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RESEARCH PRODUCT
CAROLS: A New Airborne L-Band Radiometer for Ocean Surface and Land Observations
Jean-christophe CalvetClément AlbergelJoseph TenerelliMarion Leduc-leballeurPascal FaniseJean-pierre WigneronAntonio RiusMehrez ZribiMonique DechambreMickaël PardéJacquline BoutinGilles ReverdinNiels SkouYann KerrErnesto López-baezaSten Schmidl SøbjærgDanièle Hausersubject
analyse de donnéesL band010504 meteorology & atmospheric sciencesMeteorologytélédétection0211 other engineering and technologiesPolarimetry02 engineering and technologylcsh:Chemical technology01 natural sciencesBiochemistry RADIOMETER;CAROLS;L-BAND;MISSION SMOS;OCEAN SALINITY;SOIL MOISTURE; MESURE AEROPORTEECAROLSArticleAnalytical Chemistry[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystemslcsh:TP1-1185ocean salinityElectrical and Electronic EngineeringInstrumentation021101 geological & geomatics engineering0105 earth and related environmental sciencesRemote sensingRadiometerbusiness.industryConjunction (astronomy)Ocean salinityL bandradiometerL band radiometerAtomic and Molecular Physics and OpticsOn boardL-bandAutre (Sciences de l'ingénieur)Global Positioning SystemEnvironmental scienceSatelliteRadiometerSoil moisturesoil moisturebusinessSMOSdescription
The "Cooperative Airborne Radiometer for Ocean and Land Studies" (CAROLS) L-Band radiometer was designed and built as a copy of the EMIRAD II radiometer constructed by the Technical University of Denmark team. It is a fully polarimetric and direct sampling correlation radiometer. It is installed on board a dedicated French ATR42 research aircraft, in conjunction with other airborne instruments (C-Band scatterometer--STORM, the GOLD-RTR GPS system, the infrared CIMEL radiometer and a visible wavelength camera). Following initial laboratory qualifications, three airborne campaigns involving 21 flights were carried out over South West France, the Valencia site and the Bay of Biscay (Atlantic Ocean) in 2007, 2008 and 2009, in coordination with in situ field campaigns. In order to validate the CAROLS data, various aircraft flight patterns and maneuvers were implemented, including straight horizontal flights, circular flights, wing and nose wags over the ocean. Analysis of the first two campaigns in 2007 and 2008 leads us to improve the CAROLS radiometer regarding isolation between channels and filter bandwidth. After implementation of these improvements, results show that the instrument is conforming to specification and is a useful tool for Soil Moisture and Ocean Salinity (SMOS) satellite validation as well as for specific studies on surface soil moisture or ocean salinity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-12 |