DOI: 10.1002/2014GL062281
论文题名: Eddy-mediated transport of warm Circumpolar Deep Water across the Antarctic Shelf Break
作者: Stewart A.L. ; Thompson A.F.
刊名: Geophysical Research Letters
ISSN: 0094-9018
EISSN: 1944-8749
出版年: 2015
卷: 42, 期: 2 起始页码: 432
结束页码: 440
语种: 英语
英文关键词: Antarctic bottom water
; Antarctic slope front
; Circumpolar Deep Water
; Mesoscale eddies
Scopus关键词: Earth sciences
; Geophysics
; Antarctic Bottom Water
; Antarctic slope front
; Continental shelves
; Deep Water
; Dense antarctic bottom waters
; Eddy heat transport
; Mesoscale eddy
; Transport of heat
; Charge density waves
; abyssal circulation
; circumpolar current
; continental shelf
; eddy
; heat transfer
; shelf break
; water mass
; wind-driven circulation
; Southern Ocean
英文摘要: The Antarctic Slope Front (ASF) modulates ventilation of the abyssal ocean via the export of dense Antarctic Bottom Water (AABW) and constrains shoreward transport of warm Circumpolar Deep Water (CDW) toward marine-terminating glaciers. Along certain stretches of the continental shelf, particularly where AABW is exported, density surfaces connect the shelf waters to the middepth Circumpolar Deep Water offshore, offering a pathway for mesoscale eddies to transport CDW directly onto the continental shelf. Using an eddy-resolving process model of the ASF, the authors show that mesoscale eddies can supply a dynamically significant transport of heat and mass across the continental shelf break. The shoreward transport of surface waters is purely wind driven, while the shoreward CDW transport is entirely due to mesoscale eddy transfer. The CDW flux is sensitive to all aspects of the model's surface forcing and geometry, suggesting that shoreward eddy heat transport may be localized to favorable sections of the continental slope. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923551852&doi=10.1002%2f2014GL062281&partnerID=40&md5=67a057b1dee239c960aa5d7df545d19d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8634
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: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States
Recommended Citation:
Stewart A.L.,Thompson A.F.. Eddy-mediated transport of warm Circumpolar Deep Water across the Antarctic Shelf Break[J]. Geophysical Research Letters,2015-01-01,42(2).