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V005 MODIS Terra+Aqua BRDF Shape Indices
The table below lists the four BRDF_Shape_Indicators included with the MCD43B1 BRDF/Albedo Model Parameters product. This information is excerpted from the file specifications for V005 MCD43B1 found at ftp://modular.nascom.nasa.gov/pub/LatestFilespecs/collection5/.
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BRDF_Shape_Indicators (All shape indicators are only applied to the pixels with full inversion) |
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Num_Shape_Fields #1 |
the NIR band ratio of nadir to 45 degree forward scattering at 45 degrees sun angle |
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Num_Shape_Fields #2 |
the NIR band ratio of white-sky albedo to BRDF isotropic parameter value. |
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Num_Shape_Fields #3 |
normalized difference anisotropy index (NDAX) at 45 degrees sun angle. NDAX=(ANIX_red-ANIX_nir) / (ANIX_red+ANIX_nir) |
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Num_Shape_Fields #4 |
structural scattering index (SSI) SSI = ln (f_vol_nir/f_geo_red) |
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