Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions
Large explosive tropical volcanic eruptions inject high amounts of gases into the stratosphere, where they disperse globally through the large-scale meridional circulation. There is now increasing observational evidence that volcanic halogens can reach the upper troposphere and lower stratosphere. H...
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ftoceanrep:oai:oceanrep.geomar.de:47182 2023-05-15T14:00:23+02:00 Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions Brenna, Hans Kutterolf, Steffen Krüger, Kirstin 2019-07-01 text https://oceanrep.geomar.de/id/eprint/47182/ https://oceanrep.geomar.de/id/eprint/47182/1/s41598-019-46253-1.pdf https://oceanrep.geomar.de/id/eprint/47182/2/s41598-019-45630-0.pdf https://doi.org/10.1038/s41598-019-45630-0 en eng Nature Research https://oceanrep.geomar.de/id/eprint/47182/1/s41598-019-46253-1.pdf https://oceanrep.geomar.de/id/eprint/47182/2/s41598-019-45630-0.pdf Brenna, H. , Kutterolf, S. and Krüger, K. (2019) Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions. Open Access Scientific Reports, 9 (Article number: 9435). DOI 10.1038/s41598-019-45630-0 <https://doi.org/10.1038/s41598-019-45630-0>. doi:10.1038/s41598-019-45630-0 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2019 ftoceanrep https://doi.org/10.1038/s41598-019-45630-0 2023-04-07T15:46:36Z Large explosive tropical volcanic eruptions inject high amounts of gases into the stratosphere, where they disperse globally through the large-scale meridional circulation. There is now increasing observational evidence that volcanic halogens can reach the upper troposphere and lower stratosphere. Here, we present the first study that combines measurement-based data of sulfur, chlorine and bromine releases from tropical volcanic eruptions with complex coupled chemistry climate model simulations taking radiative-dynamical-chemical feedbacks into account. Halogen model input parameters represent a size-time-region-wide average for the Central American eruptions over the last 200 ka ensuring a comprehensive perspective. The simulations reveal global, long-lasting impact on the ozone layer affecting atmospheric composition and circulation for a decade. Column ozone drops below 220 DU (ozone hole conditions) in the tropics, Arctic and Antarctica, increasing biologically active UV by 80 to 400%. Our model results could potentially be validated using high-resolution proxies from ice cores and pollen records. Article in Journal/Newspaper Antarc* Antarctica Arctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Scientific Reports 9 1 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Large explosive tropical volcanic eruptions inject high amounts of gases into the stratosphere, where they disperse globally through the large-scale meridional circulation. There is now increasing observational evidence that volcanic halogens can reach the upper troposphere and lower stratosphere. Here, we present the first study that combines measurement-based data of sulfur, chlorine and bromine releases from tropical volcanic eruptions with complex coupled chemistry climate model simulations taking radiative-dynamical-chemical feedbacks into account. Halogen model input parameters represent a size-time-region-wide average for the Central American eruptions over the last 200 ka ensuring a comprehensive perspective. The simulations reveal global, long-lasting impact on the ozone layer affecting atmospheric composition and circulation for a decade. Column ozone drops below 220 DU (ozone hole conditions) in the tropics, Arctic and Antarctica, increasing biologically active UV by 80 to 400%. Our model results could potentially be validated using high-resolution proxies from ice cores and pollen records. |
format |
Article in Journal/Newspaper |
author |
Brenna, Hans Kutterolf, Steffen Krüger, Kirstin |
spellingShingle |
Brenna, Hans Kutterolf, Steffen Krüger, Kirstin Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
author_facet |
Brenna, Hans Kutterolf, Steffen Krüger, Kirstin |
author_sort |
Brenna, Hans |
title |
Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
title_short |
Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
title_full |
Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
title_fullStr |
Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
title_full_unstemmed |
Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions |
title_sort |
global ozone depletion and increase of uv radiation caused by pre-industrial tropical volcanic eruptions |
publisher |
Nature Research |
publishDate |
2019 |
url |
https://oceanrep.geomar.de/id/eprint/47182/ https://oceanrep.geomar.de/id/eprint/47182/1/s41598-019-46253-1.pdf https://oceanrep.geomar.de/id/eprint/47182/2/s41598-019-45630-0.pdf https://doi.org/10.1038/s41598-019-45630-0 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic |
genre_facet |
Antarc* Antarctica Arctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/47182/1/s41598-019-46253-1.pdf https://oceanrep.geomar.de/id/eprint/47182/2/s41598-019-45630-0.pdf Brenna, H. , Kutterolf, S. and Krüger, K. (2019) Global ozone depletion and increase of UV radiation caused by pre-industrial tropical volcanic eruptions. Open Access Scientific Reports, 9 (Article number: 9435). DOI 10.1038/s41598-019-45630-0 <https://doi.org/10.1038/s41598-019-45630-0>. doi:10.1038/s41598-019-45630-0 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-019-45630-0 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766269484889276416 |