Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091911 |
Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol | |
Wuhu Feng; Sandip S. Dhomse; Carlo Arosio; Mark Weber; John P. Burrows; Michelle L. Santee; Martyn P. Chipperfield | |
2021-02-06 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | We use a 3‐D chemical transport model and satellite observations to investigate Arctic ozone depletion in winter/spring 2019/20 and compare with earlier years. Persistently low temperatures caused extensive chlorine activation through to March. March‐mean polar‐cap‐mean modelled chemical column ozone loss reached 78 DU (local maximum loss of ∼108 DU in the vortex), similar to that in 2011. However, weak dynamical replenishment of only 59 DU from December to March was key to producing very low (<220 DU) column ozone values. The only other winter to exhibit such weak transport in the past 20 years was 2010/11, so this process is fundamental to causing such low ozone values. A model simulation with peak observed stratospheric total chlorine and bromine loading (from the mid‐1990s) shows that gradual recovery of the ozone layer over the past two decades ameliorated the polar cap ozone depletion in March 2020 by ∼20 DU. |
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/313761 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Wuhu Feng,Sandip S. Dhomse,Carlo Arosio,et al. Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol[J]. Geophysical Research Letters,2021. |
APA | Wuhu Feng.,Sandip S. Dhomse.,Carlo Arosio.,Mark Weber.,John P. Burrows.,...&Martyn P. Chipperfield.(2021).Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol.Geophysical Research Letters. |
MLA | Wuhu Feng,et al."Arctic ozone depletion in 2019/20: Roles of chemistry, dynamics and the Montreal Protocol".Geophysical Research Letters (2021). |
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