Unprecedented evidence for deep convection hydrating the tropical stratosphere
Date de parution
Geophysical Research Letters, American Geophysical Union (AGU), 2008/35/L10810/1-5
We report on in situ and remote sensing measurements of ice particles in the tropical stratosphere found during the Geophysica campaigns TROCCINOX and SCOUT-O3. We show that the deep convective systems penetrated the stratosphere and deposited ice particles at altitudes reaching 420 K potential temperature. These convective events had a hydrating effect on the lower tropical stratosphere due to evaporation of the ice particles. In contrast, there were no signs of convectively induced dehydration in the stratosphere.
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