Research On Flood Information System Based On GIS And Database

The title of research come from key item of Shannxi province science committee (serial number 2003K12-G5) "Simulation research on floodwater and hydrics diagnostic influence of middle or lower reaches of Weihe plain based on San Menxia waterhouse filling up to make frith of Weihe running up" is one of item of "Tactic researchon general programming of Weihe". Based on lucubrating hydrics model, calculating floodrange and simulating flood scence, Planning to adopt WebGIS, Virtual GIS, to unite SQL Sever, VC++, OpenGL specialized computer techinc and discussing plan thought of flood information system with function of query, display and simulation. Besides, taking middle or lower reaches of Weihe plain as validate instance of prototype testing to introduce general design, key technic, database and function design in detail, In order to build up firm foundation on succeed running of system. Firstly, the main technic. structure of building flood information system has been ascertained in this dissertation, namely, GIS , database and hydrics model of three important aspects. Secondly, the theory, techniques and flood analyzed application about system building has been discussed respectively. This will make deep and positive influence on developing the theory of flood information system research. Finally, the above mentioned theory and techniques were used to establish flood simulated system of Weihe, which will make irrigation works flood prevention system perfecter and provide science foundation to flood prevention department to institute scientific, effective and roboticized decision on preventing or rescuing disaster.