Polarimetric decomposition

[ABraun]

maybe this helps you:

H alpha decomposition in SNAP

Maybe not related to your question: Why do you reproject after Terrain Correction? You could directly use the desired coordinate reference system in the TC module. About the result: Sentinel-1 has only 2 polarizations. It is currently discussed if this is enough for a decomposition which was originally based on quad-pol data. Most studies indicate that the quality is lower than for quad-polarized data: [image] Sources:

Hh polarisation

what data are you using? In the case you downloaded Sentinel-1 (VV and VH): Polarisations cannot be generated, they are a product of sensor configuration. If no horizontal waves were emmitted by the satellite at the time of image aquisition, it is impossible to get HH information from it. Sentinel-1 (and many other SAR satellites) only operates in single or dual polarisation. For the polarimetric matrix generation you need quad-polarized data (HH/HV/VH/VV) which is acquired by only few SAR sat…