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Deriving Albedo from Coupled MERIS and MODIS Surface Products

Deriving Albedo from Coupled MERIS and MODIS Surface Products. Feng Gao, Crystal Schaaf, Yufang Jin, Wolfgang Lucht, Alan Strahler. MERIS. MODIS. Red band. April 24, 2003 @ 10 am. April 24, 2003 @ 10:30 am. Albedo Algorithm. Magnitude BRDF Inversion requires:

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Deriving Albedo from Coupled MERIS and MODIS Surface Products

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  1. Deriving Albedo from Coupled MERIS and MODIS Surface Products Feng Gao, Crystal Schaaf, Yufang Jin, Wolfgang Lucht, Alan Strahler MERIS MODIS Red band April 24, 2003 @ 10 am April 24, 2003 @ 10:30 am

  2. Albedo Algorithm • Magnitude BRDF Inversion requires: A priori BRDF (ancillary data) + BRF observations (MERIS) • Approach A -- uses land cover based BRDF shape each land surface type shares a BRDF shape easier to implement • Approach B -- uses concurrent MODIS BRDF shape each pixel has an unique BRDF shape from MODIS BRDF products better BRDF presentation at pixel level • Products: BRDF parameters, albedo, nadir BRDF-adjusted reflectance

  3. Preliminary Results shortwave broadband albedo Desert Rock SURFRAD

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