Atmospheric Chemistry Experiment (ACE) satellite observations of aerosols and SO[formula omitted] emissions from the 2024 Ruang volcanic eruption

IF 2.3 3区物理与天体物理 Q2 OPTICS Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2024-12-28 DOI:10.1016/j.jqsrt.2024.109333

Randika Dodangodage, Peter F. Bernath, Matthew Wyatt, Chris Boone

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Abstract

Indonesia’s Ruang volcano erupted on April 16, 2024, with subsequent eruptions on April 17 and 30. The resulting plume was observed rising to altitudes of up to 12 km. 10 days after the eruption of the Ruang volcano in April 2024, the Atmospheric Chemistry Experiment (ACE) observed notable increases in SO2 volume mixing ratios and aerosol extinction at an altitude of approximately 20 km. It was confirmed that the aerosols present were sulfate aerosols from their infrared spectra. The composition and size of the stratospheric sulfate aerosol particles were determined by fitting the infrared transmission spectra. The sulfate aerosols observed in the plume were about 64% (by weight) sulfuric acid, and the droplets had an average median radius of 0.127 μm.

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2024年阮氏火山喷发气溶胶和SO[公式省略]排放的大气化学实验（ACE）卫星观测

印度尼西亚的鲁昂火山于2024年4月16日爆发，随后于4月17日和30日爆发。由此产生的羽流被观测到上升到高达12公里的高度。在2024年4月阮氏火山喷发10天后，大气化学实验（ACE）观测到，在海拔约20 km处，SO2体积混合比和气溶胶消光显著增加。通过红外光谱分析，确定其为硫酸盐气溶胶。通过红外光谱拟合，确定了平流层硫酸盐气溶胶粒子的组成和大小。在羽流中观测到的硫酸盐气溶胶约为64%（重量）的硫酸，液滴的平均中位半径为0.127 μm。

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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.