In this paper, the GIS technology and river water quality monitoring were integrated to design an intelligent water environment monitoring and disaster warning system. The designed system can not only provide web publishing service for water environment monitoring, but it can also prompt to the user the possibility of water disaster according to the change of some important parameters in water,...

Coverage Geometry Property Set

Progress in GIS is increasingly dependent on the recognition that it plays a significant role as a “pure science.” This recognition is necessary to help stabilize the semantics of GIS terms, and to establish precise expected behaviors for GIS components. Both of these developments are essential if GIS is to help advance our knowledge of our environment or to be successful in the marketplace. Th...