Creates an analysis ready sentinel-1 SAR image collection in Google Earth Engine by applying additional border noise correction, speckle filtering and radiometric terrain normalization.
There was an error in the calculation of the aspect and heading angle. The original implementation in (Hoekman and Reiche 2015) expects angles from -180 to 180, while the aspect computed in GEE is from 0 to 360. In addition, the aspect angle on GEE seems downhill directed, while it should be uphill.
As a result, the correction factor needs to be multiplied by gamma0 instead of being divided.
There was an error in the calculation of the aspect and heading angle. The original implementation in (Hoekman and Reiche 2015) expects angles from -180 to 180, while the aspect computed in GEE is from 0 to 360. In addition, the aspect angle on GEE seems downhill directed, while it should be uphill.
As a result, the correction factor needs to be multiplied by gamma0 instead of being divided.
All this is corrected in the updated version.