#earthobservation
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From eomasters.org
EOMasters Blog: Sentinel-2 Geometry Up-scaling
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The view and sun geometry angles provided with an Earth observation scene are important for numerous applications. Like atmospheric correction, surface reflectance normalisation and others.Unfortunately, this information is not directly accessible for Sentinel-2 data. The angles are stored on a...
#java #esa_snap #sentinel2 #remotesensing #earthobservation
8h ago
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From eomasters.org
EOMasters Blog: Normalisation of Surface Reflectance for Sentinel-2
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There are other implementations which are doing a surface reflectance normalisation using the c-factor method, but I found (SEN2NBAR, SentinelHub) those don't use the detector footprints. But these detector footprints need to be used per reflectance band to calculate the view azimuth and zenith...
#esa_snap #sentinel2 #earthobservation
5h ago