Impact of including fully interactive Greenland and Antarctic ice sheets on the climate sensitivity of an Earth system model of intermediate complexity

Heiko Goelzer, Marie-France Loutre, Anne Mouchet, Philippe Huybrechts, Thierry Fichefet, Hugues Goosse

Research output: Chapter in Book/Report/Conference proceedingMeeting abstract (Book)

Abstract

We use the Earth System Model of Intermediate Complexity LOVECLIM to show the effect of coupling fully interactive ice sheets on the simulated climate response to a 2xCO2 stabilization scenario. For this purpose a number of different parameter sets have been defined for LOVECLIM, covering a wide range of the models sensitivity to greenhouse warming. We analyze the effect and physical mechanism of ice-climate interactions introduced by the dynamic ice sheets for the ensemble of different parameter sets. We find a lower climate sensitivity of the model when fully coupled ice sheets are included, an effect, which scales with increasing freshwater fluxes from the melting Greenland and Antarctic ice sheets. In both cases, changes in oceanic heat uptake and sea-ice-albedo feedbacks play a mayor role in attenuating the warming.
Original languageEnglish
Title of host publicationAmerican Geophysical Union, Fall Meeting 2009, abstract #A31A-0077
Publication statusPublished - 2009
EventUnknown -
Duration: 1 Jan 2009 → …

Conference

ConferenceUnknown
Period1/01/09 → …

Keywords

  • Ice sheets
  • Earth system modeling
  • Climate dynamics

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