Altimeter significant wave height data assimilation in the South China Sea using 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

	Altimeter significant wave height data assimilation in the South China Sea using Ensemble Optimal Interpolation
	Cao Lei1,2,3 ; Hou Yijun 1,2; Qi Peng1,2
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2015-09-01
卷号	33 期号:5 页码:1309-1319
关键词	ensemble optimal interpolation wave assimilation stationary ensemble
英文摘要	The application of ensemble optimal interpolation in wave data assimilation in the South China Sea is presented. A sampling strategy for a stationary ensemble is first discussed. The stationary ensemble is constructed by sampling from 24-h-interval significant wave height differences of model outputs over a long period, and is validated with altimeter significant wave height data, indicating that the ensemble errors have nearly the same probability distribution function. The background error covariance fields expressed by the ensemble sampled are anisotropic. Updating the static samples by season, the seasonal characteristics of the correlation coefficient distribution are reflected. Hindcast experiments including assimilation and control runs are conducted for the summer of 2010 in the South China Sea. The effect of ensemble optimal interpolation assimilation on wave hindcasts is validated using different satellite altimeter data (Jason-1 and 2 and ENVISAT) and buoy observations. It is found that the ensemble-optimal-interpolation-based wave assimilation scheme for the South China Sea achieves improvements similar to those of the previous optimal-interpolation-based scheme, indicating that the practical application of this computationally cheap ensemble method is feasible.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360846900021
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/50756]
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	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cao Lei,Hou Yijun,Qi Peng. Altimeter significant wave height data assimilation in the South China Sea using Ensemble Optimal Interpolation[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2015,33(5):1309-1319.
APA	Cao Lei,Hou Yijun,&Qi Peng.(2015).Altimeter significant wave height data assimilation in the South China Sea using Ensemble Optimal Interpolation.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,33(5),1309-1319.
MLA	Cao Lei,et al."Altimeter significant wave height data assimilation in the South China Sea using Ensemble Optimal Interpolation".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 33.5(2015):1309-1319.