CCI+SSS, A New SMOS L2 Reprocessing Reduces Errors on Sea Surface Salinity Time Series

The European Space Agency (ESA) Climate Change Initiative (CCI+) for Sea Surface Salinity (SSS) aims at generating global SSS fields from all available satellite L-band radiometer measurements over the longest possible period with a great stability (including Soil Moisture and Ocean Salinity, SMOS)....

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Bibliographic Details
Main Authors: Perrot, X., Boutin, J., Vergely, J. L., Rouffi, F., Martin, A., Guimbard, S., Koehler, J., Reul, N., Catany, R., Cipollini, P., Sabia, R.
Format: Conference Proceeding
Language:English
Subjects:
Climate change
Radiometry
salinity
Satellite broadcasting
satellite remote sensing
Sea measurements
Sea surface salinity
SMOS
Soil measurements
Systematics
Time series analysis
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Summary:The European Space Agency (ESA) Climate Change Initiative (CCI+) for Sea Surface Salinity (SSS) aims at generating global SSS fields from all available satellite L-band radiometer measurements over the longest possible period with a great stability (including Soil Moisture and Ocean Salinity, SMOS). Version 1 and 2 of CCI+SSS level 4 fields combine SSS form the three satellite L-Band radiometer missions and have been found to be in a very good agreement with in situ measurements (global rms difference of 0,16 pss). Nevertheless, some systematic differences still remain between CCI+SSS and in situ SSS. We study here to which extent some errors coming from the SMOS SSS processing are reduced, when making some key changes in the SMOS level 2 OS processing. Then, we discuss the contribution of each change in the preliminary results we obtain.
ISSN:2153-7003
DOI:10.1109/IGARSS47720.2021.9554451