DOI: 10.1007/s00382-015-2907-4
Scopus记录号: 2-s2.0-84983223885
论文题名: Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model
作者: Lenaerts J.T.M. ; Vizcaino M. ; Fyke J. ; van Kampenhout L. ; van den Broeke M.R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-05-06 起始页码: 1367
结束页码: 1381
语种: 英语
英文关键词: Antarctica
; Climate change
; Climate modelling
; Ice sheets
; Sea level
; Surface mass balance
英文摘要: We present climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS) as simulated by the global, coupled ocean–atmosphere–land Community Earth System Model (CESM) with a horizontal resolution of ∼ 1 ∘ in the past, present and future (1850–2100). CESM correctly simulates present-day Antarctic sea ice extent, large-scale atmospheric circulation and near-surface climate, but fails to simulate the recent expansion of Antarctic sea ice. The present-day Antarctic ice sheet SMB equals 2280 ± 131 Gtyear-1, which concurs with existing independent estimates of AIS SMB. When forced by two CMIP5 climate change scenarios (high mitigation scenario RCP2.6 and high-emission scenario RCP8.5), CESM projects an increase of Antarctic ice sheet SMB of about 70 Gtyear-1 per degree warming. This increase is driven by enhanced snowfall, which is partially counteracted by more surface melt and runoff along the ice sheet’s edges. This intensifying hydrological cycle is predominantly driven by atmospheric warming, which increases (1) the moisture-carrying capacity of the atmosphere, (2) oceanic source region evaporation, and (3) summer AIS cloud liquid water content. © 2016, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53545
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Princetonplein 5, Utrecht, Netherlands; Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands; Los Alamos National Laboratory, Los Alamos, NM, United States
Recommended Citation:
Lenaerts J.T.M.,Vizcaino M.,Fyke J.,et al. Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model[J]. Climate Dynamics,2016-01-01,47(2017-05-06)