Articles | Volume 36, issue 5
https://doi.org/10.5194/angeo-36-1403-2018
https://doi.org/10.5194/angeo-36-1403-2018
Regular paper
 | 
19 Oct 2018
Regular paper |  | 19 Oct 2018

Strong downdrafts preceding rapid tropopause ascent and their potential to identify cross-tropopause stratospheric intrusions

Feilong Chen, Gang Chen, Chunhua Shi, Yufang Tian, Shaodong Zhang, and Kaiming Huang

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Latest update: 18 Apr 2024
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Short summary
Downward stratospheric intrusions are well known as an important source of tropospheric ozone. In the light of the present understanding, several unanswered questions remain regarding the use of VHF radars to identify stratospheric intrusions. Our study found that the radar-observed strong downdrafts preceding the rapid tropopause ascent are a strong diagnostic for possible intrusions. This will have important implications for air-quality monitoring and long-term estimation of troposphere ozone.