The Use of a Hydrological Catchment Model to Determine the Occurrence of Temporal Creeping in Deep-seated Landslides
48(4):153-162Sheng-En Lin  Ya-Hsin Chan  Chih-Yu Kuo * Rou-Fei Chen  Ya-Ju Hsu 
Kuo-Jen Chang  Shin-Ping Lee  Ruo-Ying Wu  Ching-Weei Lin 
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Application of Climate Change Scenario Data to Assess Debris Flow Impact and Volume
Application of a High-Resolution Digital Surface Model Produced by an Unmanned Aerial Vehicle in Canopy Gap Interpretation and Slope Stability Assessment
Scour from Vertical Drop through Flume Experiment and FLOW-3D
Elevation Variation Study in a Watershed Using Historical Topographic Maps
48(4):197-205Ming-Te Sun Kuei-Lin Fu Kun-Che Chan Yu-Wen Su*
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|Elevation Variation Study in a Watershed Using Historical Topographic Maps|
|Ming-Te Sun Kuei-Lin Fu Kun-Che Chan Yu-Wen Su*|
In this study, we used historical topographic maps,
satellite images, and original aerial photographs,
which were taken using aerial stereo photography technology, to make digital elevation models that mimicked the recovery process of topographic evolution. After reviewing the three types of maps and images, we chose the Putanpunas stream watershed to mimic the recovery process of topographic evolution. Aerial photos were used to construct a digital elevation model for analyzing the topographic evolution. We found the largest change in elevation to be 45 m at an upstream location. Midstream and downstream changes in elevation were less than 8 m. A hydrological analysis provided solid evidence confirming the accuracy of the mimicked topographic evolution of a landslide site. Utilizing these maps and images in combination will serve as a powerful tool for regional planning, hazard assessment, sediment transport management, and environmental protection.
Key Words: Slope variation, topographic map, digital elevation model.
〔1〕Soil and Water Conservation Bureau, Council of Agriculture, Executive Yuan, Nantou 540, Taiwan, R.O.C.
〔2〕Ecological Soil and Water Conservation Research Center, National Cheng Kung University, Tainan 701, Taiwan, R.O.C.
* Corresponding Author. E-mail : email@example.com
Participation Motivation, Organizational Commitment, and Job Satisfaction for Soil and Water Conservation Volunteers