DOI: 10.1002/2013GL058454
论文题名: Influence of the atlantic meridional overturning circulation on the monsoon rainfall and carbon balance of the American tropics
作者: Parsons L.A. ; Yin J. ; Overpeck J.T. ; Stouffer R.J. ; Malyshev S.
刊名: Geophysical Research Letters
ISSN: 0094-10513
EISSN: 1944-10244
出版年: 2014
卷: 41, 期: 1 起始页码: 146
结束页码: 151
语种: 英语
英文关键词: Amazonia
; Atlantic
; carbon
; freshening
; hosing
; precipitation
Scopus关键词: Amazonia
; Atlantic
; Atlantic meridional overturning circulations
; Earth system model
; freshening
; hosing
; Precipitation change
; Primary productivity
; Atmospheric thermodynamics
; Carbon
; Precipitation (chemical)
; Rain
; Tropics
; Water
; Oceanography
; carbon balance
; carbon cycle
; meridional circulation
; monsoon
; overturn
; rainfall
; seasonal variation
; simulation
; Atlantic Ocean
; Atlantic Ocean (Tropical)
英文摘要: We examine the response of the American Tropics to changes in Atlantic Meridional Overturning Circulation (AMOC) strength using a set of water-hosing experiments with an Earth system model that explicitly simulates the global and regional carbon cycle. We find that a moderate weakening (27%) of the AMOC, induced by a 0.1 Sv (1 Sv ≡ 106 m3 s-1) freshwater addition in the northern North Atlantic, drives small but statistically significant drying in the South American monsoon region. By contrast, a complete shutdown of the AMOC, induced by a 1.0 Sv freshwater addition, acts to considerably shift the ITCZ southward, which changes the seasonal cycle of precipitation over Amazonia. Our results indicate that AMOC weakening can have a significant impact on the terrestrial primary productivity and carbon storage of the American Tropics. Key Points AMOC changes drive precipitation change in Central and northern South America Changes in AMOC shift carbon storage and the timing of the Amazonian monsoon Decreased seasonality of rainfall changes carbon storage in the tropics ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896707902&doi=10.1002%2f2013GL058454&partnerID=40&md5=6ffdf5fc9260e9161d5477ab7c02603c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7777
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geosciences, University of Arizona, Tucson, AZ 85721x, United States
Recommended Citation:
Parsons L.A.,Yin J.,Overpeck J.T.,et al. Influence of the atlantic meridional overturning circulation on the monsoon rainfall and carbon balance of the American tropics[J]. Geophysical Research Letters,2014-01-01,41(1).