DOI: 10.1002/2015GL063494
论文题名: Rapid injection of near-inertial shear into the stratified upper ocean at an Antarctic Circumpolar Current front
作者: Forryan A. ; Naveira Garabato A.C. ; Polzin K.L. ; Waterman S.
刊名: Geophysical Research Letters
ISSN: 0094-9283
EISSN: 1944-9014
出版年: 2015
卷: 42, 期: 9 起始页码: 3431
结束页码: 3441
语种: 英语
英文关键词: near-inertial shear
; restratification
; upper ocean
Scopus关键词: Ocean currents
; Oceanography
; Storms
; Antarctic Circumpolar Currents
; Inertial current
; Rapid injections
; Restratification
; Southern ocean
; Stratified ocean
; Stratified waters
; Upper ocean
; Shear flow
; mixed layer
; oceanic front
; stratified flow
; turbulence
; upper ocean
; wind-driven current
; Antarctic Circumpolar Current
; Southern Ocean
英文摘要: The impact on the upper ocean of the passage of a short, intense storm over a Southern Ocean site, in proximity to an Antarctic Circumpolar Current front, is characterized. The storm causes a wind-induced deepening of the mixed layer and generates an inertial current. Immediate poststorm observations indicate a mixed layer extending to approximately 50m depth. Subsequent measurements show the upper ocean to have restratified, injecting near-inertial shear in stratified waters within 1day of the storm's passage. This time scale for the development of near-inertial shear is 1 order of magnitude shorter than that predicted by the β dispersion paradigm. The observed rapid changes in upper ocean stratification point to the existence of an as yet undocumented, efficient mechanism for injection of near-inertial shear into the stratified ocean that is in turn associated with enhanced turbulence and mixing. Key Points Rapid restratification of upper ocean following a storm close to an ocean front Development of near-inertial shear deviates from beta dispersion paradigm ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930475775&doi=10.1002%2f2015GL063494&partnerID=40&md5=25c8d0f4609b2a5bf82b179e077e65c3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8899
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: University of Southampton, National Oceanography Center, Southampton, United Kingdom
Recommended Citation:
Forryan A.,Naveira Garabato A.C.,Polzin K.L.,et al. Rapid injection of near-inertial shear into the stratified upper ocean at an Antarctic Circumpolar Current front[J]. Geophysical Research Letters,2015-01-01,42(9).