Root causes analysis of the discrepancy in AOD Between GOES-EAST and WEST
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Root causes analysis of the discrepancy in AOD Between GOES-EAST and WEST. Root Causes. 1. Calibration difference shouldn’t have diurnal dependency 2. Cloud detection difference 3. Surface reflectance 4. viewing geometry

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Root causes
Root Causes GOES-EAST and WEST

  • 1. Calibration difference

    shouldn’t have diurnal dependency

  • 2. Cloud detection difference

  • 3. Surface reflectance

  • 4. viewing geometry

  • Sensitivity to AOD is reduced considerably when higher surface reflectance is combined with backward scattered direction, i.e., AM for EAST and PM for WEST

    eastwest


Root causes analysis of the discrepancy in aod between goes east and west

6.2 (72) GOES-EAST and WEST

7.2 (61)

5.7 LST (sza=78)

9.2(38)

10.2(28)

12.2 (17)

13.2 (23)

15.7(50)

15.2 (44)

Surface reflectance, RAZ=RAZ


Root causes analysis of the discrepancy in aod between goes east and west

6.2 (72) GOES-EAST and WEST

7.2 (61)

5.7 LST (sza=78)

9.2(38)

10.2(28)

12.2 (17)

13.2 (23)

15.2 (44)

15.7(50)

AOD , RAZ=RAZ



Root causes analysis of the discrepancy in aod between goes east and west

Scattering angle~46 105W)

Scattering angle~111


Root causes analysis of the discrepancy in aod between goes east and west

Surface=0.05 105W)

GOES Ch1 TOA reflectance