Monitoring gully erosion from UAV data

Abstract

Gully erosion is recognized as an important process of land degradation. Continuous monitoring of gully erosion is important to determine the damage caused to the land. Terrestrial imaging systems such as handheld cameras are inadequate for monitoring gully erosion damage. Aerial surveys by Unmanned Aerial Vehicles (UAVs) play an important role in monitoring gully erosion. The aim of this paper is to monitor gully erosion with digital photogrammetry technique using UAV data. In this study, Digital Elevation Model (DEM) and orthophoto were produced with UAV data and the directions of gully erosion were determined. This study is also a preliminary study to determine the multi-temporal change of gully erosion.