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http://dx.doi.org/10.11108/kagis.2010.13.4.157

Application of a Grid-Based Rainfall-Runoff Model Using SRTM DEM  

Jung, In-Kyun (Dept. of Civil and Environmental System Engineering, Konkuk University)
Park, Jong-Yoon (Dept. of Civil and Environmental System Engineering, Konkuk University)
Park, Min-Ji (Dept. of Civil and Environmental System Engineering, Konkuk University)
Shin, Hyung-Jin (Dept. of Civil and Environmental System Engineering, Konkuk University)
Jeong, Hyeon-Gyo (River Information Center, Han River Flood Control Center)
Kim, Seong-Joon (Dept. of Civil and Environmental System Engineering, Konkuk University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.13, no.4, 2010 , pp. 157-169 More about this Journal
Abstract
In this study, the applicability of SRTM(The Shuttle Radar Topography Mission) DEM(Digital Elevation Model) which is one of the remotely sensed shuttle's radar digital elevation was tested for use as the input data in a grid-based rainfall-runoff model. The SRTM DEM and digital topographic map derived DEM(TOPO DEM) were building with 500m spatial resolution for the Chungju-Dam watershed which located in the middle east of South Korea, and stream-burning method was applied to delineate the proper flow direction for model application. Similar topographical characteristics were shown as a result of comparing elevation, flow-direction, hydrological slope, number of watershed cell, and profile between SRTM DEM and TOPO DEM. Two DEMs were tested by using a grid-based rainfall-runoff model named KIMSTORM with 6 storm events. The results also showed no significant differences in average values of relative error for both peak runoff(0.91 %) and total runoff volume(0.29 %). The results showed that the SRTM DEM has applicability like TOPO DEM for use in a grid-based rainfall-runoff modeling.
Keywords
Digital Elevation Model; SRTM DEM; Distributed Rainfall-Runoff Model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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