MODIS Viewing geometry problem - sampling
The percent of total observations of clear (blue), high cloud (green) and
total cloud (red) as a function of MODIS fov size. Smaller FOVs are more
likely to be all clear or all cloud cover.
![](FOV_dependance.gif)
Nadir only sampling yields large regional errors in cloud fraction.
![](MODIS_nadir_all_zonal.gif)
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