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Indexed by:会议论文

Date of Publication:2004-01-01

Included Journals:EI、CPCI-S

Volume:289

Issue:289

Page Number:80-87

Key Words:3-D-scene visualization; decision support system; emergency flood control; Web GIS

Abstract:Web GIS integrates Web and GIS (geographic information system) together in order to take advantage of their special characteristics. The development of Web GIS, has played an important role in information query and emergency service flood control decision support systems. According to the characteristics of flood control and Web GIS, this paper describes the requirement analysis of emergency services, and presents the key techniques in the process of applying Web GIS to emergency flood control. The key techniques mainly include site location, earth-rock volume calculation, emergency material operation and 3-D-scene visualization in the process of levee emergency repair. Through a case study in Heilongjiang Province, it was shown that it is feasible and necessary to design a Web GIS-based emergency flood control system (EFCS), and the technique of Web GIS cannot only improve the efficiency of emergency flood control, but it can also guarantee the decision's reliability.