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题名: ESTIMATING THE SEA STATE BIAS OF HY-2A RADAR ALTIMETER BY USING A THREE-DIMENTIONAL NONPARAMETRIC MODEL
作者: Jiang, Maofei; Xu, Ke; Liu, Yalong; Wang, Lei
作者部门: 微波遥感部
通讯作者: Jiang, MF (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China. ; Jiang, MF (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
会议名称: 36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期: JUL 10-15, 2016
会议地点: Beijing, PEOPLES R CHINA
会议录: 2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
出版日期: 2016
收录类别: CPCI
页码: 396-399
ISSN号: 2153-6996
ISBN号: 978-1-5090-3332-4
关键词: HY-2A ; radar altimeter ; sea state bias ; crossover differences ; 3-D nonparametric model
英文摘要: The sea state bias (SSB) has become the dominant source of error in satellite altimetry. The operational SSB correction models are two-dimensional (2-D) nonparametric models based on the wind speed (U) and the significant wave height (SWH) that can be directly measured by the altimeters. This paper estimates the sea state bias of HY-2A radar altimeter using a three-dimensional (3-D) nonparametric model based on SWH from HY_2A interim geophysical dataset records (IGDR), U and the mean wave period (MWP) from the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis project ERA-Interim. The 3-D SSB estimates can increase the explained variance by 1.72 cm(2), or 1.31 cm RMS relative to the traditional 2-D SSB estimates based on U and SWH.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.nssc.ac.cn/handle/122/5764
Appears in Collections:微波遥感部_会议论文

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