Negative dem elevation values

Hello sir,
Can you please tell in brief
the Reasons and InSAR errors :- for the features not matching in ascending and descending phases interferogram

Hi @ABraun. From your suggestions I tried a bit the Alaska Satellite Facility website to download data. From there, you can click on the baseline link.

It opens a new windows with all the suitable pairs for InSAR (suitable in the sence that you can perform insar). It displays a graph with, among other, the perpendicular baseline. From there it is easy to select the pairs with a big enough perpendicular baseline

Hope it can be useful

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