Research And Development Of Weather Modification Warning And Command System Based On WebGIS

For the artificial affect accurate early warning and command of Hanzhong areaweather operations, play CINRAD/CB Doppler weather radar and has built more thantwo hundred and sixty regional automatic weather stations efficiency, analysis of theHanzhong CINRAD/CB radar real time data and regional automatic weather stationdata, the results of figure, abstract the specific figure warning operation index,developed the artificial influence weather warning and command system based onWebGIS, and studied the application of using GSM Modem to send warning operationsshort information.The primary contents are as follows:1. The Hanzhong area real time data of automatic weather station were analyzed,focusing on analysis of the precipitation data, and the establishment of regionalautomatic weather station observation data, on the basis of the interpolation analysis,generate precipitation color map, design and development of the processing subsystemprecipitation of regional automatic weather station.2. Research on the CINRAD/CB Doppler weather radar data, will be based on datain polar coordinates generated must change to the Cartesian coordinates. And thecorresponding precipitation index: in precipitation weather system background, at thestage of development of the Cumulonimbus cloud, Cumulus congestus, between theecho top temperature at-5℃to-20℃, radar echo intensity greater than25DBZ; inless rainfall and drought period, radar echo top height at-5℃, at the stage ofdevelopment, appear virga or precipitation, but also on the large scale system cloud; hailindex: initial radar echo is generated in the5.0km (0to-5℃) around45DBZ height,echo top height is greater than or equal to7.0km, the top temperature below-14℃.Judgment and warning respectively in accordance with the conditions, system analysisdesign of Doppler weather radar data.3. Using GeoServer and PostgreSQL and OpenLayers to build an open sourceWebGIS platform, combining the reflectance map superposition of regional automaticweather stations rainfall color layout and Doppler radar display on this platform, andwill be suitable for region labeling for Operational Highlights, the commander canaccurately figure of figure command. Design and development of weather modification command display subsystem.4. Through the research of the GSM short message modem, analysis of GSMModem serial communication and At instruction and PDU format, as well asmulti-threading in Java and non blocking I/O research developed a short message server,realized only by a GSM Modem device quickly and accurately sent figure warning andcommand message. The development of short message automatically sent subsystemdesign.