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: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.

Special issue:

The Joint Aeolus Tropical Atlantic Campaign (JATAC) (AMT/ACP...

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

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Cumulative views and downloads (calculated since 01 Nov 2023)

Month	HTML	PDF	XML	Total
Nov 2023	167	66	10	243
Dec 2023	36	10	4	50
Jan 2024	29	10	1	40
Feb 2024	34	12	5	51
Mar 2024	19	8	0	27
Apr 2024	92	12	4	108
May 2024	368	54	8	430
Jun 2024	78	15	2	95
Jul 2024	268	14	8	290
Aug 2024	33	9	2	44
Sep 2024	23	11	1	35
Oct 2024	31	1	0	32
Nov 2024	42	5	1	48
Dec 2024	29	5	0	34
Jan 2025	43	5	3	51
Feb 2025	42	5	2	49
Mar 2025	35	4	0	39
Apr 2025	54	11	0	65
May 2025	65	9	2	76
Jun 2025	95	7	4	106
Jul 2025	54	12	1	67
Aug 2025	98	18	2	118
Sep 2025	209	10	0	219
Oct 2025	53	36	0	89
Nov 2025	49	41	0	90

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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.


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