DOI: 10.1002/2014GL062668
论文题名: Impact of greenland orography on the atlantic meridional overturning circulation
作者: Davini P. ; Von Hardenberg J. ; Filippi L. ; Provenzale A.
刊名: Geophysical Research Letters
ISSN: 0094-9002
EISSN: 1944-8733
出版年: 2015
卷: 42, 期: 3 起始页码: 871
结束页码: 879
语种: 英语
英文关键词: AMOC
; Greenland orography
; North Atlantic Circulation
Scopus关键词: Climate models
; Earth (planet)
; Earth atmosphere
; AMOC
; Atlantic meridional overturning circulations
; Freshwater inputs
; Global climate model
; Greenland
; Greenland Ice Sheet
; North Atlantic
; North Atlantic Ocean Circulation
; Oceanography
; air-sea interaction
; global climate
; mass transfer
; meridional circulation
; orography
; surface wind
; wind profile
; Arctic
; Atlantic Ocean
; Atlantic Ocean (North)
; Greenland
; Greenland Ice Sheet
英文摘要: We show that the absence of the Greenland ice sheet would have important consequences on the North Atlantic Ocean circulation, even without taking into account the effect of the freshwater input to the ocean from ice melting. These effects are investigated in a 600year long coupled ocean-atmosphere simulation with the high-resolution global climate model EC-Earth 3.0.1. Once a new equilibrium is established, a cooling of Eurasia and of the North Atlantic and a poleward shift of the subtropical jet are observed. These hemispheric changes are ascribed to a weakening of the Atlantic Meridional Overturning Circulation (AMOC) by about 12%. We attribute this slowdown to a reduction in salinity of the Arctic basin and to the related change of the mass and salt transport through the Fram Strait - a consequence of the new surface wind pattern over the lower orography. This idealized experiment illustrates the sensitivity of the AMOC to local surface winds. © 2015 The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925140101&doi=10.1002%2f2014GL062668&partnerID=40&md5=ad37c8a147266d3a336766a6ef4cd2cd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8618
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: Institute of Atmospheric Sciences and Climate, ISAC-CNR, Turin, Italy
Recommended Citation:
Davini P.,Von Hardenberg J.,Filippi L.,et al. Impact of greenland orography on the atlantic meridional overturning circulation[J]. Geophysical Research Letters,2015-01-01,42(3).