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http://dx.doi.org/10.21729/ksds.2021.14.1.41

Detection of Levee Displacement and Estimation of Vulnerability of Levee Using Remote Sening  

Bang, Young Jun (Dept. of Civil Engineering, Hongik Univ.)
Jung, Hyo Jun (Dept. of Civil Engineering, Hongik Univ.)
Lee, Seung Oh (Dept. of Civil Engineering, Hongik Univ.)
Publication Information
Journal of Korean Society of Disaster and Security / v.14, no.1, 2021 , pp. 41-50 More about this Journal
Abstract
As a method of predicting the displacement of river levee in advance, Differential Interferometry (D-InSAR) kind of InSAR techniques was used to identify weak points in the area of the levee collapes near Gumgok Bridge (Somjin River) in Namwon City, which occurred in the summer of 2020. As a result of analyzing the displacement using five images each in the spring and summer of 2020, the Variation Index (V) of area where the collapse occurred was larger than that of the other areas, so the prognostic sysmptoms was detected. If the levee monitoring system is realized by analyzing the correlations with displacement results and hydrometeorological factors, it will overcome the existing limitations of system and advance ultra-precise, automated river levee maintenance technology and improve national disaster management.
Keywords
Climate change; levee displacement; In-SAR; Sentinel-1; SNAP;
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