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	Application of altimetry data assimilation on mesoscale eddies simulation
	Gao Shan; Wang Fan; Li MingKui; Chen YongLi; Yan ChangXiang; Zhu Jiang
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2008
卷号	51期号:1页码:142-151
关键词	Mesoscale Eddies Altimetry Data Assimilation Ovals
ISSN号	1006-9313
DOI	10.1007/s11430-007-0152-3
文献子类	Article
英文摘要	Mesoscale eddy plays an important role in the ocean circulation. In order to improve the simulation accuracy of the mesoscale eddies, a three-dimensional variation (3DVAR) data assimilation system called Ocean Variational Analysis System (OVALS) is coupled with a POM model to simulate the mesoscale eddies in the Northwest Pacific Ocean. In this system, the sea surface height anomaly (SSHA) data by satellite altimeters are assimilated and translated into pseudo temperature and salinity (T-S) profile data. Then, these profile data are taken as observation data to be assimilated again and produce the three-dimensional analysis T-S field. According to the characteristics of mesoscale eddy, the most appropriate assimilation parameters are set up and testified in this system. A ten years mesoscale eddies simulation and comparison experiment is made, which includes two schemes: assimilation and non-assimilation. The results of comparison between two schemes and the observation show that the simulation accuracy of the assimilation scheme is much better than that of non-assimilation, which verified that the altimetry data assimilation method can improve the simulation accuracy of the mesoscale dramatically and indicates that it is possible to use this system on the forecast of mesoscale eddies in the future.; Mesoscale eddy plays an important role in the ocean circulation. In order to improve the simulation accuracy of the mesoscale eddies, a three-dimensional variation (3DVAR) data assimilation system called Ocean Variational Analysis System (OVALS) is coupled with a POM model to simulate the mesoscale eddies in the Northwest Pacific Ocean. In this system, the sea surface height anomaly (SSHA) data by satellite altimeters are assimilated and translated into pseudo temperature and salinity (T-S) profile data. Then, these profile data are taken as observation data to be assimilated again and produce the three-dimensional analysis T-S field. According to the characteristics of mesoscale eddy, the most appropriate assimilation parameters are set up and testified in this system. A ten years mesoscale eddies simulation and comparison experiment is made, which includes two schemes: assimilation and non-assimilation. The results of comparison between two schemes and the observation show that the simulation accuracy of the assimilation scheme is much better than that of non-assimilation, which verified that the altimetry data assimilation method can improve the simulation accuracy of the mesoscale dramatically and indicates that it is possible to use this system on the forecast of mesoscale eddies in the future.
学科主题	Geosciences, Multidisciplinary
URL标识	查看原文
语种	英语
WOS记录号	WOS:000251412300014
公开日期	2010-12-31
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/6349]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Gao Shan,Wang Fan,Li MingKui,et al. Application of altimetry data assimilation on mesoscale eddies simulation[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(1):142-151.
APA	Gao Shan,Wang Fan,Li MingKui,Chen YongLi,Yan ChangXiang,&Zhu Jiang.(2008).Application of altimetry data assimilation on mesoscale eddies simulation.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,51(1),142-151.
MLA	Gao Shan,et al."Application of altimetry data assimilation on mesoscale eddies simulation".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 51.1(2008):142-151.

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