Wind Field Retrieval Result Report - Same location but different wind speed estimates

Microwave Toolbox
#1

Hello,

After processing the wind field estimation of a SAR image and looked into the Wind Field Retrieval Report, I noticed that there are certain wind speeds attributed to the same location (i.e. different wind speeds for the same latitude and longitude).

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Is solving this issue as simple as selecting either of the two? If so, what should be my basis for the selection?

Thanks!

ocean wind retrieval from S-1
#2

Hello all,

Same issue here, and in top of that directions sometimes are different to in the same location.

I read on Wind Field estimator bad performance for strong winds (S1A data) that S1 Wind Field algorithm development has stopped.
Do you think that SNAP is a reliable tool to generate Winds from S1 imagery?

Thanks in advance

SM

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#3

From what I know, the algorithm is not exactly suitable for S1. I would recommend other implementations, that can get far more reliable. Take a look here: https://github.com/nansencenter/openwind. This algorithm also uses some improvements brought by Mouche et al., 2012. There is a new CMOD7 (openwind uses CMOD5), but I guess once you get the idea, you can modify the CMOD file source. Working on that, I’ll come back with updates if succeeded.

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