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The Analysis of Hydrological Response Structure Based on Spatial Correlation of Extracted Geomorphic Variables by Using DEM  

Kim, Joo-Cheol (수자원공사 수자원연구원)
Choi, Yong-Joon (충남대학교 대학원 토목공학과)
Kim, Jae-Han (충남대학교 토목공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.18, no.2, 2010 , pp. 69-78 More about this Journal
Abstract
The hydrological-geomorphic character is closely related with runoff in basin. A development of GIS greatly helps investigating about mechanism between theirs. We analyze local slope and hillslope length which are related with hydrological response. But variation of these geomorphic variables has very wide range at each pixel. So there's a limit as to use directly. Therefore we investigate a relation between hydrological response and distributed geomorphic variables according to statistical character of distributed map considering spatial correlation. As a result, the local slope affects peak discharge, and the hillslope length affects peak discharge and time, mean and variance of hydrological response. Henceforth these hydrological-geomorphic analyze methods can be improved that hydrology response is directly analogized with DEM data.
Keywords
Drainage Density; Local Slope; Spatial Variability; Hydrological Response;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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