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A Study on Correlation between RUSLE and Estuary in Nakdong River Watershed  

Hwang, Chang-Su (국립해양조사원 측량과)
Kim, Kyung-Tag (건설기술연구원 수자원연구실)
Oh, Che-Young (부경대학교 위성정보과학과)
Jin, Cheong-Gil (부경대학교 위성정보과학과)
Choi, Chul-Uong (부경대학교 위성정보과학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.18, no.3, 2010 , pp. 3-10 More about this Journal
Abstract
The development of various spatial information and GIS has led to the research on interpretation of natural phenomena and correlational studies. This study is aimed to analyze the correlation between RUSLE(Revised Universal Soil Loss Equation) around Nakdong River area during the period of 1955 to 2005 and the amount of area change in the islets at the estuary terrain calculated in the study "Change Detection at the Nakdong Estuary Delta using Satellite Image and GIS". For the calculation of RUSLE, The 'Revised-USLE' model, a modified USLE model commonly used in Korea was used. For the rainfall erosion factor to calculate and compare the area of islets, the actual observation data for one year before the observation of satellite image from all observatories across Korea was used. The correlation coefficient between RUSLE and area change of islets was 0.57 for Jinwoo Islet; 0.7 for Sinja Islet; 0.87 for Doyodeung. This results showed that there was a great influence from Doyodeung where the main water way of Nakdong River runs. This study showed that the study using USLE for various fields and through identifying the characteristics of each factor is useful to understand natural phenomenon in practice.
Keywords
Nakdong River Watershed; RUSLE; Nakdong Estuary Delta;
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Times Cited By KSCI : 3  (Citation Analysis)
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