Articles | Volume 17, issue 9
Atmos. Chem. Phys., 17, 6113–6124, 2017
https://doi.org/10.5194/acp-17-6113-2017
Atmos. Chem. Phys., 17, 6113–6124, 2017
https://doi.org/10.5194/acp-17-6113-2017

Research article 17 May 2017

Research article | 17 May 2017

Enhanced stratospheric water vapor over the summertime continental United States and the role of overshooting convection

Robert L. Herman et al.

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This study reports new aircraft field observations of elevated water vapor greater than 10 ppmv in the overworld stratosphere over the summertime continental US. Back trajectories from the flight track intersect overshooting convective tops within the previous 1 to 7 days, suggesting that ice is convectively and irreversibly transported to the stratosphere in the most energetic overshooting convective events. Satellite measurements (Aura MLS) indicate that such events are uncommon (< 1 %).
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