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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     1     17    14.330       -9.99990     1.63860     1.52110     1.46770     1.25900     1.04260     0.91280    -9.99990     0.84900    -9.99990    -9.99990   
 L1.50    2011     1     17    14.500       -9.99990     1.26920     1.16350     1.11500     0.91650     0.69650     0.55710    -9.99990     0.48810    -9.99990    -9.99990   
 L1.50    2011     1     17    15.000       -9.99990     1.09830     0.99300     0.94470     0.74460     0.52240     0.38760    -9.99990     0.32640    -9.99990    -9.99990