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Sentinel1 co-registrate question in order to make offset tracking?

Added by alain an over 5 years ago

Hello, everyone. I new user of GAMMA to make offset tracking in Antarctic velocity?
If we haven't DEM (.hgt file),so I can't use S1_coreg_TOPS scripts and how can I make co-registrate images to co-registrae.


Replies (4)

Sentinel1 co-registrate question in order to make offset tracking? - Added by Charles Werner over 5 years ago

Hello,
You can try entering giving constant value for the average height of the region,
rather than the name of the height file. This is an option in the script.
Read the documentation.

There are, however now DEMS available of Antarctica, that you should be able to
resample and use.  That will take some work.
https://www.gislounge.com/high-resolution-dem-antarctica-released/

First you need to terrain geocode the reference scene using a DEM, even at lower
resolution.

best regards,
Charles

RE: Sentinel1 co-registrate question in order to make offset tracking? - Added by alain an over 5 years ago

Thank you. I have used constant heights to co-registrate to replace the hgt file. It have issues about my GAMMA version (20160625) about S1_coreg_TOPS scripts. Do you share an valid S1_coreg_TOPS scripts?

20190615_20190621.coreg_quality (3.15 KB) 20190615_20190621.coreg_quality

RE: Sentinel1 co-registrate question in order to make offset tracking? - Added by Charles Werner over 5 years ago

Hello,
You can address your questions concerning the script and getting a new version,
over private email to . There were issues specifically on
windows.

Best regards,
Charles

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