DOI: 10.1002/2016GL068878
论文题名: Quantifying Greenland freshwater flux underestimates in climate models
作者: Little C.M. ; Piecuch C.G. ; Chaudhuri A.H.
刊名: Geophysical Research Letters
ISSN: 0094-9632
EISSN: 1944-9363
出版年: 2016
卷: 43, 期: 10 起始页码: 5370
结束页码: 5377
语种: 英语
英文关键词: climate
; freshwater
; Greenland
; overturning
; runoff
; sea level
Scopus关键词: Budget control
; Parameterization
; Runoff
; Sea level
; Water
; Climate
; Current generation
; Freshwater
; Global mean sea levels
; Greenland
; Greenland Ice Sheet
; North Atlantic Ocean
; Overturning
; Climate models
英文摘要: Key processes regulating the mass balance of the Greenland Ice Sheet (GIS) are not represented in current-generation climate models. Here using output from 19 different climate models forced with a high-end business-as-usual emissions pathway, we compare modeled freshwater fluxes (FWF) to a parameterization based on midtropospheric temperature. By the mid 21st century, parameterized GIS FWF is 478 ± 215 km3 yr−1 larger than modeled—over 3 times the 1992–2011 rate of GIS mass loss. By the late 21st century, ensemble mean parameterized GIS FWF anomalies are comparable to FWF anomalies over the northern North Atlantic Ocean, equivalent to approximately 11 cm of global mean sea level rise. The magnitude and spread of these underestimates underscores the need for assessments of the coupled response of the ocean to increased FWF that recognize: (1) the widely varying freshwater budgets of each model and (2) uncertainty in the relationship between GIS FWF and atmospheric temperature. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971577002&doi=10.1002%2f2016GL068878&partnerID=40&md5=a07bb9553624491944e7e435720e8544
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10595
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: Atmospheric and Environmental Research, Inc., Lexington, MA, United States
Recommended Citation:
Little C.M.,Piecuch C.G.,Chaudhuri A.H.. Quantifying Greenland freshwater flux underestimates in climate models[J]. Geophysical Research Letters,2016-01-01,43(10).