DOI: 10.1007/s00382-012-1292-5
Scopus记录号: 2-s2.0-84868130438
论文题名: Sensitivity of the Atlantic meridional overturning circulation to South Atlantic freshwater anomalies
作者: Cimatoribus A.A. ; Drijfhout S.S. ; den Toom M. ; Dijkstra H.A.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期: 2017-09-10 起始页码: 2291
结束页码: 2306
语种: 英语
英文关键词: Atlantic meridional overturning circulation
; Biases
; Climate models
; Freshwater budget
; Permanent collapse
; Salinity
; Salt-advection feedback
; South Atlantic
英文摘要: The sensitivity of the Atlantic Meridional Overturning Circulation (AMOC) to changes in basin integrated net evaporation is highly dependent on the zonal salinity contrast at the southern border of the Atlantic. Biases in the freshwater budget strongly affect the stability of the AMOC in numerical models. The impact of these biases is investigated, by adding local anomaly patterns in the South Atlantic to the freshwater fluxes at the surface. These anomalies impact the freshwater and salt transport by the different components of the ocean circulation, in particular the basin-scale salt-advection feedback, completely changing the response of the AMOC to arbitrary perturbations. It is found that an appropriate dipole anomaly pattern at the southern border of the Atlantic Ocean can collapse the AMOC entirely even without a further hosing. The results suggest a new view on the stability of the AMOC, controlled by processes in the South Atlantic. © 2012 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55134
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Royal Netherlands Meteorological Institute, De Bilt, Netherlands; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands
Recommended Citation:
Cimatoribus A.A.,Drijfhout S.S.,den Toom M.,et al. Sensitivity of the Atlantic meridional overturning circulation to South Atlantic freshwater anomalies[J]. Climate Dynamics,2012-01-01,39(2017-09-10)