Title :
Errors on surface salinity retrieved from SMOS measurements over global ocean
Author :
Boutin, Jacqueline ; Waldteufel, Philippe ; Caudal, Gérard ; Martin, Nicolas ; Cot, C.
Author_Institution :
LODYC, Paris, France
Abstract :
We estimate the error on the sea surface salinity (SSS) retrieved in the SMOS (Soil Moisture and Ocean Salinity) configuration at 200-km and 10-day resolution. With reasonable assumptions on wind speed errors and sea surface temperature errors, we show that the retrieved SSS should meet the GODAE requirements. The Faraday rotation is shown to affect the SSS precision by less than 15% in most oceanic regions, because of a relatively weak sensitivity of the second Stokes parameter to SSS.
Keywords :
measurement errors; oceanographic techniques; remote sensing; Faraday rotation; GODAE requirements; Global Ocean Data Assimilation Experiment; SMOS configuration; Soil Moisture and Ocean Salinity mission; Stokes parameter; global ocean; sea surface salinity; sea surface temperature errors; wind speed errors; Antenna measurements; Ocean temperature; Polarization; Radiometry; Satellite broadcasting; Sea measurements; Sea surface; Soil measurements; Velocity measurement; Wind speed;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026116
