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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      7    10.170         -9.99990     2.32430     2.27540     2.23790     1.97610     1.46590     1.03110    -9.99990     0.80110    -9.99990    -9.99990  
 L1.50    2011     2      7    10.330         -9.99990     2.43680     2.40150     2.36870     2.11270     1.57890     1.11170    -9.99990     0.86240    -9.99990    -9.99990  
 L1.50    2011     2      7    10.500         -9.99990     2.46050     2.41440     2.37740     2.10970     1.57370     1.11020    -9.99990     0.86310    -9.99990    -9.99990  
 L1.50    2011     2      7    11.170         -9.99990     2.40860     2.35520     2.31680     2.05690     1.55330     1.11530    -9.99990     0.87740    -9.99990    -9.99990  
 L1.50    2011     2      7    11.330         -9.99990     2.57020     2.54680     2.52200     2.30490     1.79560     1.31210    -9.99990     1.04270    -9.99990    -9.99990