Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Konferenzbeitrag

Aerosol characterization within the fresh and aged stratospheric plume from the Hunga Tonga eruption 15 January 2022

Urheber*innen

Kloss,  Corinna
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Renard,  Jean-Baptiste
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Baron,  Alexandre
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Knepp,  Travis
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Berthet,  Gwenaël
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Legras,  Bernard
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Sellitto,  Pasquale
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Carboni,  Elisa
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Siddans,  Richard
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bègue,  Nelson
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Jégou,  Fabrice
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Venkataraman,  Sivakumar
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Piketh,  Stuart
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Duflot,  Valentin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Payen,  Guillaume
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in GFZpublic verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Kloss, C., Renard, J.-B., Baron, A., Knepp, T., Berthet, G., Legras, B., Sellitto, P., Carboni, E., Siddans, R., Bègue, N., Jégou, F., Venkataraman, S., Piketh, S., Duflot, V., Payen, G. (2023): Aerosol characterization within the fresh and aged stratospheric plume from the Hunga Tonga eruption 15 January 2022, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0464


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015953
Zusammenfassung
The Hunga Tonga eruption on January 14th and 15th 2022 injected water, a variety of gases and aerosols into the Upper Troposphere and Lower Stratosphere up to altitude of ~50 km. Space-borne observations show that the eruption had the strongest impact on the stratospheric Aerosol Optical Depth since the Pinatubo eruption in 1991. We performed two measurement campaigns using weather balloons with the Light Optical Aerosol Counter (LOAC, version 1.5) within the fresh (~1 week post eruption, on Reunion island 21°S) and aged (~8 months post eruption, in South Africa 24°S) stratospheric Hunga Tonga plume. Within this talk, I will present aerosol size distribution and typology information based on LOAC in situ measurements, in the context of collocated ground-based aerosol lidar profiles recorded at OPAR (Observatoire de Physique de l'Atmosphère à La Réunion) and global space-borne observations. Plume peak altitudes have decreased by 2-3 km between the two in situ measurement campaigns. LOAC observations point to exclusively small aerosol particles (<1 µm in diameter) within the fresh stratospheric plume (22-23 km altitude) and a significant increase in particle size for the aged, descended plume (~20 km altitude). This points to freshly nucleated aerosol particles within the fresh plume and growing particles (e.g. coagulation processes) within the aged plume. While satellite observations only identify sulfate particles, LOAC typology information show indications of a small absorbing component for particles < 0.5 µm, which potentially points to small fractured sulfur coated ash particles.