Japan Geoscience Union Meeting 2016

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International Session (Poster)

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

[H-TT08] Geoscientific applications of high-definition topography and geophysical measurements

Sun. May 22, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Yuichi S. Hayakawa(Center for Spatial Information Science, The University of Tokyo), Hiroshi, P. Sato(College of Humanities and Sciences, Nihon University), Shoichiro Uchiyama(National Research Institute for Earth Science and Disaster Prevention), Shigekazu Kusumoto(Graduate School of Science and Engineering for Research, University of Toyama), Thad Wasklewicz(East Carolina University), Daniele Giordan(National Research Council, Rome), Hiroyuki Obanawa(Center for Environmental Remote Sensing, Chiba University)

5:15 PM - 6:30 PM

[HTT08-P11] Evaluation of TWI-Derived Soil Depths and DEM-Assisted Terrain Slopes in Tainan Mountain Areas

*Shen Yu Hsiao1, Shih Feng Lin1, Jung Chieh Chang1, Yi Chang1 (1.National Chung Hsing University)

Keywords:TWI, DEM, Soil Depth, Terrain Slope

The study is aimed at evaluating the soil depths from topographic wetness index (TWI) method, and the terrain slopes from a 5m resolution digital elevation model (DEM) in Tainan mountain areas, located in southern Taiwan. The field surveys (field work) for validating the results have been being implemented in recent months. During the field surveys, a soil auger and a Nikon laser rangefinder are used for obtaining the soil depths and terrain slopes, respectively. The related methodologies for obtaining TWI-derived soil depths and DEM-assisted terrain slopes (office work), and the comparison results for office and field works will be well described in this paper. We hope that the research is able to determine the accuracies of the TWI-derived soil depths and the DEM-assisted terrain slopes in Tainan mountain areas.