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 PowerPoint PPT Presentation


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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 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 analysis of the discrepancy in AOD Between GOES-EAST and WEST


Root causes

Root Causes

  • 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)

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)

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

Viewing geometry of GOES-EAST and WEST at Boulder (40N, 105W)


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

Scattering angle~46

Scattering angle~111


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

Surface=0.05

GOES Ch1 TOA reflectance


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