Finally, we evaluated the applicability of public safety for outputs of UAV photogrammetry and 3D point clouds derived from terrestrial LiDAR data to analyse and assess the risk of steep slope. Includes unlimited streaming via the Bandcamp app, plus download in mp3, FLAC and more. For collecting the more detailed geological data and analysing quantitatively damage of steep slopes (crack length, bedrock weathering area, etc.), we scanned steep slope area using terrestrial LiDAR system. Steep Hill by Artur Rumiski, released 25 February 2021 1. First, we acquired the aerial imagery of steep slope site by small UAV and conducted a drone mapping process with the Pix4D software. This paper presents experimental results for risk assessment of steep slope using drone mapping and terrestrial LiDAR survey. Particularly, Korea is very vulnerable to landslide disasters because more than 63% of the country is mountainous and it suffers from unpredictable localized heavy rainfall during monsoon season every year. Due to abnormal weather caused by climate change in recently years, natural disaster damages caused by local torrential rains have been increased over the world.
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