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

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

doi:https://doi.org/10.5194/acp-20-5811-2020

Articles | Volume 20, issue 9

https://doi.org/10.5194/acp-20-5811-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-5811-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 9

Research article

|

15 May 2020

Research article |

| 15 May 2020

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, and Franziska Aemisegger

Supplement

https://doi.org/10.5194/acp-20-5811-2020-supplement

Data sets

Raw stable water isotope measurements in water vapour at 13.5 m a.s.l., made in the austral summer of 2016/2017 during the Antarctic Circumnavigation Expedition (ACE). I. Thurnherr and F. Aemisegger https://doi.org/10.5281/zenodo.3664177

Calibrated data of stable water isotope measurements in water vapour at 13.5 m a.s.l., made in the austral summer of 2016/2017 around the Southern Ocean during the Antarctic Circumnavigation Expedition (ACE). I. Thurnherr and F. Aemisegger https://doi.org/10.5281/zenodo.3250790

Raw stable water isotope measurements in water vapour at 8 m a.s.l. on the port side of the ship, made in the austral summer of 2016/2017 during the Antarctic Circumnavigation Expedition (ACE). A. Kozachek https://doi.org/10.5281/zenodo.3667507

Calibrated data of stable water isotope measurements in water vapour at 8 m a.s.l. on the port side of the ship, made in the austral summer of 2016/2017 around the Southern Ocean during the Antarctic Circumnavigation Expedition. A. Kozachek and I. Thurnherr https://doi.org/10.5281/zenodo.3739354

Raw stable water isotope measurements in water vapour at 8 m a.s.l. on the starboard side of the ship, made in the austral summer of 2016/2017 during the Antarctic Circumnavigation Expedition (ACE). A. Kozachek https://doi.org/10.5281/zenodo.3667535

Calibrated data of stable water isotope measurements in water vapour at 8 m a.s.l. on the starboard side of the ship, made in the austral summer of 2016/2017 around the Southern Ocean during the Antarctic Circumnavigation Expedition. A. Kozachek and I. Thurnherr https://doi.org/10.5281/zenodo.3739335

Quality-checked meteorological data from the Southern Ocean collected during the Antarctic Circumnavigation Expedition from December 2016 to April 2017 S. Landwehr, J. Thomas, I. Gorodetskaya, I. Thurnherr, C. Robinson, and J. Schmal https://doi.org/10.5281/zenodo.3379590

Antarctic Circumnavigation Expedition 2016-2017: WAMOS data A. Alberello, L. Bennetts, A. Toffoli, and M. H. Derkani https://doi.org/10.4225/15/5a17923429cb7

Model code and software

Python script to calibration stable water isotope measurements in water vapour measured during the Antarctic Circumnavigation Expedition (ACE) in 2016/2017 I. Thurnherr and F. Aemisegger https://doi.org/10.5281/zenodo.3268642

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Short summary

Stable water isotopes (SWIs) are tracers of moist atmospheric processes. We analyse the impact of large- to small-scale atmospheric processes and various environmental conditions on the variability of SWIs using ship-based SWI measurement in water vapour from the Atlantic and Southern Ocean. Furthermore, simultaneous measurements of SWIs at two altitudes are used to illustrate the potential of such measurements for future research to estimate sea spray evaporation and turbulent moisture fluxes.