DOI: 10.1002/2017JC013580
Scopus记录号: 2-s2.0-85042125020
论文题名: Mechanisms of the 40–70 Day Variability in the Yucatan Channel Volume Transport
作者: van Westen R.M. ; Dijkstra H.A. ; Klees R. ; Riva R.E.M. ; Slobbe D.C. ; van der Boog C.G. ; Katsman C.A. ; Candy A.S. ; Pietrzak J.D. ; Zijlema M. ; James R.K. ; Bouma T.J.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 2 起始页码: 1286
结束页码: 1300
语种: 英语
英文关键词: Caribbean Sea
; North Brazil Current
; sea surface height variability
; Yucatan Channel
Scopus关键词: altimetry
; atmospheric forcing
; kinetic energy
; numerical model
; outflow
; sea surface height
; volume transport
; Atlantic Ocean
; Brazil Current
; Caribbean Sea
; Gulf of Mexico
; Lesser Antilles
; Yucatan Channel
英文摘要: The Yucatan Channel connects the Caribbean Sea with the Gulf of Mexico and is the main outflow region of the Caribbean Sea. Moorings in the Yucatan Channel show high-frequent variability in kinetic energy (50–100 days) and transport (20–40 days), but the physical mechanisms controlling this variability are poorly understood. In this study, we show that the short-term variability in the Yucatan Channel transport has an upstream origin and arises from processes in the North Brazil Current. To establish this connection, we use data from altimetry and model output from several high resolution global models. A significant 40–70 day variability is found in the sea surface height in the North Brazil Current retroflection region with a propagation toward the Lesser Antilles. The frequency of variability is generated by intrinsic processes associated with the shedding of eddies, rather than by atmospheric forcing. This sea surface height variability is able to pass the Lesser Antilles, it propagates westward with the background ocean flow in the Caribbean Sea and finally affects the variability in the Yucatan Channel volume transport. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114608
Appears in Collections: 气候减缓与适应
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作者单位: Institute for Marine and Atmospheric Research Utrecht, Department of Physics and Astronomy, Utrecht University, Utrecht, Netherlands; Environmental Fluid Mechanics Section, Department of Hydraulic Engineering, Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands; Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, and Utrecht University, Yerseke, Netherlands
Recommended Citation:
van Westen R.M.,Dijkstra H.A.,Klees R.,et al. Mechanisms of the 40–70 Day Variability in the Yucatan Channel Volume Transport[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(2)