Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3224704t&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 24, CiteID L24704
Astronomy and Astrophysics
Astronomy
3
Cryosphere: Sea Ice (4540), Global Change: Abrupt/Rapid Climate Change (4901, 8408), Paleoceanography: Astronomical Forcing, Paleoceanography: Global Climate Models (1626, 3337), Paleoceanography: Thermohaline
Scientific paper
The possible role of sea-ice feedbacks in the climatic response to orbital forcing at high northern latitudes is studied with a coupled climate model (ECBilt-CLIO). It is found that boreal summer insolation is critical for the sea-ice response. When summer insolation is high (low) the sea-ice fraction decreases (increases) at the margins of the permanent sea-ice cover during the whole year. More importantly, rapid shifts in GIN (Greenland-Iceland-Norway) Sea ice cover are found to be less (more) frequent for relatively high (low) summer insolation. These events, which are characterized by a sudden expansion in sea-ice cover, result in reduced GIN Sea convection, a reduction of the Atlantic thermohaline circulation by 5-10 Sverdrups and decreased air temperatures at high latitudes.
Hilgen Frederik J.
Lourens Lucas J.
Tuenter E.
Weber Susanne L.
No associations
LandOfFree
Sea-ice feedbacks on the climatic response to precession and obliquity forcing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sea-ice feedbacks on the climatic response to precession and obliquity forcing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sea-ice feedbacks on the climatic response to precession and obliquity forcing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1432842