Selecting an optimal configuration for the Soil Moisture and Ocean Salinity mission
نویسندگان
چکیده
منابع مشابه
Soil moisture retrieval from space: the Soil Moisture and Ocean Salinity (SMOS) mission
Microwave radiometry at low frequencies (L-band: 1.4 GHz, 21 cm) is an established technique for estimating surface soil moisture and sea surface salinity with a suitable sensitivity. However, from space, large antennas (several meters) are required to achieve an adequate spatial resolution at L-band. So as to reduce the problem of putting into orbit a large filled antenna, the possibility of u...
متن کاملSea Surface Salinity Retrieval within the ESA Soil Moisture and Ocean Salinity (SMOS) Mission
The SMOS (Soil Moisture and Ocean Salinity) mission will provide from 2007 onwards global maps of soil moisture over land and sea surface salinity over ocean. The radiometry group of the Technical University of Catalonia (UPC) in Barcelona has been involved either in the definition of the SMOS single payload, MIRAS (Microwave Imaging Radiometer by Aperture Synthesis), or in the organization of ...
متن کاملThe objectives and rationale of the Soil Moisture and Ocean Salinity (SMOS) Mission
This paper will describe the SMOS concept in terms of instrument (characteristics) investigates the main aspects of the retrieval capabilities of the 2-D microwave interferometer for monitoring soil moisture, vegetation biomass and surface temperature. The analysis is based on model inversion taking into account the instrument characteristics. The standard error of estimate of the surface varia...
متن کاملMission Objectives and Scientific Requirements of the Soil Moisture and Ocean Salinity (SMOS)
The main scientific objectives of the Soil Moisture and Ocean Salinity (SMOS) mission are to observe two crucial variables: soil moisture over land surface and sea surface salinity over oceans. The mission should also provide information on root zone soil moisture and vegetation and contribute to significant research in the field of the cryosphere SMOS is a demonstrator with broad and ambitious...
متن کاملA Novel Bias Correction Method for Soil Moisture and Ocean Salinity (SMOS) Soil Moisture: Retrieval Ensembles
Bias correction is a very important pre-processing step in satellite data assimilation analysis, as data assimilation itself cannot circumvent satellite biases. We introduce a retrieval algorithm-specific and spatially heterogeneous Instantaneous Field of View (IFOV) bias correction method for Soil Moisture and Ocean Salinity (SMOS) soil moisture. To the best of our knowledge, this is the first...
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ژورنال
عنوان ژورنال: Radio Science
سال: 2003
ISSN: 0048-6604
DOI: 10.1029/2002rs002744