Study Of The Reservoirs Management Web GIS Based On Silverlight

Internet's rapid spread and development has provided new opportunities for GIS's development.WebGIS technology has become the new hot spot of GIS technology.The study focus of this paper explores a comprehensive utilization of Silverlight and WebGIS technology,and aims to achieve a prototype of reservoir management WebGIS based on Silverlight.This paper is divided into three parts.In the first part,it introduces water information technology, GIS's concepts and their development status and trend, and describes WebGIS structure, characteristics, the realization of related technology, working principle, construction method ,main development trends and cutting-edge applications.The second part discusses reservoir management WebGIS architecture based on Silverlight,the main patterns and trends development of system architecture, offers distributed object technology based on a five-layer architecture and design patterns, analyzes the database server, map server, middleware, Web server and the client part of the design of the five elements and their mutual relations , and studies architecture of the key technologies involved . The third part introduces WebGIS reservoir management based on Silverlight function module partition, spatial database, data management and detailed design, implementes a reservoir management WebGIS prototype based on Silverlight.Silverlight is a RIA Web mainstream technology,it forms a new direction WebGIS.This paper uses Silverlight-based application model of Web GIS technology to Zhangze Reservoir as an example, develops the reservoir management information system , and does a little research and experiments for the water industry's WebGIS application of new technologies.