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ESTIMATING THE SEA STATE BIAS OF HY-2A RADAR ALTIMETER BY USING A THREE-DIMENTIONAL NONPARAMETRIC MODEL
Jiang, Maofei; Xu, Ke; Liu, Yalong; Wang, Lei; Jiang, MF (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source Publication2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
2016
Pages396-399
Language英语
ISSN2153-6996
ISBN978-1-5090-3332-4
AbstractThe 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.
KeywordHy-2a Radar Altimeter Sea State Bias Crossover Differences 3-d Nonparametric Model
Conference Name36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 10-15, 2016
Conference PlaceBeijing, PEOPLES R CHINA
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5764
Collection微波遥感部
Corresponding AuthorJiang, MF (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Jiang, Maofei,Xu, Ke,Liu, Yalong,et al. ESTIMATING THE SEA STATE BIAS OF HY-2A RADAR ALTIMETER BY USING A THREE-DIMENTIONAL NONPARAMETRIC MODEL[C],2016:396-399.
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