Merge 2 adjacent Sentinel-1 Swaths

snap
1

Dear all,

I am trying to merge two adjacent Sentinel-1 images (Swaths) into 1. I know it is possible to do so when the two images pertains to the same track using the Slice Assembly. I also know it would be possible to merge different sub-swaths using Merge. However, in my case, I need to merge two different swaths (from 2 different traks) with are laterally overlapping as in the screenshot here attached.

overlap

I need to perform this prior or just after the interferogram formation since then I would compute the unwrapping phase and all the other steps to obtain LOS maps.

Is there any solution to do so?

2

@jun_lu could you help?

3

I don’t think current SNAP can merge two swaths from different tracks. I think it’s better to process the two swaths separately (i.e. interferogram, unwrapping, and other steps), and merge the final result using coregistration or other tool.

4

Dear Jun Lu,
thanks for the reply.
But it would not be a problem to merge after the unwrapping? For what I not is better is the unwrapping is perform using continuous data since it could give different results for one image and the other.