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美研究发现消耗臭氧层物质的减少使南极臭氧层正在恢复 快报文章
气候变化快报,2025年第6期
作者:  廖琴
Microsoft Word(13Kb)  |  收藏  |  浏览/下载:387/0  |  提交时间:2025/03/20
Antarctic Ozone  Ozone-depleting Substances  
A pause in Southern Hemisphere circulation trends due to the Montreal Protocol 期刊论文
NATURE, 2020, 579 (7800) : 544-548
作者:  Imai, Yu;  Meyer, Kirsten J.;  Iinishi, Akira;  Favre-Godal, Quentin;  Green, Robert;  Manuse, Sylvie;  Caboni, Mariaelena;  Mori, Miho;  Niles, Samantha;  Ghiglieri, Meghan;  Honrao, Chandrashekhar;  Ma, Xiaoyu;  Guo, Jason J.;  Makriyannis, Alexandros;  Linares-Otoya, Luis;  Boehringer, Nils;  Wuisan, Zerlina G.;  Kaur, Hundeep;  Wu, Runrun;  Mateus, Andre
收藏  |  浏览/下载:45/0  |  提交时间:2020/05/13

Observations show robust near-surface trends in Southern Hemisphere tropospheric circulation towards the end of the twentieth century, including a poleward shift in the mid-latitude jet(1,2), a positive trend in the Southern Annular Mode(1,3-6) and an expansion of the Hadley cell(7,8). It has been established that these trends were driven by ozone depletion in the Antarctic stratosphere due to emissions of ozone-depleting substances(9-11). Here we show that these widely reported circulation trends paused, or slightly reversed, around the year 2000. Using a pattern-based detection and attribution analysis of atmospheric zonal wind, we show that the pause in circulation trends is forced by human activities, and has not occurred owing only to internal or natural variability of the climate system. Furthermore, we demonstrate that stratospheric ozone recovery, resulting from the Montreal Protocol, is the key driver of the pause. Because pre-2000 circulation trends have affected precipitation(12-14), and potentially ocean circulation and salinity(15-17), we anticipate that a pause in these trends will have wider impacts on the Earth system. Signatures of the effects of the Montreal Protocol and the associated stratospheric ozone recovery might therefore manifest, or have already manifested, in other aspects of the Earth system.


  
Simulating the Antarctic stratospheric vortex transport barrier: comparing the Unified Model to reanalysis 期刊论文
CLIMATE DYNAMICS, 2019, 53: 441-452
作者:  Cameron, Chris;  Bodeker, Gregory E.;  Conway, Jonathan P.;  Stuart, Stephen;  Renwick, James
收藏  |  浏览/下载:21/0  |  提交时间:2019/11/27
Antarctic stratospheric circumpolar vortex  Meridional impermeability  Dynamical isolation  Unified Model  NCEP-CFSR reanalysis  Ozone hole  Global climate models  Climate change  
Stratospheric Ozone Depletion: An Unlikely Driver of the Regional Trends in Antarctic Sea Ice in Austral Fall in the Late Twentieth Century 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2017, 44 (21)
作者:  Landrum, Laura L.;  Holland, Marika M.;  Raphael, Marilyn N.;  Polvani, Lorenzo M.
收藏  |  浏览/下载:22/0  |  提交时间:2019/04/09
Antarctic sea ice trends  stratrospheric ozone depletion  Amundsen Sea Low