Articles | Volume 20, issue 17
Research article
10 Sep 2020
Research article |  | 10 Sep 2020

Effect of deep convection on the tropical tropopause layer composition over the southwest Indian Ocean during austral summer

Stephanie Evan, Jerome Brioude, Karen Rosenlof, Sean M. Davis, Holger Vömel, Damien Héron, Françoise Posny, Jean-Marc Metzger, Valentin Duflot, Guillaume Payen, Hélène Vérèmes, Philippe Keckhut, and Jean-Pierre Cammas

Data sets

MLS/Aura Level 2 Water Vapor (H2O) Mixing Ratio V004 A. Lambert, W. Read, and N. Livesey

CALIPSO Lidar Level 1B profile data, V4-10 C. Trepte

DACC/SHADOZ La Reunion F. Posny

Stratospheric Water and OzOne Satellite Homogenized (SWOOSH) data set S. Davis

Short summary
The role of deep convection in the southwest Indian Ocean (the 3rd most active tropical cyclone basin) on the composition of the tropical tropopause layer (TTL) and the climate system is less understood due to scarce observations. Balloon-borne lidar and satellite measurements in the southwest Indian Ocean were used to study tropical cyclones' influence on TTL composition. This study compares the impact of a tropical storm and cyclone on the humidification of the TTL over the SW Indian Ocean.
Final-revised paper