Stratospheric ozone depletion inside the volcanic plume shortly after the 2022 Hunga Tonga eruption

Abstract ∼ ∼ ∼ x and ClOx cycles and their interactions. Aside from the gas-phase chemistry, the heterogeneous reaction rate for HOCl + → 2  + 2 O increases to 104  cm- 3 - 1 + 2 is more important. The large water injection causes relative humidity over ice to increase to 70 %–100 %, decreases the H2 SO4  /2 O binary solution weight percent to 35 % compared with the 70 % ambient value, and decreases the plume temperature by 2–6 K. These changes lead to high heterogeneous reaction rates. Plume lofting of ozone-poor air is evident during the first 2 d after the eruption, but ozone concentrations quickly recover because its chemical lifetime is short at 20 hPa. With such a large seawater injection, we expect that ∼ ∼ x changes are probably not the reason for the HTHH initial in-plume O3 loss.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Stratospheric ozone depletion inside the volcanic plume shortly after the 2022 Hunga Tonga eruption ; volume:23 ; number:20 ; year:2023 ; pages:13355-13367 ; extent:13 ; Atmospheric chemistry and physics ; 23, Heft 20 (2023), 13355-13367 (gesamt 13)

Contributors, Places and Time

• Creator: Zhu, Yunqian ; Portmann, Robert W. ; Kinnison, Douglas ; Toon, Owen Brian ; Millán, Luis ; Zhang, Jun ; Vömel, Holger ; Tilmes, Simone ; Bardeen, Charles G. ; Wang, Xinyue ; Evan, Stephanie ; Randel, William J. ; Rosenlof, Karen H.

Further information

• DOI: 10.5194/acp-23-13355-2023
• URN: urn:nbn:de:101:1-2023102604281490640726
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:55 AM CEST