Earthdata Forum

Hello Everyone,
I'm working in coastal subsidence using InSAR. I have generated SBAS InSAR using ISCE-2 and processed time series with MintPy. I have done this for Indian coastal cities where there is no GNSS stations to validate my findings. Can i do with the ICESat topography points, Is there any other product can i use it to validate.
Any replies would be greatly appreciated!...

Hello,

If I understand your question correctly, you are asking what data might be good/useful for validating your ISCE-2 InSAR analysis outputs. You are already aware of ICESat-2, but may be asking for the particular data products from this mission that could help in coastal subsidence evaluation? Here are some data sets that may be what you need:

Elevations for coastal land - ATL06 is the "land ice" elevation product from ICESat-2, but provides global land elevation:
https://nsidc.org/data/atl06

Elevations for bathymetry in coastal areas - ATL24 is a newer product that may be useful to you:
https://nsidc.org/data/atl24

You can spatially subset these data to the regions you need through various methods. There is a platform called OpenAltimetry for exploring ATL06 that is a nice place to start to see the coverage available (unfortunately ATL24 is not on it yet):

https://openaltimetry.earthdatacloud.nasa.gov/data/

You can also use the other tools on the data set landing pages providing above to explore the data. NASA's Earthdata Search allows for spatial & temporal subsetting of both ATL06 and ATL24. There are, of course, programmatic methods to retrieve the data.

Please take a look at the landing pages and see if this helps with your question. Happy to help further if you need more assistance.

Kind regards,
Diane