DOI: 10.1175/JCLI-D-13-00367.1
Scopus记录号: 2-s2.0-84905180039
论文题名: Oceanic forcing of Antarctic climate change: A study using a stretched-grid atmospheric general circulation model
作者: Krinner G. ; Largeron C. ; Ménégoz M. ; Agosta C. ; Brutel-Vuilmet C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 15 起始页码: 5786
结束页码: 5800
语种: 英语
Scopus关键词: Climate change
; Conformal mapping
; Greenhouse gases
; Antarctica
; Atmospheric circulation model
; Atmospheric general circulation models
; Climate change projections
; Coupled Model Intercomparison Project
; Ice sheet
; Sea-surface conditions
; Special report on emissions scenarios
; Climate models
; atmospheric general circulation model
; boundary condition
; climate change
; climate modeling
; computer simulation
; greenhouse gas
; ice sheet
; precipitation (climatology)
; sea surface
; Antarctica
英文摘要: A variable-resolution atmospheric general circulation model (AGCM) is used for climate change projections over the Antarctic. The present-day simulation uses prescribed observed sea surface conditions, while a set of five simulations for the end of the twenty-first century (2070-99) under the Special Report on Emissions Scenarios (SRES) A1B scenario uses sea surface condition anomalies from selected coupled ocean-atmosphere climate models from phase 3 of the Coupled Model Intercomparison Project (CMIP3). Analysis of the results shows that the prescribed sea surface condition anomalies have a very strong influence on the simulated climate change on the Antarctic continent, largely dominating the direct effect of the prescribed greenhouse gas concentration changes in the AGCM simulations. Complementary simulations with idealized forcings confirm these results. An analysis of circulation changes using self-organizing maps shows that the simulated climate change on regional scales is not principally caused by shifts of the frequencies of the dominant circulation patterns, except for precipitation changes in some coastal regions. The study illustrates that in some respects the use of bias-corrected sea surface boundary conditions in climate projections with a variable-resolution atmospheric general circulation model has some distinct advantages over the use of limited-area atmospheric circulation models directly forced by generally biased coupled climate model output. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51090
Appears in Collections: 气候变化事实与影响
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作者单位: LGGE (CNRS and Université de Grenoble Alpes), Grenoble, France; Department of Geography, University of Liège, Liège, Belgium
Recommended Citation:
Krinner G.,Largeron C.,Ménégoz M.,et al. Oceanic forcing of Antarctic climate change: A study using a stretched-grid atmospheric general circulation model[J]. Journal of Climate,2014-01-01,27(15)