Change search
ReferencesLink to record
Permanent link

Direct link
Sensitivity of the North Atlantic circulation to break-up of the marine sectors of the NW European ice sheets during the last Glacial: A synthesis of modelling and palaeoceanography
Stockholm University, Faculty of Science, Department of Geological Sciences.
Show others and affiliations
2012 (English)In: Global and Planetary Change, ISSN 0921-8181, Vol. 98-99, 153-165 p.Article in journal (Refereed) Published
Abstract [en]

The marine-based Atlantic periphery of the last NW European Ice Sheet experienced significant advances and retreats of its marine sector during its existence. It therefore had considerable potential to intermittently inject freshwater or ice pulses to the North Atlantic. These European inputs had poorly known consequences for ocean circulation and climate. Here we examine the history of the western margin of the European Ice Sheet, from 34 to 15 cal ka BP, and use a combination of modelling and proxy evidence to explore the impact on the North Atlantic of the fresh water and iceberg injections that accompanied phases of retreat of the marine sector of the NW European Ice Sheet. We find that the lack of geographical synchronicity in the responses of the different components of the 3000 km long sector meant that the scale of the climate consequences of ice discharge most likely remained regional, except during the final deglaciation phase, around 17-15 cal ka BP. At this time, as the later component of the recently introduced concept of an extended Heinrich event H1, both proxy and modelling evidence suggest rapid sector collapse led to partial shut-down of the Atlantic overturning and a basin-wide cooling.

Place, publisher, year, edition, pages
2012. Vol. 98-99, 153-165 p.
Keyword [en]
European Ice Sheet, Marine ice break-up, Iceberg modelling, Modelling and palaeodata synthesis
National Category
Physical Geography Geology
URN: urn:nbn:se:su:diva-83821DOI: 10.1016/j.gloplacha.2012.09.004ISI: 000310862500015OAI: diva2:577104


Available from: 2012-12-14 Created: 2012-12-14 Last updated: 2012-12-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Greenwood, Sarah L.
By organisation
Department of Geological Sciences
In the same journal
Global and Planetary Change
Physical GeographyGeology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 35 hits
ReferencesLink to record
Permanent link

Direct link