Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12213-2025
https://doi.org/10.5194/acp-25-12213-2025
Research article
 | 
07 Oct 2025
Research article |  | 07 Oct 2025

Shift in cold-point tropopause trends derived from radiosonde, satellite and reanalysis data

Mona Zolghadrshojaee, Susann Tegtmeier, Sean M. Davis, Robin Pilch Kedzierski, and Leopold Haimberger

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Variability and long-term changes in tropical cold-point temperature and water vapor
Mona Zolghadrshojaee, Susann Tegtmeier, Sean M. Davis, and Robin Pilch Kedzierski
Atmos. Chem. Phys., 24, 7405–7419, https://doi.org/10.5194/acp-24-7405-2024,https://doi.org/10.5194/acp-24-7405-2024, 2024
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Cited articles

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Short summary
The tropical tropopause layer (TTL) is a crucial region where the troposphere transitions into the stratosphere, influencing air mass transport. This study examines temperature trends in the TTL and lower stratosphere using data from weather balloons, satellites and reanalysis datasets. We found cooling trends in the TTL from 1980 to 2001, followed by warming from 2002 to 2023. These shifts are linked to changes in atmospheric circulation and impact water vapour transport into the stratosphere.
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