Proceedings of the Korea Water Resources Association Conference (한국수자원학회:학술대회논문집)
- 2001.05a
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- Pages.25-34
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- 2001
Grid-Based Soil-Water Erosion and Deposition Modeling sing GIS and RS
- Kim, Seong-Joon (Assist. Prof. Dept. of Biological Systems Engrg., Konkuk University)
- Published : 2001.05.01
Abstract
A grid-based KIneMatic wave soil-water EROsion and deposition Model (KIMEROM) that predicts temporal variation and spatial distribution of sediment transport in a watershed was developed. This model uses ASCII-formatted map data supported from the regular gridded map of GRASS (U.S. Army CERL, 1993)-GIS (Geographic Information Systems), and generates the distributed results by ASCIIl-formatted map data. For hydrologic process, the kinematic wave equation and Darcy equation were used to simulate surface and subsurface flow, respectively (Kim, 1798; Kim et al., 1993). For soil erosion process, the physically-based soil erosion concept by Rose and Hairsine (1988) was used to simulate soil-water erosion and deposition. The model adopts sing1e overland flowpath algorithm and simulates surface and subsurface water depth, and sediment concentration at each grid element (or a given time increment. The model was tested to a 162.3 km
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