (2) 11: 01/06: 1059 101 9850 150 251 1227 102 9851 145 252 : 252 (2) 12: 01/07: : 13: 01/08: : 14: 01/09: : 15: 01/10: 1758 89 9943 252 232: 232 (1) 16: 01/11: 1119 102 9968 150 242 1229 103 9966 147 243 1340 102 9963 150 242 1757 91 9946 252 223: 238 (4) 17: 01/12: : 18: 01/13: 1230 101 9816 148 253 : 253 (1) 19: 01/14: : 20: 01/15: 1144 102 9810 150 243 1230 102 9808 149 244 1318 102 9807 150 244 : 244 (3) 21: 01/16: : 22: 01/17: : 23: 01/18: : 24: 01/19: : 25: 01/20: : 26: 01/21: 603 85 9927 358 199 724 95 9921 252 203 1232 105 9893 152 217 1741 94 9841 253 209 1901 84 9825 357 209: 207 (5) 27: 01/22: : 28: 01/23: : 29: 01/24: 1855 79 9854 358 230: 230 (1) 30: 01/25: : 31: 01/26: : 32: 01/27: : 33: 01/28: 623 81 9897 357 218 1234 101 9924 158 240 1725 90 9919 253 225 1845 82 9913 358 217: 225 (4) 34: 01/29: 626 81 9894 357 219 1234 101 9889 159 239 1722 90 9860 252 226 1842 81 9853 357 222: 227 (4) 35: 01/30: : 36: 01/31: 1235 101 9882 161 235 : 235 (1) 37: 38: MEAN: 217 234 240 232 225: 234 39: NUM: 6 8 12 9 11: 15 40: S.D: 19 16 9 12 10: 12 41: MAX: 253 251 253 246 241: 253 42: MIN: 199 203 217 209 209: 207 43: Information in each line: 1: Month, year 3: A.M.(1), A.M.(2), NOON, P.M.(1), P.M.(2) A.M.(1) : Observation in the morning with reliable data. A.M.(2) : Same as above, but mmm is less than the A.M.(1) value. NOON : Observation at noon P.M.(1) : Observation in the afternoon (mmm is less than the P.M.(2) value.) P.M.(2) : Same as above, but observation in the afternoon with reliable data. 4: hhmm, iii, ppppp, ttt, Mean (N) hhmm : Local time (UTC + 3 hr at Japanese Antarctic stations) iii : Direct solar radiation expressed in 0.01 kW/m2 ppppp : Station pressure expressed in 0.1 hPa mmm : Relative optical air mass expressed in 0.01 ttt : Feussner and Dubois' turbidity coefficients expressed in 0.01 Mean (N) : Average of Feussner and Dubois' turbidity coefficients (N: number of observations) 6 - 36: Data for each item 38 - 42: MEAN : Average of summaries of Feussner and Dubois' turbidity coefficients NUM : Number of observations of Feussner and Dubois' turbidity coefficients S.D : Standard deviation of Feussner and Dubois' turbidity coefficients MAX : Maximum value of Feussner and Dubois' turbidity coefficients MIN : Minimum value of Feussner and Dubois' turbidity coefficients