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