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2005 ESRI International User Conference July 28, 2005. Session: GIS in Disaster Management Internet-based Spatial Decision Support System (SDSS) with Real-Time Wireless Mobile GIS by Dr. Ming-Hsiang (Ming) Tsou E-mail: [email protected] Phone: 619-594-0205 Fax: 619-594-4938 The Department of Geography, San Diego State University Why Internet Mapping? 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 Bureau, etc.) Real-time Information Update and Distribution Gather data from client sides (polices, firefighters), distribute updated data from server sides (control centers) San Diego State University Web-based GIS (Internet GIS) Client (Web browser) + Java applets Internet Map Server Web Server (map.sdsu.edu Internet (ArcIMS) Client (Web browser) + IMS Viewer Client (Web browser) Server Client Regional Database (GIS) The Network is the Computer The Internet is your GIS. Sharing Data, Information, and Knowledge Real Time GIS for Emergency Response (NASA funded REASoN Project, 2004-2008) Http://geoinfo.sdsu.edu/reason REASoN Project San Diego Emergency Response GIS Data Portal http://geoinfo.sdsu.edu/metadataexplorer Metadata Search Web Mapping Downloadable Data Metadata/ Data Portal Metadata is the key to effectively search/query GIS data across the Internet Mobile GIS • Mobile GIS refers to an integrated software/hardware framework for the access of geospatial data and services through mobile devices via wireline or wireless networks (Tsou, 2004). (Notebooks, PDA, Tablet PC, Pocket PC, etc.) WHY mobile GIS – Field work: data collection and validation process, coupled with GPS and wireless communications. – Real-time update / change – Global Positioning System (GPS) integration. Mobile GIS Architecture Global Positioning Systems Wireless Local Area Network (WLAN) Wi-Fi or WiMAX Technology Different from cellular phone communication (CDMA, GPRS) Fast Transmission Speed, Good for GIS applications (large size of data/images) • Wi-Fi (802.11b, 11Mbps, 2.4 Ghz), Wi-Fi5 (802.11a, 54Mbps, 5GHz). 802.11g, and 802.11n (up to 200Mbps) -- MIMO (multiple input multiple output). Short distance: 300 feet. • WiMAX (available in late 2006) 802.16d, 802.16e (Wireless Metropolitan Area Network (WMAN). 30 – 75 Mbps, 4 – 6 miles Wireless Mobile GIS Integration Prototype Testing (2003 at MTRP) (Notebook Web Server (IIS) + ArcPAD + Blue tooth GPS + Wi-Fi ) User Scenario: Environmental Monitoring and Management Mission Trail Regional Park (short movie) Movies shot before the 2003 Wildfire. After the Wildfire, another test was conducted by helping park rangers to evaluate the damages of wildfire and landform changes. (Link to the movie MTRP.wmv) Real-time report submission and data upload (from Pocket PC to Server) Evaluate Land Cover Change by ADAR Images via Internet Map Server (MTRP BMX site) Real-time Data Update from Pocket PC (ArcPAD) to Internet Map Server (ArcIMS) Wireless Communication Submit new polygons (Hot-zones) from Pocket PC to Internet Map Server (ArcIMS) via Wi-Fi channel. Mobile GIS with Real-time Tracking Server ESRI ArcIMS Tracking Server (beta-version) Dynamically Display the location of in-field agents (park rangers, fire fighters, etc.) -- Two way communications Watershed Management (City of San Diego) , 3 years Http://www.sdbay.sdsu.edu San Diego High Tech High School -- biology course Barnacle (Boat Channel Study: HTH Biotech Website) Student Field Work (Boat Channel Study: HTH Biotech Website) Flatworm (Boat Channel Study: HTH Biotech Website) Student Field Work Channel Study: HTH Biotech Website) File(Boat Limpet (Boat Channel Study: HTH Biotech Website) ◊ San Diego Bay Biological Survey ◊ Study ◊ Diversity at Different Sites ◊ Affect of Human Activity ◊ Affect of Tidal Flow ◊ Appreciation ◊ Scientific Field Work/InquiryBased Learning San Diego State University Challenges • Interoperability across the Mobile GIS and Internet GIS interface. (vendor-based vs. open source development). • Cope with technology changes (Web technology changes every month). How to migrate from old technologies to new tools? • Security Issue (Data, wireless, Internet) and • Daily practice to ensure the usability. Future Direction? (Google-earth? NASA World Wind… GeoFusion?) 3D visual tools with GPS tracking services Web services? Semantic Webs? Grid computing? Intelligent Agents? Related Links and References Thank You • • • • Http://map.sdsu.edu Http://map.sdsu.edu/mobilegis Http://www.sdbay.sdsu.edu Http://geoinfo.sdsu.edu/reason Q&A Books & Papers (PDF available upon request) Internet GIS (book) – (Chapter 9. mobile GIS) http://map.sdsu.edu/gisbook Tsou, M.H. (2004). Integrated Mobile GIS and Wireless Internet Map Servers for Environmental Monitoring and Management, Cartography and Geographic Information Science. 31(3), pp. 153-165. Tsou, M.H. (2004). Integrating Web-based GIS and On-line Remote Sensing Facilities for Environmental Monitoring and Management. The Journal of Geographical Systems, No. 6: 1-20.