| Citation: |
LI Wenlong. Application of airborne LiDAR technology in geological hazard investigation in Huangpu District, Guangzhou City[J]. The Chinese Journal of Geological Hazard and Control，2024，35(6): 164-172. DOI: 10.16031/j.cnki.issn.1003-8035.202305016
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In recent years, airborne LiDAR technology has developed rapidly, allowing for the penetration of ground vegetation and the accurate acquisition of ground elevation, which is of great significance for precisely identifying geological hazard points. In order to understand the development characteristics of geological disasters in Huangpu District, Guangzhou, this study utilized airborne LiDAR technology to obtain three-dimensional point cloud and digital orthophoto images covering a total area of 526.5 km2 within district. Combined with traditional manual field investigation methods, the study identified the typical geological disaster development characteristics within the project scope. The interpretation results indicate that geological disasters within the investigation area are distributed in both surface and linear patterns, mainly concentrated in the hilly areas of the central and northern parts, with scattered or no distribution in other areas. There are 435 instances of geological disasters such as collapses and dangerous rock masses,
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