Tropospheric sulfate from Cumbre Vieja (La Palma) observed over Cabo Verde contrasted with  background conditions: a lidar case study of aerosol extinction, backscatter, depolarization and lidar ratio profiles at 355, 532 and 1064&thinsp;nm

Gebauer, Henriette; Floutsi, Athena Augusta; Haarig, Moritz; Radenz, Martin; Engelmann, Ronny; Althausen, Dietrich; Skupin, Annett; Ansmann, Albert; Zenk, Cordula; Baars, Holger

doi:https://doi.org/10.5194/acp-24-5047-2024

Articles | Volume 24, issue 8

https://doi.org/10.5194/acp-24-5047-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-5047-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 8

Research article

|

30 Apr 2024

Research article |

| 30 Apr 2024

Tropospheric sulfate from Cumbre Vieja (La Palma) observed over Cabo Verde contrasted with background conditions: a lidar case study of aerosol extinction, backscatter, depolarization and lidar ratio profiles at 355, 532 and 1064 nm

Henriette Gebauer, Athena Augusta Floutsi, Moritz Haarig, Martin Radenz, Ronny Engelmann, Dietrich Althausen, Annett Skupin, Albert Ansmann, Cordula Zenk, and Holger Baars

Data sets

Lidar-derived aerosol optical properties from Mindelo, Cabo Verde, September 2021 Henriette Gebauer et al. https://doi.org/10.5281/zenodo.10650879

NCEP FNL Operational Model Global Tropospheric Analyses, continuing from July 1999 National Centers for Environmental Prediction et al. https://doi.org/10.5065/D6M043C6

Aerosol Robotic Network AERONET https://aeronet.gsfc.nasa.gov/cgi-bin/data_display_aod_v3?site=Mindelo_OSCM&nachal=0&year=2021&month=9&aero_water=0&level=3&if_day=0&if_err=0&place_code=10&year_or_month=0

TROPOspheric Monitoring Instrument, quicklooks TROPOMI https://so2.gsfc.nasa.gov/pix/daily/ixxxza/troploop5pca.php?yr=21&mo=09&dy=23&bn=cverde

Short summary

Sulfate aerosol from the volcanic eruption at La Palma in 2021 was observed over Cabo Verde. We characterized the aerosol burden based on a case study of lidar and sun photometer observations. We compared the volcanic case to the typical background conditions (reference case) to quantify the volcanic pollution. We show the first ever measurements of the extinction coefficient, lidar ratio and depolarization ratio at 1064 nm for volcanic sulfate.