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American Geophysical Union, Geophysical Research Letters, 10(35), 2008

DOI: 10.1029/2008gl033641

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Unprecedented evidence for deep convection hydrating the tropical stratosphere

Journal article published in 2008 by T. Corti, B. P. Luo, M. de Reus, D. W. Brunner ORCID, F. Cairo ORCID, M. J. Mahoney, G. Martucci, R. Matthey, V. Mitev, F. H. dos Santos, C. Schiller, G. Shur, N. M. Sitnikov, N. Spelten, H. J. Vössing and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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.