The Assimilation of Jason-2 Significant Wave Height Data in the North Indian Ocean Using the Ensemble Optimal Interpolation

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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
刊名	IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
	2016
卷号	54 期号:1 页码:287-297
关键词	Data assimilation ensemble optimal interpolation (EnOI) NOAA WAVEWATCH III (NWW3) satellite altimeter data
英文摘要	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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000364833900022
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/82301]
专题	海洋研究所_海洋环流与波动重点实验室海洋研究所_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
推荐引用方式 GB/T 7714	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.