Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago
An ∼6‐year long period of volcanic sulfate recorded in the GISP2 ice core about 71,100 ± 5000 years ago may provide detailed information on the atmospheric and climatic impact of the Toba mega‐eruption. Deposition of these aerosols occur at the beginning of an ∼1000‐year long stadial event, but not...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1192 2023-05-15T16:39:00+02:00 Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago Zielinski, G. A. Mayewski, Paul Andrew Meeker, L. D. Whitlow, S. Twickler, M. S. Taylor, K. 1996-04-15T07:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/192 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1192&context=ers_facpub unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/192 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1192&context=ers_facpub This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Earth Science Faculty Scholarship Glaciogeology Geochemistry Glaciology Cryology Climate Change Climate Earth Sciences Hydrology text 1996 ftmaineuniv 2023-03-12T18:54:26Z An ∼6‐year long period of volcanic sulfate recorded in the GISP2 ice core about 71,100 ± 5000 years ago may provide detailed information on the atmospheric and climatic impact of the Toba mega‐eruption. Deposition of these aerosols occur at the beginning of an ∼1000‐year long stadial event, but not immediately before the longer glacial period beginning ∼67,500 years ago. Total stratospheric loading estimates over this ∼6‐year period range from 2200 to 4400 Mt of H2SO4 aerosols. The range in values is given to compensate for uncertainties in aerosol transport. Magnitude and longevity of the atmospheric loading may have led directly to enhanced cooling during the initial two centuries of this ∼1000‐year cooling event. Text ice core The University of Maine: DigitalCommons@UMaine |
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Open Polar |
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The University of Maine: DigitalCommons@UMaine |
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ftmaineuniv |
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topic |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Climate Earth Sciences Hydrology |
spellingShingle |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Climate Earth Sciences Hydrology Zielinski, G. A. Mayewski, Paul Andrew Meeker, L. D. Whitlow, S. Twickler, M. S. Taylor, K. Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
topic_facet |
Glaciogeology Geochemistry Glaciology Cryology Climate Change Climate Earth Sciences Hydrology |
description |
An ∼6‐year long period of volcanic sulfate recorded in the GISP2 ice core about 71,100 ± 5000 years ago may provide detailed information on the atmospheric and climatic impact of the Toba mega‐eruption. Deposition of these aerosols occur at the beginning of an ∼1000‐year long stadial event, but not immediately before the longer glacial period beginning ∼67,500 years ago. Total stratospheric loading estimates over this ∼6‐year period range from 2200 to 4400 Mt of H2SO4 aerosols. The range in values is given to compensate for uncertainties in aerosol transport. Magnitude and longevity of the atmospheric loading may have led directly to enhanced cooling during the initial two centuries of this ∼1000‐year cooling event. |
format |
Text |
author |
Zielinski, G. A. Mayewski, Paul Andrew Meeker, L. D. Whitlow, S. Twickler, M. S. Taylor, K. |
author_facet |
Zielinski, G. A. Mayewski, Paul Andrew Meeker, L. D. Whitlow, S. Twickler, M. S. Taylor, K. |
author_sort |
Zielinski, G. A. |
title |
Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
title_short |
Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
title_full |
Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
title_fullStr |
Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
title_full_unstemmed |
Potential Atmospheric Impact of the Toba Mega‐Eruption ∼71,000 Years Ago |
title_sort |
potential atmospheric impact of the toba mega‐eruption ∼71,000 years ago |
publisher |
DigitalCommons@UMaine |
publishDate |
1996 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/192 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1192&context=ers_facpub |
genre |
ice core |
genre_facet |
ice core |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/192 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1192&context=ers_facpub |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
_version_ |
1766029369927532544 |