DOI: 10.1002/2015GL065695
论文题名: On the suitability of North Brazil Current transport estimates for monitoring basin-scale AMOC changes
作者: Rühs S. ; Getzlaff K. ; Durgadoo J.V. ; Biastoch A. ; Böning C.W.
刊名: Geophysical Research Letters
ISSN: 0094-8552
EISSN: 1944-8283
出版年: 2015
卷: 42, 期: 19 起始页码: 8072
结束页码: 8080
语种: 英语
英文关键词: Atlantic meridional overturning circulation
; buoyancy-driven variability
; ocean general circulation modeling
; tropical Atlantic circulation
; wind-driven variability
Scopus关键词: Buoyancy
; Flow of water
; Atlantic meridional overturning circulations
; Buoyancy-driven
; Monitoring system
; North brazil currents
; Ocean general circulation models
; Transport variability
; Tropical atlantic
; Wind-driven circulation
; Oceanography
; buoyancy
; decadal variation
; gyre
; hindcasting
; meridional circulation
; oceanic general circulation model
; overturn
; wind-driven circulation
; Atlantic Ocean
; Atlantic Ocean (Tropical)
; Brazil Current
英文摘要: The North Brazil Current (NBC) constitutes a bottleneck for the mean northward return flow of the Atlantic Meridional Overturning Circulation (AMOC) in the tropical South Atlantic. Previous studies suggested a link between interannual to multidecadal NBC and AMOC transport variability and proposed to use NBC observations as an index for the AMOC. Here we use a set of hindcast, sensitivity, and perturbation experiments performed within a hierarchy of ocean general circulation models to show that decadal to multidecadal buoyancy-forced changes in the basin-scale AMOC transport indeed manifest themselves in the NBC. The relation is, however, masked by a strong interannual to decadal wind-driven gyre variability of the NBC. While questioning the NBC transport as a "direct" index for the AMOC, the results support its potential merit for an AMOC monitoring system, provided that the wind-driven circulation variability is properly accounted for. Key Points Set of ocean model hindcasts yields a robust interannual to decadal variability of the NBC AMOC trends are manifested in the NBC but superimposed by wind-driven gyre changes An NBC transport array can be a useful component of an AMOC monitoring system © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947039164&doi=10.1002%2f2015GL065695&partnerID=40&md5=8d151a073aa6f8979085a496ee6344f3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8168
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: GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
Recommended Citation:
Rühs S.,Getzlaff K.,Durgadoo J.V.,et al. On the suitability of North Brazil Current transport estimates for monitoring basin-scale AMOC changes[J]. Geophysical Research Letters,2015-01-01,42(19).