A reassessment of the sulfur, chlorine and fluorine atmospheric loading during the 1815 Tambora eruption

Pouget, Manon; Moussallam, Yves; Rose-Koga, Estelle F.; Sigurdsson, Haraldur

doi:10.1007/s00445-023-01683-8

Bull Volcanol

2023

DOI: 10.1007/s00445-023-01683-8

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A reassessment of the sulfur, chlorine and fluorine atmospheric loading during the 1815 Tambora eruption

Manon Pouget,

Yves Moussallam,

Estelle F. Rose-Koga

et al.

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A New Multi‐Method Assessment of Stratospheric Sulfur Load From the Okmok II Caldera‐Forming Eruption of 43 BCE

Peccia,

Moussallam,

Plank

et al. 2023

Geophysical Research Letters

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The 43 BCE eruption of Okmok Volcano has been proposed to have had a significant climate cooling impact in the Northern Hemisphere. In this study, we quantify the climate cooling potential of the Okmok II eruption by measuring sulfur concentration in melt inclusions (up to 1,606 ppm) and matrix glasses and estimate a total of 62 ± 16 Tg S released. The proportion reaching the stratosphere (2.5%–25%, i.e., 1.5–15.5 Tg S) was constrained by physical modeling of the caldera‐collapse eruption. Using the NASA Goddard Institute for Space Studies E2.2 climate model we found a linear response between cooling and stratospheric sulfur load (0.05–0.08°C/Tg S). Thus, the 1–2°C of cooling derived from proxy records would require 16–32 Tg sulfur injection. This study underscores the importance of combining approaches to estimate stratospheric S load. For Okmok II, we find all methods are consistent with a range of 15–16 Tg S.

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A New Multi‐Method Assessment of Stratospheric Sulfur Load From the Okmok II Caldera‐Forming Eruption of 43 BCE

Peccia,

Moussallam,

Plank

et al. 2023

Geophysical Research Letters

Self Cite

View full text Add to dashboard Cite

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A reassessment of the sulfur, chlorine and fluorine atmospheric loading during the 1815 Tambora eruption

Cited by 1 publication

References 38 publications

A New Multi‐Method Assessment of Stratospheric Sulfur Load From the Okmok II Caldera‐Forming Eruption of 43 BCE

A New Multi‐Method Assessment of Stratospheric Sulfur Load From the Okmok II Caldera‐Forming Eruption of 43 BCE

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