Relaxation oscillators in concert: A conceptual framework for late Pleistocene millenial-scale climate variability.

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Schulz, M., Timmermann, Axel and Paul, A. (2002) Relaxation oscillators in concert: A conceptual framework for late Pleistocene millenial-scale climate variability. Open Access Geophysical Research Letters, 29 . p. 2193. DOI 10.1029/2002GL016144.

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Abstract

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.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-TM Theory and Modeling
Refereed: Yes
Open Access Journal?: No
Publisher: AGU (American Geophysical Union)
Date Deposited: 18 Feb 2008 17:25
Last Modified: 20 Feb 2018 07:59
URI: https://oceanrep.geomar.de/id/eprint/702

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