Inception of the Northern European ice sheet due to contrasting ocean and insolation forcing

About 115,000 yr ago the last interglacial reached its terminus and nucleation of new ice-sheet growth was initiated. Evidence from the northernmost Nordic Seas indicate that the inception of the last glacial was related to an intensification of the Atlantic Meridional Overturning Circulation (AMOC)...

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Bibliographic Details
Published in:Quaternary Research
Main Authors: Risebrobakken, Bjorg, Dokken, Trond, Ottera, Odd Helge, Jansen, Eystein, Gao, Yongqi, Drange, Helge
Format: Article in Journal/Newspaper
Language:English
Published: Academic Press Inc Elsevier Science 2007
Subjects:
glacial inception
Nordic Seas
Northern European ice sheets
palco-reconstruction
OGCM
AMOC
insolation
insolation gradient
Ice Sheet
Online Access:https://archimer.ifremer.fr/doc/00233/34441/82768.pdf
https://doi.org/10.1016/j.yqres.2006.07.007
https://archimer.ifremer.fr/doc/00233/34441/
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Summary:About 115,000 yr ago the last interglacial reached its terminus and nucleation of new ice-sheet growth was initiated. Evidence from the northernmost Nordic Seas indicate that the inception of the last glacial was related to an intensification of the Atlantic Meridional Overturning Circulation (AMOC) in its northern limb. The enhanced AMOC, combined with minimum Northern hemisphere insolation, introduced a strong sea-land thermal gradient that, together with a strong wintertime latitudinal insolation gradient, increased the storminess and moisture transport to the high Northern European latitudes at a time when the Northern hemisphere summer insolation approached its minimum.

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