| Summary: | 碩士 === 國立成功大學 === 工程管理碩士在職專班 === 106 === Taiwan is situated within the Pacific Rim seismic belt. The frequent crustal movement gives rise to loose soil. When the rainy season comes, the Western-Pacific typhoon and rainstorms cause severe disasters. As the mountain areas in Taiwan feature precipitous terrain, widespread steep slopes, heavy rainfall, and accumulation of rock and soil, under such conditions, it is easy to produce debris flow. The Soil and Water Conservation Bureau of the Council of Agriculture under the Executive Yuan (the SWCB for short below) is the competent authority for preventing and controlling the mountain areas in Taiwan. In order to collect the relevant data of debris flow and publish the correct disaster information at the appropriate time, the SWCB started to set up a new-generation debris flow observation station in 2002 and carried out the work of collecting the data produced from the observation by multi-scale instruments, and set out to develop mobile debris flow observation stations in 2003. As of today, 3 mobile debris flow monitoring stations (Mobile Stations for short below) have been put into use for monitoring and preventing debris flow disasters.
The Mobile Stations are dispatched when a typhoon invades Taiwan. It is critical for the debris flow monitoring to select the appropriate streams for monitoring among the 1719 streams with a potential for debris flow across Taiwan. The Analytic Network Process (ANP) derives from the Analytic Hierarchy Process (AHP), ANP encompasses the decision criteria (cluster), elements, nodes and connection line, the difference with AHP is that the Dependence is joined and the role of feedback is played on the supermatrix, the purpose of which is to produce the impact of elements interaction. So, the Study, by using the literature review, establishes the main assessment standard and the indicators contained in the assessment system, and acquires the overall decision weight values of the assessment elements. The Study conducts empirical research into potential streams, and calculates the flow by ANP on the basis of the stream literature data and site investigation data, and with reference to the typhoon rainfall forecast by the Central Weather Bureau.
By using the above process, a set of mobile debris flow monitoring stations should be established at a place suitable for monitoring the coming of a Typhoon, so that the data collected from the mobile monitoring station can be used by the debris flow response unit as the reference for a decision, and the capability of the mobile debris flow monitoring station of collecting the data is enhanced.
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