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Please note that ISCCP data processing is now performed at NOAA/NCEI.
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Calibration Coefficients NOAA-8

NOAA-8 Normalized and Absolute calibration coefficients for VIS scaled radiance (0 to 1, AVHRR Channel 1). The Absolute coefficients combine all ISCCP calibration adjustments, including the aircraft calibration.

---------------------------------------------------------
  DATE     NORMALIZATION    ABSOLUTE     TOTAL CORRECTION
YYYYMMDD   Slope   Intc   Slope   Intc     Slope   Intc  
--------   -------------  -------------  ----------------

19831031  0.966   0.000   1.192   0.002   1.151   0.002
19831130  0.966   0.000   1.194   0.002   1.153   0.002
19831231  0.966   0.000   1.195   0.002   1.154   0.002
19840131  0.966   0.000   1.197   0.002   1.156   0.002
19840229  0.966   0.000   1.199   0.002   1.158   0.002
19840331  0.966   0.000   1.200   0.002   1.159   0.002
19840430  0.966   0.000   1.202   0.002   1.161   0.002
19840531  0.966   0.000   1.204   0.002   1.163   0.002
19840630  0.966   0.000   1.206   0.002   1.165   0.002
---------------------------------------------------------

NOAA-8: Normalized and Absolute calibration coefficients for IR brightness temperature in Kelvin (AVHRR Channel 4). The Absolute coefficients combine all ISCCP calibration adjustments, including the aircraft calibration.

---------------------------------------------------------
  DATE     NORMALIZATION    ABSOLUTE     TOTAL CORRECTION
YYYYMMDD   Slope   Intc   Slope   Intc     Slope   Intc  
--------   -------------  -------------  ----------------

19831031   1.030  -9.000   1.000   0.000   1.030  -9.000
    :        :       :      :       :        :       :   
19840630   1.030  -9.000   1.000   0.000   1.030  -9.000
---------------------------------------------------------

ISCCP Calibration Coefficients