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Terrestrial LiDAR Measurements and Analysis of Topographical Changes on Malipo Beach

지상 LiDAR를 이용한 만리포 해변 정밀 지형측량 및 지형 변화 분석

  • Shim, Jae-Seol (Climate Change & Coastal Disaster Research Department, KORDI) ;
  • Kim, Jin-Ah (Saemangeum Coastal Research Group, KORDI) ;
  • Park, Han-San (Climate Change & Coastal Disaster Research Department, KORDI) ;
  • Kim, Seon-Jeong (Climate Change & Coastal Disaster Research Department, KORDI)
  • 심재설 (한국해양연구원 기후.연안재해연구부) ;
  • 김진아 (한국해양연구원 새만금해양환경연구단) ;
  • 박한산 (한국해양연구원 기후.연안재해연구부) ;
  • 김선정 (한국해양연구원 기후.연안재해연구부)
  • Published : 2010.03.30

Abstract

A terrestrial LiDAR was used to acquire precise and high-resolution topographical information of Malipo beach, Korea. Terrestrial LiDAR and RTK-DGPS (VRS) were mounted on top of a survey vehicle and used to scan 20 times stop-and-go method with 250 m spacing intervals at ebb tides. In total, 7 measurements were made periodically from 2008 to 2009 and after each beach replenishment event. We carried out GIS-based 3D spatial analysis such as slope and volume calculations in order to assess topographical changes over time. In relation to beach replenishment, comparative analysis of each volume change revealed them to be similar. This result indicates that the terrestrial LiDAR measurements are accurate and can be used to analyze temporal topographical changes. In conclusion, the methodology employed in this study can be used efficiently to exercise coastal management through monitoring and analyzing beach process such as erosion and deposition.

Keywords

References

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