Direct north-south synchroniszation of abrupt climate change record in ice cores using Beryllium 10

Raisbeck, G.M.; Yiou, F.; Jouzel, J.; Stocker, Thomas (2007). Direct north-south synchroniszation of abrupt climate change record in ice cores using Beryllium 10. Climate of the past, 3(3), pp. 541-547. Göttingen: Copernicus Publications 10.5194/cp-3-541-2007

[img]
Preview
Text
cp-3-541-2007.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (1MB) | Preview

A new, decadally resolved record of the 10Be peak at 41 kyr from the EPICA Dome C ice core (Antarctica) is used to match it with the same peak in the GRIP ice core (Greenland). This permits a direct synchronisation of the climatic variations around this time period, independent of uncertainties related to the ice age-gas age difference in ice cores. Dansgaard-Oeschger event 10 is in the period of best synchronisation and is found to be coeval with an Antarctic temperature maximum. Simulations using a thermal bipolar seesaw model agree reasonably well with the observed relative climate chronology in these two cores. They also reproduce three Antarctic warming events observed between A1 and A2.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute

UniBE Contributor:

Stocker, Thomas

ISSN:

1814-9324

Publisher:

Copernicus Publications

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:59

Last Modified:

21 Dec 2014 08:20

Publisher DOI:

10.5194/cp-3-541-2007

Web of Science ID:

000249785600015

BORIS DOI:

10.7892/boris.25263

URI:

https://boris.unibe.ch/id/eprint/25263 (FactScience: 57568)

Actions (login required)

Edit item Edit item
Provide Feedback