DOI: 10.1002/grl.50526
论文题名: Remotely induced warming of Antarctic Bottom Water in the eastern Weddell gyre
作者: Couldrey M.P. ; Jullion L. ; Naveira Garabato A.C. ; Rye C. ; Herráiz-Borreguero L. ; Brown P.J. ; Meredith M.P. ; Speer K.L.
刊名: Geophysical Research Letters
ISSN: 0094-8961
EISSN: 1944-8692
出版年: 2013
卷: 40, 期: 11 起始页码: 2755
结束页码: 2760
语种: 英语
英文关键词: AABW
; ACC
; Cape Darnley
; Southern Ocean
Scopus关键词: AABW
; ACC
; Antarctic Bottom Water
; Antarctic Circumpolar Currents
; Cape Darnley
; Most likely
; Shelf waters
; Southern ocean
; Ocean currents
; Hydrographic surveys
; altimeter
; Antarctic Bottom Water
; boundary current
; circumpolar current
; gyre
; hydrography
; Antarctic Circumpolar Current
; Southern Ocean
; Weddell Sea
英文摘要: Four repeat hydrographic sections across the eastern Weddell gyre at 30°E reveal a warming (by ∼0.1°C) and lightening (by ∼0.02-0.03 kg m-3) of the Antarctic Bottom Water (AABW) entering the gyre from the Indian sector of the Southern Ocean between the mid-1990s and late 2000s. Historical hydrographic and altimetric measurements in the region suggest that the most likely explanation for the change is increased entrainment of warmer mid-depth Circumpolar Deep Water by cascading shelf water plumes close to Cape Darnley, where the Indian-sourced AABW entering the Weddell gyre from the east is ventilated. This change in entrainment is associated with a concurrent southward shift of the Antarctic Circumpolar Current's (ACC) southern boundary in the region. This mechanism of AABW warming may affect wherever the ACC flows close to Antarctica. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879894466&doi=10.1002%2fgrl.50526&partnerID=40&md5=dc964b37b0e7185ee4a44444a78e4af1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6225
Appears in Collections: 气候减缓与适应
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作者单位: University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, United Kingdom
Recommended Citation:
Couldrey M.P.,Jullion L.,Naveira Garabato A.C.,et al. Remotely induced warming of Antarctic Bottom Water in the eastern Weddell gyre[J]. Geophysical Research Letters,2013-01-01,40(11).