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An Analysis of Terrain Slope and Drainage Basin Area by DEM Grid Size  

양인태 (강원대학교 토목공학과)
김연준 (대원과학대학 토목과)
유영걸 (강원대학교 토목공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.20, no.3, 2002 , pp. 303-311 More about this Journal
Abstract
Recently, the research that analyze topography parameters that need in hydrology analysis using GIS techniques is achieved. DEM that is used in topography analysis can be constructed effectively using contour data of digital map. Therefore, DEM's applicability is increasing gradually in several fields. In this study, DEM of 20∼l00m grid size was applied PYONGCHANG river and JUBANG river basin to analyze what effect DEM grid size causes about slope and drainage watershed at topography parameter extraction. This study drew a regression equation about slope change by DEM grid size. As a result, according as DEM grid size increases, slope decreases, and basin area could know that is not change almost.
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Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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2 Digital terrain modeling : a review of hydrological, geomorphological, and biological applications /
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[ Weibel R.;Heller M.;Maguire D.J.;Goodchild M.F.;Rhind D.W. ] / Geographical Information Systems
5 A method for drawing slope maps from contour maps by automatic data acquisition and processing /
[ Ceruti, A. ] / Computer Geoscience   DOI   ScienceOn
6 Progressive sampling for digital terrain models /
[ Makarovic B. ] / ITCJ.
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[ Skidmore A.K. ] / International Journal of GIS
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9 /
[ Burrough P.A. ] / Principles of GIS for land resource assessment
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[ 최영재 ] / 강원대학교 박사학위논문
11 지형공간정보체계를 이용한 유역분석 /
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