I’m not an expert for volcanoes, sorry. I recommend comparing your results to some of the published results for similar volcano types (strato, shield or dome volcano). It depends on what kind of displacement you expect with respect to the looking direction. A general uplift, a redistribution of materials, a tilting of the volcano? Each of them results in different fringe patterns.
It also makes a difference if there is a caldera or not.
If you are only interested in the area within the blue circle, I recommend to clip the interferogram before unwrapping.
The smaller the proportion of noisy areas, the lower is the chance for false patterns induced by vegetated areas.
Now, I just noticed that my area of interest moved to another location. I have given the master and slave images of one region (North Germany)(blue arrow) but after back geocoding it moved to another location (Northern Italy)(red arrow)
. How is it possible? whether the automatic DEM downloaded wrongly while processing?
I use python 3.9.10.
master image: S1A_IW_SLC__1SDV_20210715T165853_20210715T165920_038791_0493BD_BCC7.SAFE
I also downloaded the orbit files by pyrosar and saved in proper location.
Yes, but both of my two input SLC images are from northern Germany and I don’t know how that intensity image went to Italian alps. When I was running the code, simultaneously in the folder ‘.snap/auxdata/dem/SRTM 1sec HGT’ I got, SRTM- N45E011, N45E012, N45E013 and N46E012, N46E013 .hgt files, which are not related to my input images
instead of getting the series of N52… .hgt files
So I don’t know, why I am getting another region DEM instead of the right one. I believe that this should be reason for my wrong coherence image.