Does the date-line cross the image? If yes, we have more than one open ticket about issues related to that I think.
I guess so, yes.
Is this issue newer or established? I’m basing my work off a process that someone did for this area in 2017-18 and she apparently didn’t have problems.
What Map projection did you use when you ran TC and GG? Thanks
I used Stereographic South Pole
I think the problem was caused by that the product crosses the 180th meridian. Because of that, part of the geocoding of the product is incorrect which leads to the artifacts in the Terrain Corrected image.
This is a known issue and has not been fixed. Post of similar problem can be found at Terrain corrected S1 data crossing the antimeridian are shifted into the Western Hemisphere. The issue has been tracked by ticket https://senbox.atlassian.net/browse/SITBX-647.
If you can create a subset of the image and make sure it does not cross the 180th meridian, then the processing result should be fine
That is possible. However, I spoke with the person who has processed the images from the years before and some of 2019 and they did not have this problem. Communication is limited with them which is why they haven’t been able to help me resolve this.
That being said: I don’t think there is an issue with the image but potentially a setting in the software or a step that I am failing to take while working with the data. I have uninstalled and reinstalled SNAP software but still got the issue. I think there is something I am missing and I don’t know what!
We figured it out: it only occurs in the latest version (7) of the software. It does not have this problem in version 6.