The Application of Slope-unit Derived by Aspect in Prediction of Large-scale Landslide Potential
Date Issued
2014
Date
2014
Author(s)
Wang, Jian-Fang
Abstract
Since the 921earthquake, the typhoons and earthquakes induced the landslides often. In order to avoid other as Shao-lin, Tsaoling and Chiu-fen-er-shan landslides happen, the most important thing is to improve the early warning and of land use regulation which can minimum the damage in landslide.
There are many evaluate and mapping method for prediction of landslide potential area. One of the important part is the selecting of mapping unit. The research of slope-unit is more noticeable; different from the grid unit and unique condition unit, slope –unit, slope-unit have better ability in describing slope’s alternation. Besides, many research prove that the slope-unit have better result in prediction of landslide potential than others.
Taking Namasha district in Kaohsiung study area, this research use slope-unit derive by aspect, compared with aspect graph, slope graph, satellite images, aerial photos and geology map to construct convenient and high accuracy principle of making slope-unit; and figure out the affecting factors of landslide potential of fisher’s discriminant function to establish landslide potential model. Then, discuss the regional similarity to predict other region’s landslide potential.
Subjects
大規模崩塌
坡向坡單元
崩塌潛勢預測
費雪區別函數
相似性指標
SDGs
Type
thesis
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