Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 20, issue 6
Articles | Volume 20, issue 6
https://doi.org/10.5194/acp-20-3921-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-3921-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 6
Research article
 | 
01 Apr 2020
Research article |  | 01 Apr 2020

The diurnal cycle of the clouds extending above the tropical tropopause observed by spaceborne lidar

Thibaut Dauhut, Vincent Noel, and Iris-Amata Dion

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Short summary
We document for the first time the diurnal cycle of the clouds in the tropical stratosphere, using the measurements from the lidar on board the International Space Station. The stratospheric clouds are concentrated over the convective centers. Their cloud fraction is minimal and limited to the vicinity of the tropopause during daytime. It presents two maxima: one in the early night and one shortly after midnight, when clouds also extend deeper in the stratosphere.
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