SMOS Level 3 Salinity Maps at CATDS: What do We Learn with Recent Reprocessings?
- Resource Type
- Conference
- Authors
- Boutin, J.; Vergely, J.L.; Khvorostyanov, D.; Tarot, S.; Guimbard, S.; Perrot, X.; Reul, N.; Vandermarcq, O.
- Source
- 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS Geoscience and Remote Sensing Symposium IGARSS , 2021 IEEE International. :1106-1109 Jul, 2021
- Subject
- Aerospace
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Satellites
Sea surface salinity
Salinity (geophysical)
Time series analysis
SMOS mission
Rivers
Noise measurement
SMOS
salinity
microwave
ocean remote sensing
- Language
- ISSN
- 2153-7003
Sea surface salinity is retrieved for more than 11 years from the Soil Moisture and Ocean Salinity (SMOS) satellite mission. This data set provides a unique monitoring of the Sea Surface Salinity (SSS) spatio-temporal variability at global scale. It is particularly useful to follow the surface ocean pathway of fresh river plumes water as illustrated here in the Bay of Bengal. A revised adjustment of the whole SMOS SSS time series (CATDS Expertise Center version 5, 2010–2020) leads to clear reduction of local biases in very variable regions and in very noisy regions. The robust std difference between SMOS CEC v5 (18-day, ~70km SSS) and Argo in situ SSS is 0.17 in regions warmer than 5°C. We will discuss how future CATDS products will be improved in view of two ongoing reprocessings, the CATDS L1/L2 v7 reprocessing and the ESA CCI+SSS L2 SMOS reprocessing.