DOI: 10.1002/2014GL060113
论文题名: Nonlinear internal waves generated and trapped upstream of islands in the Kuroshio
作者: Kodaira T. ; Waseda T. ; Miyazawa Y.
刊名: Geophysical Research Letters
ISSN: 0094-9913
EISSN: 1944-9644
出版年: 2014
卷: 41, 期: 14 起始页码: 5091
结束页码: 5098
语种: 英语
英文关键词: islands
; nonlinear internal waves
; synthetic aperture radar
; the Kuroshio
Scopus关键词: Ocean currents
; islands
; Kuroshio
; Nonlinear internal wave
; Oceanic conditions
; Propagation speed
; Surface current
; Surface manifestations
; Synthetic aperture radar (SAR) images
; Synthetic aperture radar
; internal wave
; island
; nonlinear wave
; oceanic current
; radar imagery
; simulation
; streamflow
; synthetic aperture radar
; Chubu
; Honshu
; Izu Islands
; Japan
; Kuroshio Current
; Pacific Ocean
; Shizuoka [Chubu]
英文摘要: Nonlinear internal waves (NIWs) induce strong surface currents which are observable in synthetic aperture radar (SAR) images. SAR images of the Kuroshio show parabolic features around Japan's Izu Islands implying possible NIWs. Most images were taken during the summer when the Kuroshio approached the islands, and the winds were relatively weak. Nonhydrostatic numerical simulations revealed that around the islands, mode 1 internal waves are not trapped but higher modes, with lower propagation speeds, are trapped. The surface convergence field predicted by the model reproduces prominent, parabolic features observed in the SAR images. Based on this agreement, we suggest that the NIWs are generated around the Izu Islands by the Kuroshio and the parabolic features detected by SAR are surface manifestations of these NIWs. Specific atmospheric and oceanic conditions which are conducive for NIW detection by SAR are defined. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904520325&doi=10.1002%2f2014GL060113&partnerID=40&md5=4464357d53118a083ba91a132f8dd788
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7177
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ocean Technology, Policy and Environment, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan
Recommended Citation:
Kodaira T.,Waseda T.,Miyazawa Y.. Nonlinear internal waves generated and trapped upstream of islands in the Kuroshio[J]. Geophysical Research Letters,2014-01-01,41(14).