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                      Aerosol optical thicknesses at different wavelengths measured by Prede sky radiometer (POM-02)
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                                                Observation area (Lon., Lat.):             "HEFEI"(117.173E,31.897N)
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                                                Serial number of an instrument:                "PS1307901
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NOTATIONS:
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                                               (i)   Data analysis software (SKYRAD.pack)        : version4.2
                                               (ii)  Cloud screening software (CSSR)	       : version1.0
                                               (iii) Assumed refractive index for data analysis  : 1.50-0.005i
                                               (iii) Gobal irradiance data for cloud screening   : Applied (if Level is L1.50), Not applied (if Level is L1.30)
                                               (iv)  -9.99999                                    : Data not available
 
 
                                                Channel no.               Wavelength(um)
                                                -----------               --------------
                                                     1                         0.315
                                                     2                         0.340
                                                     3                         0.380
                                                     4                         0.400
                                                     5                         0.500
                                                     6                         0.675
                                                     7                         0.870
                                                     8                         0.940
                                                     9                         1.020
                                                    10                         1.627
                                                    11                         2.200
 
 
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 Level    Year   Month   Day   Hour(LT)         AOT(Ch. 1)  AOT(Ch. 2)  AOT(Ch. 3)  AOT(Ch. 4)  AOT(Ch. 5)  AOT(Ch. 6)  AOT(Ch. 7)  AOT(Ch. 8)  AOT(Ch. 9)  AOT(Ch.10)  AOT(Ch.11) 
                                                                                                                                                                                   
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 L1.50    2011     2     11    11.330           -9.99990     1.04870     0.95970     0.91780     0.73810     0.53110     0.40540    -9.99990     0.34970    -9.99990    -9.99990   
 L1.50    2011     2     11    11.500           -9.99990     1.02380     0.93610     0.89520     0.72200     0.52350     0.40060    -9.99990     0.34450    -9.99990    -9.99990   
 L1.50    2011     2     11    11.670           -9.99990     1.05320     0.95670     0.91330     0.73710     0.54230     0.41900    -9.99990     0.35970    -9.99990    -9.99990