Articles | Volume 2, issue 2
https://doi.org/10.5194/wcd-2-331-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-2-331-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Apr 2021
Research article |
| 14 Apr 2021
| 14 Apr 2021
The role of air–sea fluxes for the water vapour isotope signals in the cold and warm sectors of extratropical cyclones over the Southern Ocean
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
now at: Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway
Katharina Hartmuth
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
Lukas Jansing
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
Josué Gehring
Environmental Remote Sensing Laboratory, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
Maxi Boettcher
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
Irina Gorodetskaya
Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, Aveiro, Portugal
Martin Werner
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany
Heini Wernli
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
Franziska Aemisegger
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
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Latest update: 27 Jul 2025
Short summary
Extratropical cyclones are important for the transport of moisture from low to high latitudes. In this study, we investigate how the isotopic composition of water vapour is affected by horizontal temperature advection associated with extratropical cyclones using measurements and modelling. It is shown that air–sea moisture fluxes induced by this horizontal temperature advection lead to the strong variability observed in the isotopic composition of water vapour in the marine boundary layer.
Extratropical cyclones are important for the transport of moisture from low to high latitudes....
