1. Ming-Hsiang Tsou Email: mtsou@mail.sdsu.edu phone: 619-5940205 Fax: 619-5944938mtsou@mail.sdsu.edu Internet GIServices Department of Geography, San Diego State University Complex Sensor Network VisualizationCAL(IT)2 May. 14, 2002 Web-based Geospatial Information Services

2. Why Internet GIServices? Flexible Information Access / Exchange (End-Users only need a Web browser) Information Sharing and Integration (Access multiple Internet Map Servers at the same time– Local governments, USGS, EPA, Census, etc.) Real-time Information Update and Distribution Gather data from client sides (polices, firefighters), Distribute updated data from server sides (control centers)

3. Client users can access geospatial information without buying GIS software

4. Real-time Information Update and Distribution Gather data from client sides (police, firefighters), Distribute updated data from server sides (control centers)

5. Internet Map Server Three-Tie Architecture http://map.sdsu.edu Internet Map Server ArcIMS Web Server map.sdsu.edu Internet Client (Web browser) + Java applets Client (Web browser) + IMS Viewer Client (Web browser) Regional Database (GIS)

6. Key Technologies Internet Map Server (ESRI’s ArcIMS, AutoDesk’s MapGuide, INTEGRAPH’s GeoMedia Web Map, SmallWorld’s Internet Application Servers, etc.) Java Programming (cross-platform: Java applets and Java Servlets) XML (Extensible Markup Language) for metadata and communication with Internet Map Servers (ArcIMS – ArcXML).

7. NASA Project: http://map.sdsu.edu/archttp://map.sdsu.edu/arc

8. MTRP BMX (motor-crossing bicycling) Integrate GPS Data with ESRI ArcIMS

9. Image Overlay (Change Detection) Java-based Visualization Tools

10. Image Processing Image Filtering Image Viewing Image Comparison (Java applet) Image Swipe (Java applet)

11. Future Development Smart Mapping Software Intelligent Software Agents, (searching requested GIS data automatically) Real-time GIS functions and Modeling Hydrology modeling (flood control: ALERT systems), Wide fire modeling, Earth Quake simulations, etc. Mobile devices with wireless communication. GPS / Cellular Phone/ PDA Integration

12. Mobile GIServices and Pocket GIS