Vertical profile observations of water vapor deuterium excess in the lower troposphere

Salmon, Olivia E.; Welp, Lisa R.; Baldwin, Michael E.; Hajny, Kristian D.; Stirm, Brian H.; Shepson, Paul B.

doi:https://doi.org/10.5194/acp-19-11525-2019

Articles | Volume 19, issue 17

Atmos. Chem. Phys., 19, 11525–11543, 2019

https://doi.org/10.5194/acp-19-11525-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Atmos. Chem. Phys., 19, 11525–11543, 2019

https://doi.org/10.5194/acp-19-11525-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 17

Research article 12 Sep 2019

Research article | 12 Sep 2019

Vertical profile observations of water vapor deuterium excess in the lower troposphere

Olivia E. Salmon et al.

Supplement

https://doi.org/10.5194/acp-19-11525-2019-supplement

Data sets

Vertical profile observations of water vapor deuterium excess in the lower troposphere O. E. Salmon, L. R. Welp, M. Baldwin, K. Hajny, B. H. Stirm, and P. B. Shepson https://doi.org/10.4231/1MZN-1C18

Flight Cruise: Indianapolis and Flight Cruise O. Salmon and L. Welp https://vapor-isotope.yale.edu

Short summary

We conducted airborne vertical profile measurements of water vapor stable isotopes to examine how boundary layer, cloud, and mixing processes influence the vertical structure of deuterium excess in the lower troposphere. We discuss reasons our observations are consistent with water vapor isotope theory on some days and not others. Deuterium excess may be useful for understanding complex processes occurring at the top of the boundary layer, including cloud formation, evaporation, and air mixing.