DOI: 10.1002/2016GL069573
论文题名: A Rossby whistle: A resonant basin mode observed in the Caribbean Sea
作者: Hughes C.W. ; Williams J. ; Hibbert A. ; Boening C. ; Oram J.
刊名: Geophysical Research Letters
ISSN: 0094-8897
EISSN: 1944-8628
出版年: 2016
卷: 43, 期: 13 起始页码: 7036
结束页码: 7043
语种: 英语
英文关键词: basin mode
; bottom pressure
; Caribbean Sea
; Rossby wave
; sea level
Scopus关键词: Sea level
; Basin mode
; Bottom pressures
; Caribbean Sea
; Coastal sea level
; Mass exchange
; Porous boundaries
; Rossby wave
; Two wavelength
; Mechanical waves
; baroclinic instability
; baroclinic wave
; bottom pressure
; Rossby wave
; sea level change
; wave propagation
; Atlantic Ocean
; Caribbean Sea
英文摘要: We show that an important source of coastal sea level variability around the Caribbean Sea is a resonant basin mode. The mode consists of a baroclinic Rossby wave which propagates westward across the basin and is rapidly returned to the east along the southern boundary as coastal shelf waves. Almost two wavelengths of the Rossby wave fit across the basin, and it has a period of 120 days. The porous boundary of the Caribbean Sea results in this mode exciting a mass exchange with the wider ocean, leading to a dominant mode of bottom pressure variability which is almost uniform over the Grenada, Venezuela, and Colombia basins and has a sharp spectral peak at 120 day period. As the Rossby waves have been shown to be excited by instability of the Caribbean Current, this resonant mode is dynamically equivalent to the operation of a whistle. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978066579&doi=10.1002%2f2016GL069573&partnerID=40&md5=f11c84c76f2e120e19c6a061447d191e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9860
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom
Recommended Citation:
Hughes C.W.,Williams J.,Hibbert A.,et al. A Rossby whistle: A resonant basin mode observed in the Caribbean Sea[J]. Geophysical Research Letters,2016-01-01,43(13).