Myung-Hee Jo
Professor
Kyungpook National University
South Korea

Abstract
Mapping of the Levee Stability System Using LiDAR Data

Mapping of the levee stability system is necessary for accessing levee stability and evaluating the levee failure risks on the levee surfaces. This paper introduces a method for mapping of the levee stability system using the LiDAR data. First of all, the levee top and slope plates are generated from the LiDAR data by the slope analysis. The next step is to identify the major features and the eroded plates on the levee surfaces by the elevation difference analysis and the morphological filtering. Then, the levee lines are generated from each levee top and slope plates by the modified convex hull algorithm and the spline function. After that, the interval (50 ~ 100m) is set for accessing the stability of the small area of the levees. In this research, we divide the levee failure risks into the multiple types (overtopping, top stability and slope stability), and measure each levee failure risk on the small area of the levees divided by the interval. We divide the level of the levee failure risks into the various levels (safe, low level, middle level and high level) to evaluate the levee failure risks on the small areas of the levees. If the small area of the levees has the levee failure risks, the levee lines located on the area are shown with the specific colors (yellow, green, blue and red). Using the introduced method, the levee stability system that shows the area having the levee failure risks is constructed.