Extended Data Fig. 5: Temperature and sea ice changes in response to North Atlantic freshwater perturbation. | Nature Geoscience

Extended Data Fig. 5: Temperature and sea ice changes in response to North Atlantic freshwater perturbation.

From: A salty deep ocean as a prerequisite for glacial termination

Extended Data Fig. 5

Shown are surface temperature and sea-ice area fraction changes (iso-lines) for a) interglacial (PIDPERT - PIDCTRL), b) 40ka (40kaPERT - 40kaCTRL) and c) Last Glacial Maximum (LGMPERT - LGMCTRL) conditions, averaged between model years 700-800. The north Atlantic cooling is most pronounced in the LGM perturbation experiment, which is linked to relatively pronounced sea ice cover increase and associated feedbacks. Together with the southern high latitude responses this is indicating a more pronounced interhemispheric seesaw response in surface temperature in the LGM perturbation experiment than under 40 ka or pre-industrial conditions.

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