14 years of lidar measurements of polar stratospheric clouds at the French Antarctic station Dumont d'Urville

Tencé, Florent; Jumelet, Julien; Bouillon, Marie; Cugnet, David; Bekki, Slimane; Safieddine, Sarah; Keckhut, Philippe; Sarkissian, Alain

doi:https://doi.org/10.5194/acp-23-431-2023

Articles | Volume 23, issue 1

https://doi.org/10.5194/acp-23-431-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-431-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 1

Research article

|

12 Jan 2023

Research article |

| 12 Jan 2023

14 years of lidar measurements of polar stratospheric clouds at the French Antarctic station Dumont d'Urville

Florent Tencé, Julien Jumelet, Marie Bouillon, David Cugnet, Slimane Bekki, Sarah Safieddine, Philippe Keckhut, and Alain Sarkissian

Data sets

Aerosol/cloud stratospheric lidar Dumont d'Urville - 532nmSR/depolarization ratio Julien Jumelet https://www-air.larc.nasa.gov/missions/ndacc/

ERA5 hourly data on pressure levels from 1959 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6

NCEP temperature and height profiles NCEP/NCAR https://www-air.larc.nasa.gov/missions/ndacc/data.html?NCEP=ncep-list

Short summary

Polar stratospheric clouds (PSCs) are critical precursors to stratospheric ozone depletion, and measurement-driven classifications remain a key to accurate cloud modelling. We present PSC lidar observations conducted at the French Antarctic station Dumont d'Urville between 2007 and 2020. This dataset is analyzed using typical PSC classification schemes. We present a PSC climatology along with a significant and slightly negative 14-year trend of PSC occurences of −4.6 PSC days per decade.