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http://dx.doi.org/10.17663/JWR.2015.17.3.209

An Improvement and Applicability of Physical Disturbance Evaluation Technique by Quantification in River System  

Choi, Heung-Sik (Department of Civil Engineering, Sangji University)
Shim, Kyu-Rang (Department of Civil Engineering, Sangji University)
Lee, Woong-Hee (Department of Civil Engineering, Sangji University)
Publication Information
Journal of Wetlands Research / v.17, no.3, 2015 , pp. 209-220 More about this Journal
Abstract
This study has improved the existed physical disturbance evaluation assessment technique in a river and analysed its applicability. The improvements are the quantitative evaluation items instead of qualitative one by providing the background and their evaluation equations, corresponding detailed itemization of evaluation score, and the direct input of hydraulic characteristics and geometrical changes by numerical simulation. In order to confirm the applicability of improved disturbance evaluation technique, the comparison and analysis between the evaluation results of existed and improved techniques have been carried out by applying to the 6 cases of natural, urban, and mountainous streams. Direct input of numerical simulation results of HEC-RAS enables the evaluation simple for 8 evaluation items excluding the items of habitat environment and bottom substrate. The improved disturbance evaluation technique, which evaluates the degree of disturbance sensitively by the quantitative and detailed itemized evaluations, has been confirmed the appropriate applicability by applying to river systems.
Keywords
River Disturbance; Quantitative Evaluation; Detailed Itemization; Evaluation Equation;
Citations & Related Records
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