Establishment and tests of EnOI assimilation module for WAVEWATCH III

doi:10.1007/s00343-015-4282-8

IOCAS-IR > 海洋环流与波动重点实验室

	Establishment and tests of EnOI assimilation module for WAVEWATCH III
	Qi Peng1,2 ; Cao Lei1,2,3
	2015-09-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号	33 期号:5 页码:1295-1308
文章类型	Article
摘要	In this paper, we propose a parallel data assimilation module based on ensemble optimal interpolation (EnOI). We embedded the method into the full-spectral third-generation wind-wave model, WAVEWATCH III Version 3.14, producing a wave data assimilation system. We present our preliminary experiments assimilating altimeter significant wave heights (SWH) using the EnOI-based wave assimilation system. Waters north of 15A degrees S in the Indian Ocean and South China Sea were chosen as the target computational domain, which was two-way nested into the global implementation of the WAVEWATCH III. The wave model was forced by six-hourly ocean surface wind velocities from the cross-calibrated multi-platform wind vector dataset. The assimilation used along-track SWH data from the Jason-2 altimeter. We evaluated the effect of the assimilation on the analyses and hindcasts, and found that our technique was effective. Although there was a considerable mean bias in the control SWHs, a month-long consecutive assimilation reduced the bias by approximately 84% and the root mean-square error (RMSE) by approximately 65%. Improvements in the SWH RMSE for both the analysis and hindcast periods were more significant in July than January, because of the monsoon climate. The improvement in model skill persisted for up to 48 h in July. Furthermore, the SWH data assimilation had the greatest impact in areas and seasons where and when the sea-states were dominated by swells.
关键词	Data Assimilation Ensemble Optimal Interpolation (Enoi) Wavewatch Iii Satellite Altimeter Data
DOI	10.1007/s00343-015-4282-8
收录类别	SCI
语种	英语
WOS记录号	WOS:000360846900020
引用统计	被引频次：4[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/337002/50761
专题	海洋环流与波动重点实验室海洋环境腐蚀与生物污损重点实验室
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
第一作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Qi Peng,Cao Lei. Establishment and tests of EnOI assimilation module for WAVEWATCH III[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2015,33(5):1295-1308.
APA	Qi Peng,&Cao Lei.(2015).Establishment and tests of EnOI assimilation module for WAVEWATCH III.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,33(5),1295-1308.
MLA	Qi Peng,et al."Establishment and tests of EnOI assimilation module for WAVEWATCH III".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 33.5(2015):1295-1308.

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