CGRG Bibliography of Canadian Geomorphology
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Author : Brown, L.J.
Date : 2002.
Title : Scaling up issues in wind erosion modelling.
Publication : Special CGRG Session. Annual Meeting of the Canadian Association of Geographers – Ontario Division. University of Western Ontario, London, Ontario. October 25-26, 2002.
Issue :
Page(s) :
Abstract
Wind erosion is a serious problem in arid and semiarid regions of the world. A number of studies have focused of the small-scale physical processes contributing to wind erosion, such as threshold shear velocity and saltation. These physical processes are based on theory or empirical evidence gathered in wind tunnel experiments in the laboratory or in the field. However, the areas affected by wind erosion are much larger and range in size from agricultural fields to the Sahara Desert. As a result wind erosion modelling is being conducted over large spatial areas. This has been made possible by an increase in computing power and the development of GIS technology. In this paper the issues along with the methods used when small-scale wind erosion processes are scaled up to model at large scales are examined. These issues are not unique to wind erosion modelling but share commonalities with hydrologic modelling and much of the literature devoted to these issues are drawn from that field. Three process-based wind erosion modelling examples are used to highlight these issues and to illustrate the methods employed distributing processes over large areas.
Bibliography of Canadian Geomorphology