DOI: 10.1002/2016GL069789
论文题名: Impact of slowdown of Atlantic overturning circulation on heat and freshwater transports
作者: Kelly K.A. ; Drushka K. ; Thompson L. ; Le Bars D. ; McDonagh E.L.
刊名: Geophysical Research Letters
ISSN: 0094-8839
EISSN: 1944-8570
出版年: 2016
卷: 43, 期: 14 起始页码: 7625
结束页码: 7631
语种: 英语
英文关键词: AMOC
; freshwater
; heat transport
Scopus关键词: Budget control
; Heat transfer
; Water
; AMOC
; Freshwater
; Freshwater fluxes
; Freshwater transports
; Heat transport
; Overturning circulation
; Satellite observations
; Transport estimates
; Oceanography
; convergence
; freshwater
; heat transfer
; hydrography
; meridional circulation
; oceanic circulation
; salinity
; satellite imagery
; spatiotemporal analysis
; temperature anomaly
; water budget
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: Recent measurements of the strength of the Atlantic overturning circulation at 26°N show a 1Â year drop and partial recovery amid a gradual weakening. To examine the extent and impact of the slowdown on basin wide heat and freshwater transports for 2004–2012, a box model that assimilates hydrographic and satellite observations is used to estimate heat transport and freshwater convergence as residuals of the heat and freshwater budgets. Using an independent transport estimate, convergences are converted to transports, which show a high level of spatial coherence. The similarity between Atlantic heat transport and the Agulhas Leakage suggests that it is the source of the surface heat transport anomalies. The freshwater budget in the North Atlantic is dominated by a decrease in freshwater flux. The increasing salinity during the slowdown supports modeling studies that show that heat, not freshwater, drives trends in the overturning circulation in a warming climate. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979640360&doi=10.1002%2f2016GL069789&partnerID=40&md5=1dc8199a5480bf7d62c998aa641a5db0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9802
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: Applied Physics Laboratory, University of Washington, Seattle, WA, United States
Recommended Citation:
Kelly K.A.,Drushka K.,Thompson L.,et al. Impact of slowdown of Atlantic overturning circulation on heat and freshwater transports[J]. Geophysical Research Letters,2016-01-01,43(14).