Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3
Abstract Data from multiple ice and sediment cores in the North Atlantic show that Marine Oxygen Isotope Stage 3 (MIS 3) was characterized by recurring millennial-scale variations in climate, but the periodic behavior of the well-known millennial-scale variations, Heinrich events and Dansgaard–Oesch...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2013.02.003 2024-09-15T18:03:28+00:00 Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 Long, John A. Stoy, Paul C. 2013 http://dx.doi.org/10.1016/j.yqres.2013.02.003 http://api.elsevier.com/content/article/PII:S0033589413000215?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589413000215?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400003598 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 79, issue 3, page 413-423 ISSN 0033-5894 1096-0287 journal-article 2013 crcambridgeupr https://doi.org/10.1016/j.yqres.2013.02.003 2024-06-26T04:04:26Z Abstract Data from multiple ice and sediment cores in the North Atlantic show that Marine Oxygen Isotope Stage 3 (MIS 3) was characterized by recurring millennial-scale variations in climate, but the periodic behavior of the well-known millennial-scale variations, Heinrich events and Dansgaard–Oeschger events, is uncertain. We use oxygen isotope values from the Greenland Ice Sheet Project 2 (GISP2) and North Greenland Ice Core Project (NGRIP) ice cores and estimated sea-surface temperature derived from a Bermuda Rise marine sediment core as climate proxies to assess the periodic behavior of Heinrich events and Dansgaard–Oeschger events using Lomb–Scargle spectral decomposition and continuous time autoregressive models. We find that continuous time autoregressive models produce less variable estimates of periodicity for Heinrich events than Lomb–Scargle methods. Heinrich events during MIS 3 are periodic with an estimated periodicity of 6.29–6.49 ka in the GISP 2 ice core, 6.71–6.76 ka in the marine sediment core, and 7.89–8.23 ka in the NGRIP core. There is insufficient evidence from these data to conclude that Dansgaard–Oeschger events exhibit a single periodicity during MIS 3. We also find that the periodic behavior of millennial-scale variations depends on the observational time frame. Article in Journal/Newspaper Dansgaard-Oeschger events GISP Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet NGRIP North Atlantic North Greenland North Greenland Ice Core Project Cambridge University Press Quaternary Research 79 3 413 423 |
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Cambridge University Press |
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crcambridgeupr |
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English |
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Abstract Data from multiple ice and sediment cores in the North Atlantic show that Marine Oxygen Isotope Stage 3 (MIS 3) was characterized by recurring millennial-scale variations in climate, but the periodic behavior of the well-known millennial-scale variations, Heinrich events and Dansgaard–Oeschger events, is uncertain. We use oxygen isotope values from the Greenland Ice Sheet Project 2 (GISP2) and North Greenland Ice Core Project (NGRIP) ice cores and estimated sea-surface temperature derived from a Bermuda Rise marine sediment core as climate proxies to assess the periodic behavior of Heinrich events and Dansgaard–Oeschger events using Lomb–Scargle spectral decomposition and continuous time autoregressive models. We find that continuous time autoregressive models produce less variable estimates of periodicity for Heinrich events than Lomb–Scargle methods. Heinrich events during MIS 3 are periodic with an estimated periodicity of 6.29–6.49 ka in the GISP 2 ice core, 6.71–6.76 ka in the marine sediment core, and 7.89–8.23 ka in the NGRIP core. There is insufficient evidence from these data to conclude that Dansgaard–Oeschger events exhibit a single periodicity during MIS 3. We also find that the periodic behavior of millennial-scale variations depends on the observational time frame. |
format |
Article in Journal/Newspaper |
author |
Long, John A. Stoy, Paul C. |
spellingShingle |
Long, John A. Stoy, Paul C. Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
author_facet |
Long, John A. Stoy, Paul C. |
author_sort |
Long, John A. |
title |
Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
title_short |
Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
title_full |
Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
title_fullStr |
Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
title_full_unstemmed |
Quantifying the periodicity of Heinrich and Dansgaard–Oeschger events during Marine Oxygen Isotope Stage 3 |
title_sort |
quantifying the periodicity of heinrich and dansgaard–oeschger events during marine oxygen isotope stage 3 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1016/j.yqres.2013.02.003 http://api.elsevier.com/content/article/PII:S0033589413000215?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589413000215?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400003598 |
genre |
Dansgaard-Oeschger events GISP Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet NGRIP North Atlantic North Greenland North Greenland Ice Core Project |
genre_facet |
Dansgaard-Oeschger events GISP Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet NGRIP North Atlantic North Greenland North Greenland Ice Core Project |
op_source |
Quaternary Research volume 79, issue 3, page 413-423 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2013.02.003 |
container_title |
Quaternary Research |
container_volume |
79 |
container_issue |
3 |
container_start_page |
413 |
op_container_end_page |
423 |
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1810440958716674048 |