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http://dx.doi.org/10.11108/kagis.2010.13.1.101

Two-dimensional Inundation Analysis Using Stochastic Rainfall Variation and Geographic Information System  

Lee, Jin-Young (School of Archi. & Civil Engineering, Kyungpook National University)
Cho, Wan-Hee (School of Archi. & Civil Engineering, Kyungpook National University)
Han, Kun-Yeun (School of Archi. & Civil Engineering, Kyungpook National University)
Ahn, Ki-Hong (Dam & Watershed Dept., K-Water)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.13, no.1, 2010 , pp. 101-113 More about this Journal
Abstract
Recently actual rainfall pattern is decreasing rainy days and increasing in rainfall intensity and the frequency of flood occurrence is also increased. To consider recent situation, Engineers use deterministic methods like a PMP(Probable Maximum Precipitation). If design storm wouldn't occur, increasing of design criteria is extravagant. In addition, the biggest structure cause trouble with residents and environmental problem. And then it is necessary to study considering probability of rainfall parameter in each sub-basin for design of water structure. In this study, stochastic rainfall patterns are generated by using log-ratio method, Johnson system and multivariate Monte Carlo simulation. Using the stochastic rainfall patterns, hydrological analysis, hydraulic analysis and 2nd flooding analysis were performed based on GIS for their applicability. The results of simulations are similar to the actual damage area so the methodology of this study should be used about making a flood risk map or regidental shunting rout map against the region.
Keywords
Rainfall Variation; Multivariate Monte Carlo; GIS; Inundation Analysis; Johnson System; Log-Ratio Method;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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