DOI: 10.1175/JCLI-D-11-00183.1
Scopus记录号: 2-s2.0-84862073192
论文题名: The climate response to stratospheric sulfate injections and implications for addressing climate emergencies
作者: McCusker K.E. ; Battisti D.S. ; Bitz C.M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 9 起始页码: 3096
结束页码: 3116
语种: 英语
Scopus关键词: Arctic sea ice
; Atmosphere-ocean interactions
; Atmospheric circulation anomaly
; Community climate system model
; Geoengineering
; High Latitudes
; Ocean dynamics
; Parameterized
; Polar ice sheets
; Polar Regions
; Regional climate
; Regional effects
; Sulfate aerosols
; Temperature changes
; Tropical climates
; Atmospheric aerosols
; Carbon dioxide
; Climate change
; Climatology
; Computer simulation
; Dynamics
; Global warming
; Greenhouse gases
; Sea ice
; Sulfur compounds
; Climate models
; aerosol
; air-sea interaction
; atmospheric circulation
; climate change
; climate modeling
; global warming
; greenhouse gas
; ice sheet
; stratosphere
英文摘要: Stratospheric sulfate aerosol injection has been proposed to counteract anthropogenic greenhouse gas warming and prevent regional climate emergencies. Global warming is projected to be largest in the polar regions, where consequences to climate change could be emergent, but where the climate response to global warming is also most uncertain. The Community Climate System Model, version 3, is used to evaluate simulations with enhanced CO 2 and prescribed stratospheric sulfate to investigate the effects on regional climate. To further explore the sensitivity of these regions to ocean dynamics, a suite of simulations with and without ocean dynamics is run. The authors find that, when global average warming is roughly canceled by aerosols, temperature changes in the polar regions are still 20%-50%of the changes in a warmed world. Atmospheric circulation anomalies are also not canceled, which affects the regional climate response. It is also found that agreement between simulations with and without ocean dynamics is poorest in the high latitudes. The polar climate is determined by processes that are highly parameterized in climate models. Thus, one should expect that the projected climate response to geoengineering will be at least as uncertain in these regions as it is to increasing greenhouse gases. In the context of climate emergencies, such as melting arctic sea ice and polar ice sheets and a food crisis due to a heated tropics, the authors find that, while it may be possible to avoid tropical climate crises, preventing polar climate emergencies is not certain. A coordinated effort across modeling centers is required to generate a more robust depiction of a geoengineered climate. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52436
Appears in Collections: 气候变化事实与影响
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作者单位: University of Washington, Seattle, WA, United States
Recommended Citation:
McCusker K.E.,Battisti D.S.,Bitz C.M.. The climate response to stratospheric sulfate injections and implications for addressing climate emergencies[J]. Journal of Climate,2012-01-01,25(9)