Articles | Volume 16, issue 8
Atmos. Chem. Phys., 16, 5139–5157, 2016
https://doi.org/10.5194/acp-16-5139-2016
Atmos. Chem. Phys., 16, 5139–5157, 2016
https://doi.org/10.5194/acp-16-5139-2016

Research article 25 Apr 2016

Research article | 25 Apr 2016

Investigating the source, transport, and isotope composition of water vapor in the planetary boundary layer

Timothy J. Griffis et al.

Data sets

NCEP FNL Operational Model Global Tropospheric Analyses, continuing from July 1999 National Centers for Environmental Prediction/National Weather Service/NOAA/U.S. Department of Commerce https://doi.org/10.5065/D6M043C6

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Short summary
Increasing atmospheric humidity and convective precipitation over land provide evidence of intensification of the hydrologic cycle. We present the first multi-annual isotope (oxygen and deuterium) water vapor observations from a very tall tower (185 m) in the upper Midwest, United States, to diagnose the sources, transport, and fractionation of water vapor in the atmosphere. The results show a relatively high degree of summertime water recycling within the region (~30 % mean and ~60 % maximum).
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