DOI: 10.1038/ngeo2641
论文题名: Enhanced Atlantic sea-level rise relative to the Pacific under high carbon emission rates
作者: Krasting J.P. ; Dunne J.P. ; Stouffer R.J. ; Hallberg R.W.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2016
卷: 9, 期: 3 起始页码: 210
结束页码: 214
语种: 英语
Scopus关键词: atmosphere-ocean coupling
; carbon emission
; flushing
; general circulation model
; greenhouse gas
; historical perspective
; sea level change
; warming
; Atlantic Ocean
; Pacific Ocean
英文摘要: Thermal expansion of the ocean in response to warming is an important component of historical sea-level rise. Observational studies show that the Atlantic and Southern oceans are warming faster than the Pacific Ocean. Here we present simulations using a numerical atmospheric-ocean general circulation model with an interactive carbon cycle to evaluate the impact of carbon emission rates, ranging from 2 to 25 GtC yr-1, on basin-scale ocean heat uptake and sea level. For simulations with emission rates greater than 5 GtC yr-1, sea-level rise is larger in the Atlantic than Pacific Ocean on centennial timescales. This basin-scale asymmetry is related to the shorter flushing timescales and weakening of the overturning circulation in the Atlantic. These factors lead to warmer Atlantic interior waters and greater thermal expansion. In contrast, low emission rates of 2 and 3 GtC yr-1 will cause relatively larger sea-level rise in the Pacific on millennial timescales. For a given level of cumulative emissions, sea-level rise is largest at low emission rates. We conclude that Atlantic coastal areas may be particularly vulnerable to near-future sea-level rise from present-day high greenhouse gas emission rates. © 2016 Macmillan Publishers Limited. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106067
Appears in Collections: 气候减缓与适应 科学计划与规划
There are no files associated with this item.
作者单位: NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
Recommended Citation:
Krasting J.P.,Dunne J.P.,Stouffer R.J.,et al. Enhanced Atlantic sea-level rise relative to the Pacific under high carbon emission rates[J]. Nature Geoscience,2016-01-01,9(3)