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An Optimization Strategy for Identifying Parameter Sensitivity in Atmospheric and Oceanic Models
Wang, Qiang1,2,3,4; Tang, Youmin5,6; Dijkstra, Henk A.7
2017-08-01
发表期刊MONTHLY WEATHER REVIEW
卷号145期号:8页码:3293-3305
文章类型Article
摘要A new optimization strategy is proposed to identify the sensitivities of simulations of atmospheric and oceanic models to uncertain parameters. The strategy is based on a nonlinear optimization method that is able to estimate the maximum values of specific parameter sensitivity measures; meanwhile, it takes into account interactions among uncertain parameters. It is tested using the Lorenz' 63 model and an intermediate complexity 2.5-layer shallow-water model of the North Pacific Ocean. For the Lorenz' 63 model, it is shown that the parameter sensitivities of the model results depend on the initial conditions. For the 2.5-layer shallow-water model used to simulate the Kuroshio large meander (KLM) south of Japan, the optimization strategy reveals that the prediction of the KLM path is insensitive to the uncertainties in the bottom friction coefficient, the interfacial friction coefficient, and the lateral friction coefficient. Rather, the KLM prediction is relatively sensitive to the uncertainties of the reduced gravity representing ocean stratification and the wind stress coefficient.
DOI10.1175/MWR-D-16-0393.1
收录类别SCI
语种英语
WOS记录号WOS:000409304800019
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文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143137
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
3.Univ Northern British Columbia, Environm Sci & Engn, Prince George, BC, Canada
4.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
5.Univ Northern British Columbia, Dept Environm Sci & Engn, Prince George, BC, Canada
6.Second Inst Oceanog, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China
7.Univ Utrecht, Inst Marine & Atmospher Res Utrecht, Dept Phys & Astron, Utrecht, Netherlands
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Wang, Qiang,Tang, Youmin,Dijkstra, Henk A.. An Optimization Strategy for Identifying Parameter Sensitivity in Atmospheric and Oceanic Models[J]. MONTHLY WEATHER REVIEW,2017,145(8):3293-3305.
APA Wang, Qiang,Tang, Youmin,&Dijkstra, Henk A..(2017).An Optimization Strategy for Identifying Parameter Sensitivity in Atmospheric and Oceanic Models.MONTHLY WEATHER REVIEW,145(8),3293-3305.
MLA Wang, Qiang,et al."An Optimization Strategy for Identifying Parameter Sensitivity in Atmospheric and Oceanic Models".MONTHLY WEATHER REVIEW 145.8(2017):3293-3305.
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