Unprecedented evidence for deep convection hydrating the tropical stratosphere

Corti, T.; Luo, B. P.; de Reus, M.; Brunner, D.; Cairo, F.; Mahoney, M. J.; Martucci, G.; Matthey-De-L'Endroit, Renaud; Mitev, Valentin; dos Santos, F. H.; Schiller, C.; Shur, G.; Sitnikov, N. M.; Spelten, N.; Vössing, H. J.; Borrmann, S.; Peter, T.

doi:10.1029/2008GL033641

Unprecedented evidence for deep convection hydrating the tropical stratosphere

Author(s)

Corti, T.

Luo, B. P.

de Reus, M.

Brunner, D.

Cairo, F.

Mahoney, M. J.

Martucci, G.

Matthey-De-L'Endroit, Renaud

Laboratoire temps-fréquence

Mitev, Valentin

dos Santos, F. H.

Schiller, C.

Shur, G.

Sitnikov, N. M.

Spelten, N.

Vössing, H. J.

Borrmann, S.

Peter, T.

Date issued

2008

In

Geophysical Research Letters, American Geophysical Union (AGU), 2008/35/L10810/1-5

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.