Method of Estimating Slope Movement Area using InSAR Analysis

Abstract

In order to reduce significant damage caused by large-scale of land movement, it is important to detect a sign of large-scale of sediment movements from minute-scales of slope movement at an early stage. Interferometric SAR (InSAR) analysis is considered as an effective method for monitoring land movements. Since we think that it is necessary to have a method for estimating the areas of slope movement indicating a possibility of landslide, which could be helpful for initial actions for disaster countermeasure, we approach the InSAR analysis method. In this study, we compared InSAR analysis data with the data of slope movement collected from a field survey and evaluated it with accuracy rate for estimating several patterns from movements of areas with micro-topography.
From this study, we know that InSAR analysis would be effective way to estimate a slope movement of broad areas having micro-topography, showing a high frequency of InSAR fringes.