Articles | Volume 17, issue 11
https://doi.org/10.5194/acp-17-6825-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-6825-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
12 Jun 2017
Research article |
| 12 Jun 2017
Mean age of stratospheric air derived from AirCore observations
Andreas Engel
CORRESPONDING AUTHOR
Institute for Atmospheric and Environmental Science, Goethe
University Frankfurt, Frankfurt, Germany
Harald Bönisch
Institute for Atmospheric and Environmental Science, Goethe
University Frankfurt, Frankfurt, Germany
now at: Karlsruhe Institute of Technology, KIT, Karlsruhe, Germany
Markus Ullrich
Institute for Atmospheric and Environmental Science, Goethe
University Frankfurt, Frankfurt, Germany
Robert Sitals
Institute for Atmospheric and Environmental Science, Goethe
University Frankfurt, Frankfurt, Germany
Olivier Membrive
Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole
polytechnique, Université Paris-Saclay, Palaiseau, France
Francois Danis
Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole
polytechnique, Université Paris-Saclay, Palaiseau, France
Cyril Crevoisier
Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole
polytechnique, Université Paris-Saclay, Palaiseau, France
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Latest update: 02 Apr 2025
Short summary
AirCore is new technique for sampling stratospheric air. We present new observations of CO2 and CH4 using AirCore and derive stratospheric transport time, called the mean age of air. The purpose of using AirCore is to provide a cost-effective tool for deriving mean age. Mean age may serve as a proxy to investigate changes in stratospheric circulation. We show that there is no statistically significant trend in our 40-year time series of mean age, which is now extended using AirCore.
AirCore is new technique for sampling stratospheric air. We present new observations of CO2 and...
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