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umr-lops / xsar

Synthetic Aperture Radar (SAR) Level-1 GRD python mapper for efficient xarray/dask based processing
https://cyclobs.ifremer.fr/static/sarwing_datarmor/xsar/
MIT License
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Revision of nrcs correction #40

Open vincelhx opened 2 years ago

vincelhx commented 2 years ago

We need to remember that nrcs correction in xsar is not done as in sarwing.

oarcher commented 2 years ago

This is due to noise removal, where sarwing is applying a 0.7 dB shift on some ipf products.

There is a python library that recompute better noise that we should use in the future: https://github.com/nansencenter/sentinel1denoised