文章基本信息

标题：Assessment of the SMOS inversion scheme for salinity and wind speed retrieval purposes
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作者：Antonio Montuori ; Marcos Portabella ; Sebastien Guimbard 等
期刊名称：European Journal of Remote Sensing
电子版ISSN：2279-7254
出版年度：2013
卷号：46
期号：1
页码：855-873
DOI：10.5721/EuJRS20134651
摘要：A simplified parallel version of the Soil Moisture and Ocean Salinity (SMOS) Level 2 Ocean Salinity (L2OS) processor is used to assess the optimal configuration of both the SMOS cost function and the corresponding minimization scheme for sea surface salinity (SSS) and wind speed (U10) retrievals. For such a purpose, both realistically simulated brightness temperatures (TBs) and a post-launch derived semi-empirical forward model are used. This study confirms the effectiveness of the L2OS configuration for SSS retrieval and provides the optimal configuration for U10 retrieval. A revised cost function formulation, where the observational term has more weight than the background one, is further assessed, which leads to smaller retrieval errors.
关键词：SMOS ; Bayesian-based inversion ; Levenberg-Marquardt minimization scheme ; Sea surface salinity ; Sea surface wind speed