The potential impacts of a sulfur- and halogen-rich supereruption such as Los Chocoyos on the atmosphere and climate

The supereruption of Los Chocoyos (14.6 degrees N, 91.2 degrees W) in Guatemala similar to 84 kyr ago was one of the largest volcanic events of the past 100 000 years. Recent petrologic data show that the eruption released very large amounts of climate-relevant sulfur and ozone-destroying chlorine and bromine gases (523 +/- 94 Mt sulfur, 1200 +/- 156 Mt chlorine, and 2 +/- 0.46 Mt bromine) Using the Earth system model (ESM) of the Community Earth System Model version 2 (CESM2) coupled with the Whole Atmosphere Community Climate Model version 6 (WACCM6), we simulated the impacts of the sulfur- and halogen-rich Los Chocoyos eruption on the preindustrial Earth system.

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Author Brenna, Hans
Kutterolf, Steffen
Mills, Michael J.
Krüger, Kirstin
Publisher UCAR/NCAR - Library
Publication Date 2020-06-05T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:09:38.542232
Metadata Record Identifier edu.ucar.opensky::articles:23414
Metadata Language eng; USA
Suggested Citation Brenna, Hans, Kutterolf, Steffen, Mills, Michael J., Krüger, Kirstin. (2020). The potential impacts of a sulfur- and halogen-rich supereruption such as Los Chocoyos on the atmosphere and climate. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d76t0qx2. Accessed 25 June 2025.

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