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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ftuninhampshire:oai:scholars.unh.edu:faculty_pubs-1358 2023-05-15T16:39:00+02:00 Potential atmospheric impact of the Toba Mega‐Eruption ∼71,000 years ago Zielinski, Gregory A. Mayewski, Paul A. Meeker, L. David Whitlow, Sallie I. Twickler, Mark S. Taylor, Kendrick C. 1996-04-15T07:00:00Z application/pdf https://scholars.unh.edu/faculty_pubs/359 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1358&context=faculty_pubs unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/faculty_pubs/359 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1358&context=faculty_pubs ©1996. American Geophysical Union. All Rights Reserved. Faculty Publications text 1996 ftuninhampshire 2023-01-30T21:49:54Z 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 University of New Hampshire: Scholars Repository |
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Open Polar |
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University of New Hampshire: Scholars Repository |
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ftuninhampshire |
language |
unknown |
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, Gregory A. Mayewski, Paul A. Meeker, L. David Whitlow, Sallie I. Twickler, Mark S. Taylor, Kendrick C. |
spellingShingle |
Zielinski, Gregory A. Mayewski, Paul A. Meeker, L. David Whitlow, Sallie I. Twickler, Mark S. Taylor, Kendrick C. Potential atmospheric impact of the Toba Mega‐Eruption ∼71,000 years ago |
author_facet |
Zielinski, Gregory A. Mayewski, Paul A. Meeker, L. David Whitlow, Sallie I. Twickler, Mark S. Taylor, Kendrick C. |
author_sort |
Zielinski, Gregory 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 |
University of New Hampshire Scholars' Repository |
publishDate |
1996 |
url |
https://scholars.unh.edu/faculty_pubs/359 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1358&context=faculty_pubs |
genre |
ice core |
genre_facet |
ice core |
op_source |
Faculty Publications |
op_relation |
https://scholars.unh.edu/faculty_pubs/359 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1358&context=faculty_pubs |
op_rights |
©1996. American Geophysical Union. All Rights Reserved. |
_version_ |
1766029359709159424 |