CAROLS: A New Airborne L-Band Radiometer for Ocean Surface and Land Observations

Sensors

Mehrez Zribi⁷  Mickael Pardé¹  Jacquline Boutin⁵  Pascal Fanise¹  Daniele Hauser¹  Monique Dechambre¹  Yann Kerr⁷  Marion Leduc-Leballeur¹  Gilles Reverdin⁵  Niels Skou⁶  Sten Sྋjærg⁶  Clement Albergel⁸  Jean Christophe Calvet⁸  Jean Pierre Wigneron³  Ernesto Lopez-Baeza²  Antonio Rius⁴ 

[1] Université Versailles St-Quentin, UPMC, CNRS/INSU, LATMOS-IPSL (UVSQ/CNRS/UPMC), 11 Boulevard d’Alembert, 78280 Guyancourt, France; E-Mails:;Facultat de Fisica, Universitat de Valencia, C/Dr Moliner, 50, Burjassot, 46100 Valencia, Spain; E-Mail:;INRA, UR1263 EPHYSE, F-33140 Villenave d'Ornon, France; E-Mail:;IEEC/ICE-CSIC, Campus UAB/Fac Ciencies, Torre C-5-parell-2^a planta, 08193 Bellaterra, Spain; E-Mail:;LOCEAN, Tour 45-55-5eme étage, Paris, France; E-Mails:;DTU-Space, National Space Institute, DTU, B. 348, DK 2800, Lyngby, Denmark; E-Mails:;CESBIO (CNRS/IRD/CNES/UPS), 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France; E-Mail:;CNRM/GAME (Météo-France, CNRS), URA 1357, Toulouse, France; E-Mails:

关键词: radiometer;    CAROLS;    L band;    SMOS;    ocean salinity;    soil moisture;   

DOI  :  10.3390/s110100719

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.