[GIS] How to remove ‘no data’ values in sentinel 1 data? – Sentinel Toolbox

Question

I hope anyone can help with this issue:
I am using the Sentinel Toolbox to preprocess Sentinel 1 GRDH scenes. Managed to radiometric calibrate, conduct radiometric terrain flattening and geometric terrain correction in a batch script. Now I want to mosaic these 66 scenes which also basically works. Unfortunately at the left and right borders of the scenes there are very low values (here called 'no dada' values) which I cannot remove. There is a tool called 'S-1 Remove GRD Border Noise'. But applied it does not change anything.

Answer 1

if all of these pixels are of the same value you can edit the no-data value under preferences (right-click the corresponding raster) and save the dataset. The should subsequently no longer be included in the mosaic (red box). If the pixels are of different values you can specify a valid pixel expression to exclude a whole range of values from the mosaic (blue box).

I tried it myself and it seems to work.