Application of altimetry data assimilation on mesoscale eddies simulation

doi:10.1007/s11430-007-0152-3

IOCAS-IR > 海洋环流与波动重点实验室

	Application of altimetry data assimilation on mesoscale eddies simulation
	Gao Shan ; Wang Fan; Li MingKui ; Chen YongLi ; Yan ChangXiang ; Zhu Jiang
	2008
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	51 期号:1 页码:142-151
文章类型	Article
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.
关键词	Mesoscale Eddies Altimetry Data Assimilation Ovals
学科领域	Geosciences, Multidisciplinary
DOI	10.1007/s11430-007-0152-3
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000251412300014
引用统计	被引频次：7[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/337002/6348
专题	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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