| Issue |
EPJ Web Conf.
Volume 362, 2026
31st International Laser Radar Conference (ILRC 31) Held Together with the 22nd Coherent Laser Radar Conference (CLRC 22)
|
|
|---|---|---|
| Article Number | 09002 | |
| Number of page(s) | 4 | |
| Section | Lidar Measurements of Trace Gases (including Greenhouse Gases and Water Vapour) | |
| DOI | https://doi.org/10.1051/epjconf/202636209002 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636209002
Is there a correlation between tropospheric ozone and climate?
(a) Karlsruher Institut für Technologie, IMK-IFU, Kreuzeckbahnstr. 19, 82467 Garmisch-Partenkirchen, Germany
(b) Umweltbundesamt, Schneefernerhaus, 82467 Garmisch-Partenkirchen, Germany Lead Author e-mail address: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
Lidar vertical sounding of ozone, water vapour and aerosol at Garmisch-Partenkirchen in the German Alps and long-term in-situ measurements at local mountain stations up to 3 km a.s.l. have been the basis for investigations of atmospheric transport over several decades. The positive ozone trend in the lower free troposphere is dominated by downward transport from the stratosphere. The thin intrusion layers are extremely dry which suggests very low mixing with tropospheric air, in contrast to the traditional view. The related ozone trend at the Zugspitze summit (2962 m a.s.l.) follows the changes in solar radiation. This indicates a correlation of the vertical exchange with the climate. Parallel to this development the background air quality has improved, as demonstrated by the decrease of CO and NOx since 1990.
© The Authors, published by EDP Sciences, 2026
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