Actualités
[CFOSAT] AWWAIS v7.1 main evolutions
Dear user,
Please note that for version 7.1 in production from 2025/02/18 to 2025/04/23, the SNR threshold has been modified from 1.1 to 0.7 for the combined beam only and not for the 10° beam. Since 2025/04/23 7:18, and following the correction of the speckle model described in the previous release note [CFOSAT_AWWAIS_V7.1_ReleaseNote.pdf (altimetry.fr), the SNR ratio is now set to 0.7 for 10° beam and combined beam.
To remember, this was chosen so as to find a compromise between improving the correlation coefficient between the wave elevation spectra from SWIM and from the MFWAM model, and not degrading the spectra in long and low swells regions. This change in the SNR threshold value does not change significantly the number of cases affected by the parasitic peak correction, which is about 30%.
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