Bipolar correlation of volcanism with millennial climate change
Analyzing data from our optical dust logger, we find that volcanic ash layers from the Siple Dome (Antarctica) borehole are simultaneous (with >99% rejection of the null hypothesis) with the onset of millennium-timescale cooling recorded at Greenland Ice Sheet Project 2 (GISP2; Greenland). These...
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ftpubmed:oai:pubmedcentral.nih.gov:404046 2023-05-15T13:39:28+02:00 Bipolar correlation of volcanism with millennial climate change Bay, Ryan C. Bramall, Nathan Price, P. Buford 2004-04-27 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404046 http://www.ncbi.nlm.nih.gov/pubmed/15096586 https://doi.org/10.1073/pnas.0400323101 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404046 http://www.ncbi.nlm.nih.gov/pubmed/15096586 http://dx.doi.org/10.1073/pnas.0400323101 Copyright © 2004, The National Academy of Sciences Physical Sciences Text 2004 ftpubmed https://doi.org/10.1073/pnas.0400323101 2013-08-29T23:13:59Z Analyzing data from our optical dust logger, we find that volcanic ash layers from the Siple Dome (Antarctica) borehole are simultaneous (with >99% rejection of the null hypothesis) with the onset of millennium-timescale cooling recorded at Greenland Ice Sheet Project 2 (GISP2; Greenland). These data are the best evidence yet for a causal connection between volcanism and millennial climate change and lead to possibilities of a direct causal relationship. Evidence has been accumulating for decades that volcanic eruptions can perturb climate and possibly affect it on long timescales and that volcanism may respond to climate change. If rapid climate change can induce volcanism, this result could be further evidence of a southern-lead North–South climate asynchrony. Alternatively, a volcanic-forcing viewpoint is of particular interest because of the high correlation and relative timing of the events, and it may involve a scenario in which volcanic ash and sulfate abruptly increase the soluble iron in large surface areas of the nutrient-limited Southern Ocean, stimulate growth of phytoplankton, which enhance volcanic effects on planetary albedo and the global carbon cycle, and trigger northern millennial cooling. Large global temperature swings could be limited by feedback within the volcano–climate system. Text Antarc* Antarctica Greenland Greenland Ice Sheet Project Ice Sheet Southern Ocean PubMed Central (PMC) Greenland Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) Southern Ocean Proceedings of the National Academy of Sciences 101 17 6341 6345 |
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Physical Sciences |
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Physical Sciences Bay, Ryan C. Bramall, Nathan Price, P. Buford Bipolar correlation of volcanism with millennial climate change |
topic_facet |
Physical Sciences |
description |
Analyzing data from our optical dust logger, we find that volcanic ash layers from the Siple Dome (Antarctica) borehole are simultaneous (with >99% rejection of the null hypothesis) with the onset of millennium-timescale cooling recorded at Greenland Ice Sheet Project 2 (GISP2; Greenland). These data are the best evidence yet for a causal connection between volcanism and millennial climate change and lead to possibilities of a direct causal relationship. Evidence has been accumulating for decades that volcanic eruptions can perturb climate and possibly affect it on long timescales and that volcanism may respond to climate change. If rapid climate change can induce volcanism, this result could be further evidence of a southern-lead North–South climate asynchrony. Alternatively, a volcanic-forcing viewpoint is of particular interest because of the high correlation and relative timing of the events, and it may involve a scenario in which volcanic ash and sulfate abruptly increase the soluble iron in large surface areas of the nutrient-limited Southern Ocean, stimulate growth of phytoplankton, which enhance volcanic effects on planetary albedo and the global carbon cycle, and trigger northern millennial cooling. Large global temperature swings could be limited by feedback within the volcano–climate system. |
format |
Text |
author |
Bay, Ryan C. Bramall, Nathan Price, P. Buford |
author_facet |
Bay, Ryan C. Bramall, Nathan Price, P. Buford |
author_sort |
Bay, Ryan C. |
title |
Bipolar correlation of volcanism with millennial climate change |
title_short |
Bipolar correlation of volcanism with millennial climate change |
title_full |
Bipolar correlation of volcanism with millennial climate change |
title_fullStr |
Bipolar correlation of volcanism with millennial climate change |
title_full_unstemmed |
Bipolar correlation of volcanism with millennial climate change |
title_sort |
bipolar correlation of volcanism with millennial climate change |
publisher |
National Academy of Sciences |
publishDate |
2004 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404046 http://www.ncbi.nlm.nih.gov/pubmed/15096586 https://doi.org/10.1073/pnas.0400323101 |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Greenland Siple Siple Dome Southern Ocean |
geographic_facet |
Greenland Siple Siple Dome Southern Ocean |
genre |
Antarc* Antarctica Greenland Greenland Ice Sheet Project Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctica Greenland Greenland Ice Sheet Project Ice Sheet Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404046 http://www.ncbi.nlm.nih.gov/pubmed/15096586 http://dx.doi.org/10.1073/pnas.0400323101 |
op_rights |
Copyright © 2004, The National Academy of Sciences |
op_doi |
https://doi.org/10.1073/pnas.0400323101 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
101 |
container_issue |
17 |
container_start_page |
6341 |
op_container_end_page |
6345 |
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1766119380603633664 |