IOCAS-IR  > 海洋环流与波动重点实验室
The Assimilation of Jason-2 Significant Wave Height Data in the North Indian Ocean Using the Ensemble Optimal Interpolation
Qi, Peng; Cao, Lei
2016
发表期刊IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
卷号54期号:1页码:287-297
文章类型Article
摘要A parallel module of data assimilation based on the ensemble optimal interpolation (EnOI) scheme has been developed and implanted into the third-generation spectral wave model NOAA WAVEWATCH III version 3.14 (hereafter NWW3). This paper presents an evaluation of preliminary experiments assimilating satellite altimeter significant wave height (SWH) data into the NWW3-EnOI wave assimilation system. Data from Jason-2 are used mainly for assimilation and from Jason-1 for validation. The target computational domain for the experiments is north of 15 degrees S in the Indian Ocean, which is nested into a global implementation of NWW3. A stationary ensemble of model output SWH sampled during a long time integration was examined first, showing that the ensemble error covariances were of significant flow dependence due to the monsoon climate. Experimental results by the NWW3-EnOI were validated against a number of moored buoys situated in the Bay of Bengal and east of the Arabian Sea. It was found that the assimilation of altimeter SWH reduced the root mean square errors in analyzed SWH by approximately 20%-60% at different validation stations. The improvement in model skill can be retained throughout the forecast period. The assimilation is found to have the greatest impact of the assimilation in areas and seasons where and when sea states are dominated by swells.
关键词Data Assimilation Ensemble Optimal Interpolation (Enoi) Noaa Wavewatch Iii (Nww3) Satellite Altimeter Data
DOI10.1109/TGRS.2015.2456035
收录类别SCI
语种英语
WOS记录号WOS:000364833900022
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/82301
专题海洋环流与波动重点实验室
海洋腐蚀与防护研究发展中心
作者单位Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
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Qi, Peng,Cao, Lei. The Assimilation of Jason-2 Significant Wave Height Data in the North Indian Ocean Using the Ensemble Optimal Interpolation[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2016,54(1):287-297.
APA Qi, Peng,&Cao, Lei.(2016).The Assimilation of Jason-2 Significant Wave Height Data in the North Indian Ocean Using the Ensemble Optimal Interpolation.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,54(1),287-297.
MLA Qi, Peng,et al."The Assimilation of Jason-2 Significant Wave Height Data in the North Indian Ocean Using the Ensemble Optimal Interpolation".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 54.1(2016):287-297.
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