No anomalous supersaturation in ultracold  cirrus laboratory experiments

Clouser, Benjamin W.; Lamb, Kara D.; Sarkozy, Laszlo C.; Habig, Jan; Ebert, Volker; Saathoff, Harald; Möhler, Ottmar; Moyer, Elisabeth J.

doi:https://doi.org/10.5194/acp-20-1089-2020

Articles | Volume 20, issue 2

https://doi.org/10.5194/acp-20-1089-2020

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

https://doi.org/10.5194/acp-20-1089-2020

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

Articles | Volume 20, issue 2

Research article

|

28 Jan 2020

Research article |

| 28 Jan 2020

No anomalous supersaturation in ultracold cirrus laboratory experiments

Benjamin W. Clouser, Kara D. Lamb, Laszlo C. Sarkozy, Jan Habig, Volker Ebert, Harald Saathoff, Ottmar Möhler, and Elisabeth J. Moyer

Supplement

https://doi.org/10.5194/acp-20-1089-2020-supplement

Data sets

ChiWIS H2O data from the IsoCloud4 Campaign B. Clouser https://doi.org/10.6082/uchicago.2132

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Short summary

Previous measurements of water vapor in the upper troposphere and lower stratosphere (UT/LS) have shown unexpectedly high concentrations of water vapor in ice clouds, which may be due to an incomplete understanding of the structure of ice and the behavior of ice growth in this part of the atmosphere. Water vapor measurements during the 2013 IsoCloud campaign at the AIDA cloud chamber show no evidence of this anomalous supersaturation in conditions similar to the real atmosphere.