Document Type

Article

Publication Date

2012

DOI

10.1029/2011JD016556

Publication Title

Journal of Geophysical Research: Atmospheres

Volume

117

Issue

D3

Pages

D03203 (1-15)

Abstract

[1] Infrared spectra measured by the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) on the SCISAT satellite were used to analyze the Sarychev volcanic aerosol after the eruption in June 2009. Evidence of the Sarychev eruptions was first detected in July 2009 from enhanced SO2 concentrations and atmospheric extinction. By February 2010, the atmosphere had returned to pre-Sarychev conditions. In July 2009, the volcanic plume was found between 8.5 km and 17.5 km in altitude at mid- and high latitudes (55°N–70°N). The first SO2 and sulfate aerosol retrievals carried out using the infrared solar occultation spectra recorded with the ACE-FTS are presented here. The size distribution parameters, the aerosol volume slant column and the composition of the sulfate aerosol were obtained by using a least squares algorithm. The maximum volume slant column of the aerosols was found to be 850 μm3 cm−3 km, which results in an approximate aerosol loading of 3 μm3 cm−3. One month after the eruption, the composition of the aerosols providing the best-fit is a 75% sulfuric acid-water solution with an effective radius (Reff) of 0.1–0.3 μm.

Rights

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

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Original Publication Citation

Doeringer, D., Eldering, A., Boone, C. D., González Abad, G., & Bernath, P. F. (2012). Observation of sulfate aerosols and SO₂ from the sarychev volcanic eruption using data from the atmospheric chemistry experiment (ACE). Journal of Geophysical Research: Atmospheres, 117(D3), 1-15, Article D03203. https://doi.org/10.1029/2011JD016556

ORCID

0000-0002-1255-396X (Bernath)

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