DOI: 10.1002/2016GL068998
论文题名: Circulation and meltwater distribution in the Bellingshausen Sea: From shelf break to coast
作者: Zhang X. ; Thompson A.F. ; Flexas M.M. ; Roquet F. ; Bornemann H.
刊名: Geophysical Research Letters
ISSN: 0094-9671
EISSN: 1944-9402
出版年: 2016
卷: 43, 期: 12 起始页码: 6402
结束页码: 6409
语种: 英语
英文关键词: animal-borne sampling
; Bellingshausen Sea
; Circumpolar Deep Water
; slope current
Scopus关键词: Hydrographic surveys
; Antarctic ice shelves
; Bellingshausen Sea
; Cyclonic circulation
; Deep Water
; Modified circumpolar deep waters
; Oceanographic measurements
; Slope currents
; West antarctic ice sheets
; Ice
; circumpolar current
; coastal zone
; cyclone
; deep water
; hydrography
; meltwater
; oceanic circulation
; shelf break
; slope
; water exchange
; Antarctic Ice Sheet
; Antarctica
; Belgica Trough
; Bellingshausen Sea
; Southern Ocean
; West Antarctic Ice Sheet
; West Antarctica
; Animalia
英文摘要: West Antarctic ice shelves have thinned dramatically over recent decades. Oceanographic measurements that explore connections between offshore warming and transport across a continental shelf with variable bathymetry toward ice shelves are needed to constrain future changes in melt rates. Six years of seal-acquired observations provide extensive hydrographic coverage in the Bellingshausen Sea, where ship-based measurements are scarce. Warm but modified Circumpolar Deep Water floods the shelf and establishes a cyclonic circulation within the Belgica Trough with flow extending toward the coast along the eastern boundaries and returning to the shelf break along western boundaries. These boundary currents are the primary water mass pathways that carry heat toward the coast and advect ice shelf meltwater offshore. The modified Circumpolar Deep Water and meltwater mixtures shoal and thin as they approach the continental slope before flowing westward at the shelf break, suggesting the presence of the Antarctic Slope Current. Constraining meltwater pathways is a key step in monitoring the stability of the West Antarctic Ice Sheet. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977545091&doi=10.1002%2f2016GL068998&partnerID=40&md5=a90c48c2c6f729c496047868e411ac04
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10634
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: Environmental Science and Engineering, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Zhang X.,Thompson A.F.,Flexas M.M.,et al. Circulation and meltwater distribution in the Bellingshausen Sea: From shelf break to coast[J]. Geophysical Research Letters,2016-01-01,43(12).