Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089547 |
Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020 | |
I. Wohltmann; P. von der Gathen; R. Lehmann; M. Maturilli; H. Deckelmann; G. L. Manney; J. Davies; D. Tarasick; N. Jepsen; R. Kivi; N. Lyall; M. Rex | |
2020-09-28 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
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, ozone sonde 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. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/297874 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | I. Wohltmann,P. von der Gathen,R. Lehmann,et al. Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020[J]. Geophysical Research Letters,2020. |
APA | I. Wohltmann.,P. von der Gathen.,R. Lehmann.,M. Maturilli.,H. Deckelmann.,...&M. Rex.(2020).Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020.Geophysical Research Letters. |
MLA | I. Wohltmann,et al."Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020".Geophysical Research Letters (2020). |
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