CGRG Bibliography of Canadian Geomorphology
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Author : Cochelin, A.B.; Mysak, L.A.; Wang, Z.; and Wang, Y.
Date : 2004.
Title : Simulation of the Last Glacial inception with the Green McGill Paleoclimate Model.
Publication : American Geophysical Union Fall Meeting. December 13-17, 2004. San Francisco, California.
Issue :
Page(s) :
Abstract
The ``green'' McGill Paleoclimate Model (MPM), which now includes an interactive vegetation component, is run between 122 and 80 kyr Before Present (BP) under variable insolation (Milankovitch forcing) and Vostok-derived atmospheric $CO_2$ concentration (radiative forcing). The model simulates the last glacial inception at around 119 kyr BP, which is followed by the buildup of huge ice sheets over the high northern latitudes, especially North America. Due to the addition of a vegetation component to the MPM, more realistic ice volumes and ice sheet distributions are simulated. In agreement with observations, the ice sheets are smaller over Eurasia and larger over North America. The changes in tree, grass and desert cover during the ice growth phase are also investigated. The results show a southward shift of the treeline and an expansion of the desert at high latitudes, as the ice sheets develop.
Bibliography of Canadian Geomorphology