globalchange  > 气候减缓与适应
DOI: 10.1029/2017JC013173
Scopus记录号: 2-s2.0-85051111690
论文题名:
Zonally Elongated Transient Flows: Phenomenology and Sensitivity Analysis
作者: Rudko M.V.; Kamenkovich I.V.; Iskadarani M.; Mariano A.J.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:6
起始页码: 3982
结束页码: 4002
语种: 英语
英文关键词: EOF filtering ; Fourier filtering ; quasi-geostrophic model ; response surface ; sensitivity analysis ; zonally elongated transients
英文摘要: This study explores the phenomenology of zonally elongated transients (ZELTs) in the ocean and the sensitivity of their properties to changes in several environmental factors. ZELTs explain a major part of anisotropy in mesoscale turbulent flow. Calculations are performed in a two-layer, quasi-geostrophic model. Empirical Orthogonal Functions (EOF) decomposition allows for the separation of ZELTs from the background turbulent flow as several leading EOF modes. The leading Extended EOF reveals that ZELTs propagate westward at the speed of ˜ cm s−1. The decrease in the planetary vorticity gradient and increase in the bottom drag coefficient each leads to flattening of the variance spectrum, isotropization of the leading EOF, and fast decay of the autocorrelation function of its corresponding Principal Component. © 2018. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113752
Appears in Collections:气候减缓与适应

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作者单位: Department of Ocean Sciences, RSMAS/University of Miami, Miami, FL, United States; Now at Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, United States; Now at Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration, Miami, FL, United States

Recommended Citation:
Rudko M.V.,Kamenkovich I.V.,Iskadarani M.,et al. Zonally Elongated Transient Flows: Phenomenology and Sensitivity Analysis[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(6)
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