Journal article

Meridional and vertical variations of the water vapour isotopic composition in the marine boundary layer over the Atlantic and Southern Ocean

Iris Thurnherr, Anna Kozachek, Pascal Graf, Yongbiao Weng, Dimitri Bolshiyanov, Sebastian Landwehr, Stephan Pfahl, Julia Schmale, Harald Sodemann, Hans Christian Steen-Larsen, Alessandro Toffoli, Heini Wernli, Franziska Aemisegger

Atmospheric Chemistry and Physics | Copernicus Publications | Published : 2020

Abstract

Stable water isotopologues (SWIs) are useful tracers of moist diabatic processes in the atmospheric water cycle. They provide a framework to analyse moist processes on a range of timescales from large-scale moisture transport to cloud formation, precipitation and small-scale turbulent mixing. Laser spectrometric measurements on research vessels produce high-resolution time series of the variability of the water vapour isotopic composition in the marine boundary layer. In this study, we present a 5-month continuous time series of such ship-based measurements of δ2H and δ18O from the Antarctic Circumnavigation Expedition (ACE) in the Atlantic and the Southern Ocean in the time period from Nove..

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Grants

Awarded by RFBR


Awarded by Swiss Data Science Center


Funding Acknowledgements

Iris Thurnherr and Julia Schmale received funding from the ACE Foundation and Ferring Pharmaceuticals. Anna Kozachek was supported by RFBR (grant no. 18-55-16001). Sebastian Landwehr received funding from the Swiss Data Science Center (grant no. 17-02). Harald Sodemann and Yongbiao Weng were supported by the RCN project FARLAB.