气候变化领域集成服务门户(CCPortal): Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020

CCPortal

DOI	10.1029/2020GL089547
	Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020
	Wohltmann I.; von der Gathen P.; Lehmann R.; Maturilli M.; Deckelmann H.; Manney G.L.; Davies J.; Tarasick D.; Jepsen N.; Kivi R.; Lyall N.; Rex M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:20
英文摘要	In the Antarctic ozone hole, ozone mixing ratios have been decreasing to extremely low values of 0.01–0.1 ppm in nearly all spring seasons since the late 1980s, corresponding to 95–99% local chemical loss. In contrast, Arctic ozone loss has been much more limited and mixing ratios have never before fallen below 0.5 ppm. In Arctic spring 2020, however, ozonesonde measurements in the most depleted parts of the polar vortex show a highly depleted layer, with ozone loss averaged over sondes peaking at 93% at 18 km. Typical minimum mixing ratios of 0.2 ppm were observed, with individual profiles showing values as low as 0.13 ppm (96% loss). The reason for the unprecedented chemical loss was an unusually strong, long-lasting, and cold polar vortex, showing that for individual winters the effect of the slow decline of ozone-depleting substances on ozone depletion may be counteracted by low temperatures. ©2020. The Authors.
英文关键词	Meteorological instruments; Mixing; Ozone; Vortex flow; Antarctic ozone hole; Arctic ozone loss; Low temperatures; Ozone depleting substances; Ozone depletion; Ozone mixing ratio; Ozonesonde measurements; Stratospheric ozone; Ozone layer; low temperature; ozone; ozone depletion; ozonesonde; polar vortex; seasonal variation; spring (season); stratosphere; Arctic
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169581
作者单位	Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany; NorthWest Research Associates, Socorro, NM, United States; New Mexico Institute of Mining and Technology, Socorro, NM, United States; Air Quality Research Division, Environment and Climate Change Canada, Downsview, ON, Canada; Danish Meteorological Institute, Copenhagen, Denmark; Space and Earth Observation Centre, Finnish Meteorological Institute, Sodankylä, Finland; Lerwick Observatory, UK Met Office, Shetland Islands, United Kingdom
推荐引用方式 GB/T 7714	Wohltmann I.,von der Gathen P.,Lehmann R.,et al. Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020[J],2020,47(20).
APA	Wohltmann I..,von der Gathen P..,Lehmann R..,Maturilli M..,Deckelmann H..,...&Rex M..(2020).Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020.Geophysical Research Letters,47(20).
MLA	Wohltmann I.,et al."Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020".Geophysical Research Letters 47.20(2020).