期刊
EUROPEAN JOURNAL OF REMOTE SENSING
卷 46, 期 -, 页码 759-773出版社
ASSOC ITALIANA TELERILEVAMENTO
DOI: 10.5721/EuJRS20134645
关键词
Remote sensing; SMOS; ASCAT; soil moisture
资金
- Italian Department of Civil Protection
More than two years of soil moisture data derived from the Advanced SCATterometer (ASCAT) and from the Soil Moisture and Ocean Salinity (SMOS) radiometer are analysed and compared. The comparison has been performed within the framework of an activity aiming at validating the EUMETSAT Hydrology Satellite Application Facility (H-SAF) soil moisture product derived from ASCAT. The available database covers a large part of the SMOS mission lifetime (2010, 2011 and partially 2012) and both Europe and North Africa are considered. A specific strategy has been set up in order to enable the comparison between products representing a volumetric soil moisture content, as those derived from SMOS, and a relative saturation index, as those derived from ASCAT. Results demonstrate that the two products show a fairly good degree of correlation. Their consistency has some dependence on season, geographical zone and surface land cover. Additional factors, such as spatial property features, are also preliminary investigated.
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