Relaxation oscillators in concert: A conceptual framework for late Pleistocene millenial-scale climate variability
Using a box model of the North Atlantic Ocean and a parameterization of Heinrich Events, we suggest that self-sustained oscillations of the large-scale oceanic circulation provide a framework to accommodate crucial elements of late Pleistocene climate variability: (i) Dansgaard-Oeschger-style oscill...
Published in: | Geophysical Research Letters |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU (American Geophysical Union)
2002
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Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/702/ https://oceanrep.geomar.de/id/eprint/702/1/Schulz_et_al-2002-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2002GL016144 |
Summary: | Using a box model of the North Atlantic Ocean and a parameterization of Heinrich Events, we suggest that self-sustained oscillations of the large-scale oceanic circulation provide a framework to accommodate crucial elements of late Pleistocene climate variability: (i) Dansgaard-Oeschger-style oscillations with varying interstadial length, (ii) synchronization between Dansgaard-Oeschger stadials and Heinrich Events, and (iii) Younger Dryas-type events. The latter result from the restart of the oscillations after a glacial maximum and can be regarded as Dansgaard-Oeschger stadials, overprinted by rapidly changing boundary conditions. |
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