globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-13-00657.1
Scopus记录号: 2-s2.0-84919779586
论文题名:
Sensitivity of the Amundsen sea low to stratospheric ozone depletion
作者: Fogt R.L.; Zbacnik E.A.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期:24
起始页码: 9383
结束页码: 9400
语种: 英语
Scopus关键词: Atmospherics ; Climate change ; Computer simulation ; Ozone ; Ozone layer ; Sea ice ; Storms ; Antarctica ; Chemistry-climate models ; Coupled Model Intercomparison Project ; Geo-potential heights ; Historical simulation ; Stratospheric circulations ; Stratospheric ozone depletion ; Trends ; Climate models ; atmospheric circulation ; atmospheric modeling ; climate modeling ; ozone depletion ; sea ice ; sensitivity analysis ; stratosphere ; trend analysis ; Amundsen Sea ; Antarctic Peninsula ; Antarctica ; Bellingshausen Sea ; Southern Ocean ; West Antarctica
英文摘要: Dramatic sea ice loss in the Amundsen and Bellingshausen Seas and regional warming in West Antarctica and the Antarctica Peninsula have been observed over the last few decades. Both of these changes are strongly influenced by the presence of the Amundsen Sea low (ASL), a climatological region of low pressure in the Amundsen Sea. Studies have demonstrated a deepening of the ASL, particularly in austral spring and to a lesser extent autumn, the former related to decreases in the underlying cyclone central pressures and the latter previously suggested to be due to stratospheric ozone depletion. This study further investigates the sensitivity of the ASL to stratospheric ozone depletion using geopotential height from a suite of chemistry-climate models (CCMs) as well as historical simulations from phase 5 of the Coupled Model Intercomparison Project (CMIP5). Overall, both model types capture the mean characteristics of the ASL, although they have notable positive height biases at 850 hPa and a subdued seasonal cycle in its longitudinal position.Comparing across model simulations, it is observed that there is a pronounced influence of stratospheric ozone depletion in the vicinity of theASL in the stratosphere through the lower troposphere during austral summer, consistentwith the positive phase of the southern annularmode. In the autumn, the authors note a weaker, secondary influence of stratospheric ozone depletion on the ASL only in the CMIP5 simulations.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51042
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作者单位: Scalia Laboratory for Atmospheric Analysis and Department of Geography, Ohio University, Athens, OH, United States

Recommended Citation:
Fogt R.L.,Zbacnik E.A.. Sensitivity of the Amundsen sea low to stratospheric ozone depletion[J]. Journal of Climate,2014-01-01,27(24)
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