SMOS FLOOR ERROR IMPACT AND MIGATION ON OCEAN IMAGING

	SMOS FLOOR ERROR IMPACT AND MIGATION ON OCEAN IMAGING
	Duran, Israel; Lin, Wu; Corbella, Ignasi; Torres, Francesc; Duffo, Nuria; Martin-Neira, Manuel
	2015
会议名称	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 26-31, 2015
会议地点	Milan, ITALY
关键词	radiometer interferometer imaging errors SMOS
页码	1437-1440
通讯作者	Duran, I (reprint author), Univ Politecn Cataluna, Remote Sensing Lab, Barcelona, Spain.
英文摘要	SMOS is the acronym for the Soil Moisture and Ocean Salinity mission by the European Space Agency (ESA) [1]. Its single payload, the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS), was successfully launched in November 2009 to provide a continuous flow of fully polarimetric brightness temperature images. After more than five years of operation, SMOS has proven to be highly useful for a variety of scientific applications related to soil moisture over land, ocean salinity and winds over ocean, as well as specific studies over the ice covered surfaces [2][3]. Along these years of operation, SMOS calibration and imaging algorithms have undergone a continuous evolution to further improve the accuracy of the retrieved geophysical parameters. These improvements are particularly useful in Ocean Salinity applications where accuracy and stability requirements are very demanding and spatial and temporal averaging is required to achieve SMOS mission objectives. This paper analyzes the impact on ocean images of the socalled "floor error", an image reconstruction artifact that, currently, is significant on the 3rd and 4th Stokes parameters. Error mitigation techniques are evaluated by computing spatial bias over the ocean and also by providing a 4th Stokes global error map over the ocean that takes into account SMOS full spatial and temporal averaging capabilities.
收录类别	EI ; CPCI
会议主办者	IEEE
会议录	2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
会议录出版者	IEEE
语种	英语
ISSN号	2153-6996
ISBN号	978-1-4799-7929-5
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/5404]
专题	国家空间科学中心_微波遥感部
作者单位	微波遥感部
推荐引用方式 GB/T 7714	Duran, Israel,Lin, Wu,Corbella, Ignasi,et al. SMOS FLOOR ERROR IMPACT AND MIGATION ON OCEAN IMAGING[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Milan, ITALY. JUL 26-31, 2015.