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http://dx.doi.org/10.7780/kjrs.2004.20.2.91

Application of EOC Images to Developed the GIUH  

Choi, Hyun (Dept. of Civil Eng., Pusan national university)
Kang, In-Joon (Dept. of Civil Eng., Pusan national university)
Hong, Sun-Heun (Dept. of Civil Eng., Miryang national university)
Publication Information
Korean Journal of Remote Sensing / v.20, no.2, 2004 , pp. 91-102 More about this Journal
Abstract
This paper reflects the estimation of using the EOC(Electro-optical Camera) images supporting GIUH(geomorphological instantaneous unit hydrograph) approach. We have analyzed GIUH in its density and frequency distribution by creating a DEM(digital elevation model) for the sub basin produced from the EOC images and examined topographical and hydrological application possibility of the EOC images. In this process, we have topographical basin characteristic analysis that use the remote sensing technique analyzing the DEM creation process of the EOC stereo images by studying the basic topographical hydrology analysis about abstraction technique since it is flirty complex and is more time-consuming than other method. we executed statistical analysis of a basin size and river length using the frequency function after divided lattice spacing applied have to the sub river basin from the image data and the digital map into 10m intervals ranging from 10m to 100m. After comparing and examining the peak and time to peak of the GIUH, we proceeded with a comparative analysis by lattice concerning the topographical divergence rate, area ratio, length ratio. Accumulating the peak and time to peak of the GIUH is altered to non-linear form in accordance to lattice dimension as well as basin factor. It was proved that the lattice dimension is one of the important factors about the peak and time to peak of the GIUH.
Keywords
EOC; GIUH; DEM; Peak and Time to Peak;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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