| 题名: | 雷达高度计海况偏差估计的基础上的一种新方法crossove |
| 其他题名: | A new method for radar altimeter sea state bias estimation based on crossover data and three-dimensional nonparametric model |
| 作者: | 蒋茂飞; 许可; 刘亚龙; 王磊
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| 作者部门: | 微波遥感部
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| 通讯作者: | 许可(xuke@mirslab.cn)
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| 关键词: | 雷达高度计
; 海况偏差
; 非参数估计
; LLR估计器
|
| 刊名: | 电子与信息学报
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| ISSN号: | 1009-5896
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| 出版日期: | 2016
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| 卷号: | 38, 期号:11, 页码:2731-2738 | | 收录类别: | EI
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| 英文摘要: | The Sea State Bias (SSB) is an important source of error in satellite altimetry. Operational SSB correction models are based on the altimeter-measured wind speed (U) and Significant Wave Height (SWH). This paper presents a new method to estimate the SSB from the crossover differences using a three-dimensional nonparametric model based on U, SWH, and the Mean Wave Period (MWP). Evaluated by the separate annual data sets from 2009 to 2011, the SSB values estimated with the presented method can decrease the variance of the crossover Sea Surface Height (SSH) differences by 1.64 cm2, or 1.28 cm RMS, and decrease the variance of the Sea Level Anomalies (SLA) by 0.92 cm2, or 0.96 cm RMS in comparison to the SSB values in the Geophysical Data Records (GDR) of Jason-2. It is of great significance for improving the precision of altimeter products. © 2016, Science Press. All right reserved. |
| 语种: | 中文
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| 内容类型: | 期刊论文
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| URI标识: | http://ir.nssc.ac.cn/handle/122/5649
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| Appears in Collections: | 微波遥感部_期刊论文
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