Document Type

Article

Publication Date

2022

DOI

10.1029/2022JD036600

Publication Title

Journal of Geophysical Research: Atmospheres

Volume

127

Issue

18

Pages

e2022JD036600 (1-16)

Abstract

Infrared aerosol spectra derived from Atmospheric Chemistry Experiment measurements following the June 2019 Raikoke volcanic eruption are used to evaluate the composition of stratospheric aerosols in the Arctic. A blanket of aerosols, spanning an altitude range from the tropopause (8–11 km) to 20 km, persisted in the stratosphere over northern latitudes for many months. The aerosols within this blanket were almost exclusively sulfates. The percentage of sulfuric acid in the aerosols decreased over time, dropping below 50% H2SO4 concentration at some altitudes by March 2020. Contrary to previous reports, the aerosol blanket was not comprised of smoke particles.

Comments

An edited version of this paper was published by AGU. Copyright © 2022 American Geophysical Union. All Rights Reserved.

AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.

Original Publication Citation

Boone, C. D., Bernath, P. F., Labelle, K., & Crouse, J. (2022). Stratospheric aerosol composition observed by the Atmospheric Chemistry Experiment following the 2019 Raikoke eruption. Journal of Geophysical Research: Atmospheres, 127(18), 1-16, Article e2022JD036600. https://doi.org/10.1029/2022JD036600

ORCID

0000-0002-1255-396X (Bernath), 0000-0001-8831-7165 (LaBelle)

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