Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 23
Articles | Volume 25, issue 23
https://doi.org/10.5194/acp-25-18209-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-18209-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 23
Research article
 | 
11 Dec 2025
Research article |  | 11 Dec 2025

Observations of stratospheric streamers and frozen-in anticyclones in aerosol extinction

Christian Löns, Ronald Eixmann, Christine Pohl, Alexei Rozanov, and Christian von Savigny

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Short summary
During the polar vortex season, so-called streamers can transport tropical air towards the pole in the middle stratosphere. This tropical air can get trapped in high-pressure areas at high latitudes after the polar vortex breaks down. In this study, remote sensing instruments are used to observe the course of such streamers by measuring the scattered solar radiation. Aerosols get transported to high latitudes at an altitude of about 25–35 km, increasing the aerosol mass there significantly.
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