CGRG Bibliography of Canadian Geomorphology
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Author : Anslow, F.; Jarosch, A.; Flowers, G.; Whele, B.; and Clarke, G.K.C.
Date : 2008.
Title : High-resolution regional glacier modelling driven by NARR data.
Publication : Water, Weather, and Climate: Science Informing Decisions. Canadian Meteorological and Oceanographic Society 2008 Congress. May 25-29, 2008, Kelowna, British Columbia.
Issue :
Page(s) :
Abstract
As a testing ground for large-scale modelling of polar glaciers we apply a coupled mass balance/ice dynamics model to an area surrounding two small valley glaciers in the St. Elias Mountains, Yukon. Our overall modelling aim is to generate topographically detailed (200 m grid spacing) glacier mass balance to drive a regional ice dynamics model for simulations of the regional response of glaciers to changing climate. Glacier mass balance is computed from a temperature/radiation based ablation model while accumulation is determined from fields derived from a linear model of orographic precipitation. Input data for these models is derived from the North American Regional Reanalysis. We compare modelled ablation with stake-based ablation measurements and with acoustic range sensor data from two adjacent glaciers during summer, 2007. Model accumulation is compared with accumulation measurements. We also test the feasibility of validating the model with high resolution snow cover maps derived from satellite imagery and present first results of a regional ice dynamics model forced by the high resolution mass balance.
Bibliography of Canadian Geomorphology