A web-based decision support system for slopeland hazard warning.
A WebGIS decision support system for slopeland hazard warning based on real-time monitored rainfall is introduced herein. This paper presents its framework, database, processes of setting up the threshold line for debris flow triggering and the calculation algorithm implemented in the system. The web-based GIS via the Microsoft Internet Explorer is designed for analysis of areas prone to debris flows outburst and landslides during torrential rain. Its function is to provide suggestions to commander for immediate response to the possibility of slopeland hazards, and determine if pre-evacuation is necessary. The defining characteristics of the internet-based decision support system is not to automatically show the dangerous areas but acts as part of the decision process via information collection to help experts judge the prone debris flow creeks and the tendency of landslides initiation. The combination with real-time rainfall estimation by the QPESUMS radar system is suggested for further enhancement.
Yu
Fan-Chieh
FC
National Chung Hsing University, Taichung, Taiwan.
Chen
Chien-Yuan
CY
Lin
Sheng-Chi
SC
Lin
Yu-Ching
YC
Wu
Shang-Yu
SY
Cheung
Kei-Wai
KW
D003661:Decision Support Techniques; D040362:Geographic Information Systems; D015386:Hazardous Substances / Q000032:analysis*; D020407:Internet; D013624:Taiwan; D014872:Water Movements
D015386:Hazardous Substances