FN Archimer Export Format PT J TI Remote Sensing of Sea Surface Salinity From CAROLS L-Band Radiometer in the Gulf of Biscay BT AF MARTIN, Adrien BOUTIN, Jacqueline HAUSER, Daniele REVERDIN, Gilles PARDE, Mickael ZRIBI, Mehrez FANISE, Pascal CHANUT, Jerome LAZURE, Pascal TENERELLI, Joseph REUL, Nicolas AS 1:1;2:1;3:2,3;4:1;5:2,3;6:4;7:2,3;8:5;9:6;10:7;11:6; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:PDG-ODE-DYNECO-PHYSED;10:;11:PDG-ODE-LOS; C1 Univ Paris 06, Inst Pierre Simon Laplace, LOCEAN,Museum Natl Hist Nat, Unite Mixte Rech 7159,Ctr Natl Rech Sci,Inst Rech, F-75252 Paris, France. Univ Versailles St Quentin Yvelines, F-78280 Guyancourt, France. CNRS, Lab Atmospheres Milieux Observ Spatiales LATMOS, Inst Pierre Simon Laplace, F-78280 Guyancourt, France. CESBIO CNRS IRD UPS CNES, F-31000 Toulouse, France. Mercator, F-31000 Toulouse, France. IFREMER, F-29280 Plouzane, France. CLS, F-29280 Plouzane, France. C2 IPSL, FRANCE UNIV VERSAILLES, FRANCE CNRS, FRANCE CNES, FRANCE MERCATOR, FRANCE IFREMER, FRANCE CLS, FRANCE SI BREST SE PDG-ODE-DYNECO-PHYSED PDG-ODE-LOS IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 3.47 TC 16 TU CNES CNRS IFREMER IPSL IRD MNHN UNIVERSITE PARIS 6 UNIVERSITE TOULOUSE 3 UNIVERSITE VERSAILLES UR https://archimer.ifremer.fr/doc/00079/18997/16600.pdf LA English DT Article CR CAROLS 2009 GOGASMOS BO CĂ´tes De La Manche Antea DE ;L-band;microwave radiometry;remote sensing;retrieval method;sea surface salinity (SSS);Soil Moisture and Ocean Salinity (SMOS);wind speed AB A renewal of interest for the radiometric L-band Sea Surface Salinity (SSS) remote sensing appeared in the 1990s and led to the Soil Moisture and Ocean Salinity (SMOS) satellite launched in November 2009 and to the Aquarius mission (launched in June 2011). However, due to low signal to noise ratio, retrieving SSS from L-band radiometry is very challenging. In order to validate and improve L-band radiative transfer model and salinity retrieval method used in SMOS data processing, the Cooperative Airborne Radiometer for Ocean and Land Studies (CAROLS) was developed. We analyze here a coastal flight (20 May 2009), in the Gulf of Biscay, characterized by strong SSS gradients (28 to 35 pss-78). Extensive in-situ measurements were gathered along the plane track. Brightness temperature (T-b) integrated over 800 ms correlates well with simulated T-b (correlation coefficients between 0.80 and 0.96; standard deviations of the difference of 0.2 K). Over the whole flight, the standard deviation of the difference between CAROLS and in-situ SSS is about 0.3 pss-78 more accurate than SSS fields derived from coastal numerical model or objective analysis. In the northern part of the flight, CAROLS and in-situ SSS agree. In the southern part, the best agreement is found when using only V-polarization measured at 30 degrees incidence angle or when using a multiparameter retrieval assuming large error on T-b (suggesting the presence of biases on H-polarization). When compared to high-resolution model SSS, the CAROLS SSS underlines the high SSS temporal variability in river plume and on continental shelf border, and the importance of using realistic river run-offs for modeling coastal SSS. PY 2012 PD MAY SO Ieee Transactions On Geoscience And Remote Sensing SN 0196-2892 PU Ieee-inst Electrical Electronics Engineers Inc VL 50 IS 5 UT 000303205200029 BP 1703 EP 1715 DI 10.1109/TGRS.2012.2184766 ID 18997 ER EF