Reconstructing the evolution of hillslope-valley topography based on DTM from airborne LiDAR (Central Sudetes, Poland)

摘要

The aim of this study is to check whether it is possible to reconstruct the evolution of hillslope-valley topography of the Kamienne Mts. by using airborne LiDAR data. Detailed analysis of relief and geological maps in ArcMap 10.5 and analysis of slope and valley cross sections in Surfer 13 allowed to outline specific types of hillslope-valley topography. These types vary from small landslides with poorly developed relief to vast landslides with main scarps exceeding the mountain ridge. The types represent subsequent stages of geomorphic evolution which leads to disintegration of the mountain ridge studied. All consecutive stages of relief development were found in present relief as different landslide slopes are probably of different age or develop slower or faster. The study carried out in the Kamienne Mts. shows that DTM from airborne LiDAR data can be a useful tool not only in quantitative analyses of relief but also for qualitative analyses such as reconstructing relief evolution.