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| Boutin, Jacqueline; Vergely, Jean-luc; Dinnat, Emmanuel P.; Waldteufel, Philippe; D'Amico, Francesco; Reul, Nicolas; Supply, Alexandre; Thouvenin-masson, Clovis. |
| Earlier studies have pointed out systematic differences between sea surface salinity retrieved from L-band radiometric measurements and measured in situ, which depend on sea surface temperature (SST). We investigate how to cope with these differences given existing physically based radiative transfer models. In order to study differences coming from seawater dielectric constant parametrization, we consider the model of Somaraju and Trumpf (2006) (ST) which is built on sound physical bases and close to a single relaxation term Debye equation. While ST model uses fewer empirically adjusted parameters than other dielectric constant models currently used in salinity retrievals, ST dielectric constants are found close to those obtained using the Meissner and... |
| Tipo: Text |
Palavras-chave: Dielectric constant; L-band microwave radiometry; Sea surface salinity (SSS).. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00657/76943/78203.pdf |
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| Kerr, Yann H.; Waldteufel, Philippe; Wigneron, Jean-pierre; Delwart, Steven; Cabot, Francois; Boutin, Jacqueline; Escorihuela, Maria-jose; Font, Jordi; Reul, Nicolas; Gruhier, Claire; Juglea, Silvia Enache; Drinkwater, Mark R.; Hahne, Achim; Martin-neira, Manuel; Mecklenburg, Susanne. |
| It is now well understood that data on soil moisture and sea surface salinity (SSS) are required to improve meteorological and climate predictions. These two quantities are not yet available globally or with adequate temporal or spatial sampling. It is recognized that a spaceborne L-band radiometer with a suitable antenna is the most promising way of fulfilling this gap. With these scientific objectives and technical solution at the heart of a proposed mission concept the European Space Agency (ESA) selected the Soil Moisture and Ocean Salinity (SMOS) mission as its second Earth Explorer Opportunity Mission. The development of the SMOS mission was led by ESA in collaboration with the Centre National d'Etudes Spatiales (CNES) in France and the Centro para... |
| Tipo: Text |
Palavras-chave: Interferometry; L-band; Sea surface salinity (SSS); Soil moisture; Soil Moisture and Ocean Salinity (SMOS); Vegetation water content. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00004/11483/8065.pdf |
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