Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095848 |
Wildfire Smoke Highlights Troposphere to Stratosphere Pathway | |
Leehi Magaritz-Ronen; Shira Raveh-Rubin | |
2021-11-24 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Following the 2020 wildfires in Australia an extremely large amount of smoke entered the stratosphere and was dispersed throughout the southern hemisphere stratosphere. However, the pathway and entry point of the smoke into the stratosphere and the underlying mechanism remained unclear. Here, Lagrangian trajectory analysis is used to examine the flow downstream of the fires in the south Pacific, where the smoke was detected. We find that tropical cyclone Sarai merged with an extratropical cyclone to form a troposphere-wide cyclonic system, with a deep potential vorticity cutoff above it. The smoke first traveled in the isentropic layer between 340-350°K. Having reached the cyclone, the smoke circulated and entered the stratosphere through a dip in the tropopause height within the cutoff. The cyclone described in this case study is not uncommon in these regions, possibly underscoring the importance of this mechanism for troposphere-to-stratosphere exchange. |
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/342412 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Leehi Magaritz-Ronen,Shira Raveh-Rubin. Wildfire Smoke Highlights Troposphere to Stratosphere Pathway[J]. Geophysical Research Letters,2021. |
APA | Leehi Magaritz-Ronen,&Shira Raveh-Rubin.(2021).Wildfire Smoke Highlights Troposphere to Stratosphere Pathway.Geophysical Research Letters. |
MLA | Leehi Magaritz-Ronen,et al."Wildfire Smoke Highlights Troposphere to Stratosphere Pathway".Geophysical Research Letters (2021). |
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