DOI: 10.1002/2014GL062627
论文题名: Baroclinic energy flux at the continental shelf edge modified by wind-mixing
作者: Stephenson G.R. ; Hopkins J.E. ; Mattias Green J.A. ; Inall M.E. ; Palmer M.R.
刊名: Geophysical Research Letters
ISSN: 0094-8862
EISSN: 1944-8593
出版年: 2015
卷: 42, 期: 6 起始页码: 1826
结束页码: 1833
语种: 英语
英文关键词: baroclinic energy flux
; Celtic Sea
; critical slope
; internal tide
; storm-driven mixing
Scopus关键词: Mixing
; Mooring
; Storms
; Tides
; Celtic seas
; Continental shelves
; Critical slope
; Energy fluxes
; Internal tides
; Restratification
; Water columns
; Wind-driven vertical mixing
; Tidal power
; baroclinic wave
; energy flux
; shelf break
; timescale
; water column
; wave propagation
; wind field
; Atlantic Ocean
; Celtic Sea
英文摘要: Temperature and current measurements from two moorings onshore of the Celtic Sea shelf break, a well-known hot spot for tidal energy conversion, show the impact of passing summer storms on the baroclinic wavefield. Wind-driven vertical mixing changed stratification to permit an increased on-shelf energy transport, and baroclinic energy in the semidiurnal band appeared at the moorings 1-4 days after the storm mixed the upper 50 m of the water column. The timing of the maximum in the baroclinic energy flux is consistent with the propagation of the semidiurnal internal tide from generation sites at the shelf break to the moorings 40 km away. Also, the ∼3 day duration of the peak in M2 baroclinic energy flux at the moorings corresponds to the restratification time scale following the first storm. Key Points Depth-averaged N governs criticality for first mode internal waves on the shelf Wind-mixing causes 3 day subcritical window for IT to propagate on-shelf Peaks in M2 energy flux at shelf moorings are delayed relative to wind-mixing ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927799301&doi=10.1002%2f2014GL062627&partnerID=40&md5=a86ce129a6a78d226894bee8b9053057
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8478
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 Ocean Sciences, Bangor University, Menai Bridge, United Kingdom
Recommended Citation:
Stephenson G.R.,Hopkins J.E.,Mattias Green J.A.,et al. Baroclinic energy flux at the continental shelf edge modified by wind-mixing[J]. Geophysical Research Letters,2015-01-01,42(6).