Japan Geoscience Union Meeting 2015

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International Session (Oral)

Symbol H (Human Geosciences) » H-TT Technology & Techniques

[H-TT09] GIS

Mon. May 25, 2015 9:00 AM - 10:45 AM 101A (1F)

Convener:*Takashi Oguchi(Center for Spatial Information Science, The University of Tokyo), Yuji Murayama(Graduate School of Life and Environmental Sciences), Ryosuke Shibasaki(Center for Spatial Information Science, the University of Tokyo), Shin Yoshikawa(Faculty of Engineering, Osaka Institute of Technology), Chair:Yuji Murayama(Graduate School of Life and Environmental Sciences), Takashi Oguchi(Center for Spatial Information Science, The University of Tokyo)

10:00 AM - 10:15 AM

★ [HTT09-05] Automated measurement of sand dune migration rates using multi-temporal LiDAR data and GIS

*Pinliang DONG1 (1.Department of Geography, University of North Texas, USA)

Keywords:Multi-temporal LiDAR, GIS, Digital elevation model, Sand dune migration, White Sands

Understanding how sand dunes form and migrate has long been a research topic in Earth and planetary surface processes. An automated method was developed for measuring sand dune migration rates along the prevailing wind direction using multi-temporal light detection and ranging (LiDAR) data and geographic information systems (GIS). Compared with traditional methods which involve labor-intensive and time-consuming measurements at individual locations, the new method allows for automated measurement of sand dune migration rates at hundreds or thousands of locations in a study area, and generation of continuous raster datasets showing the spatial pattern of sand dune migration rates. Multi-temporal LiDAR data from White Sands, New Mexico (USA) were used to demonstrate the application of the new method.