Intense Arctic Ozone Depletion in the Spring of 2011

被引：0
|
作者：
Hannigan, James W. [1 ]
Batchelor, Rebecca L. [1 ]
Coffey, M. T. [1 ]
机构：
[1] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80305 USA
来源：
ARCTIC | 2012年 / 65卷 / 03期
基金：
美国国家科学基金会; 美国国家航空航天局;
关键词：
Greenland; ozone; polar vortex; FTS; remote sensing; WINTER; PARTICLES; CHEMISTRY;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Observations of record-breaking ozone depletion during the Arctic spring of 2011 were made at 76 degrees N in Thule, Greenland. The ozone total column amount of 290 DU measured on 18 March 2011 is the lowest value from the 12-year observation record and represents an ozone depletion of up to 48% of a typical March column. The unique 2010-11 vortex was characterized by sustained low stratospheric temperatures and stability that resisted breakup through March. Simultaneous observations of O-3, HF, HCl, HNO3, and CIONO2 demonstrate strong subsidence and substantial conversion of chlorine from its normal reservoirs.
引用
收藏
页码：339 / 343
页数：5
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