DEM for the Coastal Areas

Hi Everyone,

I am going to do an InSAR time series analysis for a coastal city but I am not happy with the DEM files which I checked from different sources. Does anybody have any suggestions for DEM in the coastal areas?
I do really appreciate it if you shared your experiences in this area.


There is a DEM which was optimized for coastal regions: Climate Central
But it is openly available at only 90m resolutions. Still probably the best you can get for this purpose.

Thank you for your suggestion. I will try to check it.