HR: 11:20h
AN: PP31D-05 INVITED     [PDF]
TI: Ice-Sheet Model Simulations of the Greenland Ice Sheet and Canadian Arctic Ice Caps in the Last Interglacial Period
AU: * Marshall, S J
EM: shawn.marshall@ucalgary.ca
AF: University of Calgary, Earth Sciences 356 University of Calgary 2500 University Dr NW, Calgary, AB T2N 1N4 Canada
AB: An ice sheet model is used to reconstruct high Arctic ice masses during the last interglacial period, based on climate model simulations from the NCAR CSM (B. Otto-Bleisner, unpublished). The ice dynamics models includes subgrid topographic and mass balance parameterizations that allow simulation of regional-scale icefields in the Canadian Arctic. Model simulations address the hypothesis of Koerner and Fisher (2002) that high Arctic icefields retreated dramatically in the last interglacial period. Simulations of Greenland Ice Sheet retreat based on ice-core climate reconstructions are compared to Eemian ice sheet reconstructions driven by the NCAR CSM simulations. The time scale of Eemian ice sheet retreat is discussed in the context of comparisons between Eemian and future climate change. \vskip3mm\noindent {\sl References} \vskip2mm\noindent\hangindent=24pt \hangafter=1 Koerner, R.M.~and D.A.~Fisher, 2002, Ice-core evidence for widespread Arctic glacier retreat in the Last Interglacial and the early Holocene. Annals of Glaciology, 35, 19--24.
DE: 1620 Climate dynamics (3309)
DE: 1827 Glaciology (1863)
DE: 3309 Climatology (1620)
DE: 3322 Land/atmosphere interactions
DE: 3344 Paleoclimatology
SC: Paleoceanography and Paleoclimatology [PP]
MN: 2003 Fall Meeting