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Identifying sensitive areas of adaptive observations for prediction of the Kuroshio large meander using a shallow-water model
Zou Guang'an1,2,3; Wang Qiang1; Mu Mu1
2016-09-01
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号34期号:5页码:1122-1133
文章类型Article
摘要Sensitive areas for prediction of the Kuroshio large meander using a 1.5-layer, shallow-water ocean model were investigated using the conditional nonlinear optimal perturbation (CNOP) and first singular vector (FSV) methods. A series of sensitivity experiments were designed to test the sensitivity of sensitive areas within the numerical model. The following results were obtained: (1) the effect of initial CNOP and FSV patterns in their sensitive areas is greater than that of the same patterns in randomly selected areas, with the effect of the initial CNOP patterns in CNOP sensitive areas being the greatest; (2) both CNOP-and FSV-type initial errors grow more quickly than random errors; (3) the effect of random errors superimposed on the sensitive areas is greater than that of random errors introduced into randomly selected areas, and initial errors in the CNOP sensitive areas have greater effects on final forecasts. These results reveal that the sensitive areas determined using the CNOP are more sensitive than those of FSV and other randomly selected areas. In addition, ideal hindcasting experiments were conducted to examine the validity of the sensitive areas. The results indicate that reduction (or elimination) of CNOP-type errors in CNOP sensitive areas at the initial time has a greater forecast benefit than the reduction (or elimination) of FSV-type errors in FSV sensitive areas. These results suggest that the CNOP method is suitable for determining sensitive areas in the prediction of the Kuroshio large-meander path.
关键词Kuroshio Large Meander Conditional Nonlinear Optimal Perturbation (Cnop) First Singular Vector (Fsv) Sensitive Areas
DOI10.1007/s00343-016-4264-5
收录类别SCI
语种英语
WOS记录号WOS:000379737000025
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/130940
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Henan Univ, Sch Math & Stat, Kaifeng 475004, Peoples R China
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Zou Guang'an,Wang Qiang,Mu Mu. Identifying sensitive areas of adaptive observations for prediction of the Kuroshio large meander using a shallow-water model[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(5):1122-1133.
APA Zou Guang'an,Wang Qiang,&Mu Mu.(2016).Identifying sensitive areas of adaptive observations for prediction of the Kuroshio large meander using a shallow-water model.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(5),1122-1133.
MLA Zou Guang'an,et al."Identifying sensitive areas of adaptive observations for prediction of the Kuroshio large meander using a shallow-water model".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.5(2016):1122-1133.
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