Antarctic ice-sheet melting provides negative feedbacks on future climate warming

Details Antarctic ice-sheet melting provides negative feedbacks on future climate warming Antarctic ice-sheet melting provides negative feedbacks on future climate warming

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3517705s&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 17, CiteID L17705

Physics

Geophysics

12

Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513), History Of Geophysics: Ocean Sciences, Cryosphere: Ice Sheets, Paleoceanography: Global Climate Models (1626, 3337), Biogeosciences: Climate Dynamics (1620)

Scientific paper

We show by using a three-dimensional climate model, which includes a comprehensive representation of polar ice sheets, that on centennial to millennial time scales Antarctic Ice Sheet (AIS) can melt and moderate warming in the Southern Hemisphere, by up to 10°C regionally, in a 4 × CO2 scenario. This behaviour stems from the formation of a cold halocline in the Southern Ocean, which limits sea-ice cover retreat under global warming and increases surface albedo, reducing local surface warming. Furthermore, we show that AIS melting, by decreasing Antarctic Bottom Water formation, restrains the weakening of the Atlantic meridional overturning circulation, which is a new illustration of the effect of the bi-polar oceanic seesaw. Consequently, it appears that AIS melting strongly interacts with climate and ocean circulation globally. It is therefore necessary to account for this coupling in future climate and sea-level rise scenarios.

Affiliated with

Also associated with

No associations

Rating

Antarctic ice-sheet melting provides negative feedbacks on future climate warming 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 Antarctic ice-sheet melting provides negative feedbacks on future climate warming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antarctic ice-sheet melting provides negative feedbacks on future climate warming will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1334256