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Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
Gis
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Gis
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Gis
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Gis

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  • 1. Geographic Information Systems “GIS ” “ Geography Matters”
  • 2. Think about “Geography” <ul><li>What is Geography </li></ul><ul><ul><li>The 3 “ W’s ” of Geography </li></ul></ul><ul><ul><ul><li>What is where </li></ul></ul></ul><ul><ul><ul><li>Why is it there </li></ul></ul></ul><ul><ul><ul><li>Why do I care </li></ul></ul></ul>
  • 3. Data - Data - Data We all ‘got data’ <ul><li>Location Data – How Many – What Kind – Where </li></ul><ul><li>Scale of Data – Local to Global </li></ul><ul><li>Data Presentation </li></ul><ul><li> – Words, Charts, Graphs, Tables, or Maps </li></ul><ul><li>Exploring data using GIS turns data into information into knowledge </li></ul>
  • 4. <ul><li>GIS is a System of computer software, hardware and data, and personnel to help manipulate, analyze and present information that is tied to a spatial location – </li></ul><ul><ul><li>spatial location – usually a geographic location </li></ul></ul><ul><ul><li>information – visualization of analysis of data </li></ul></ul><ul><ul><li>system – linking software, hardware, data </li></ul></ul><ul><ul><li>personnel – a thinking explorer who is key to the power of GIS </li></ul></ul>Geographic Information Systems A Definition of GIS
  • 5. What is Not GIS ? <ul><li>GPS – Global Positioning System </li></ul><ul><li>A static map – paper or digital </li></ul><ul><ul><li>Maps are often a “product” of a GIS </li></ul></ul><ul><ul><li>A way to visualize the analysis </li></ul></ul><ul><li>A software package </li></ul>
  • 6. Spatial Data <ul><li>Estimates are that 80% of all data has a spatial component </li></ul><ul><ul><li>Data from most sciences can be analyzed “spatially” </li></ul></ul>
  • 7. What is GIS ? <ul><li>A method to visualize, manipulate, analyze, and display spatial data </li></ul><ul><li>“ Smart Maps” linking a database to the map </li></ul>
  • 8. Database “ Not Easy to Interpret”
  • 9. Visualization “Worth a Thousand Words”
  • 10. Two Ways to Input and Visualize Data The World in GIS <ul><li>Raster – Grid </li></ul><ul><ul><li>“ pixels” </li></ul></ul><ul><ul><li>a location and value </li></ul></ul><ul><ul><li>Satellite images and aerial photos are already in this format </li></ul></ul><ul><li>Vector – Linear </li></ul><ul><ul><li>Points, lines & polygons </li></ul></ul><ul><ul><li>“ Features” (house, lake, etc.) </li></ul></ul><ul><ul><ul><li>Attributes </li></ul></ul></ul><ul><ul><ul><ul><li>size, type, length, etc. </li></ul></ul></ul></ul>Real world
  • 11. Combining Data From Many Sources
  • 12. Data For GIS Applications <ul><li>Digitized and Scanned Maps </li></ul><ul><ul><li>purchased, donated, free (Internet) </li></ul></ul><ul><ul><li>created by user </li></ul></ul><ul><li>Data Bases – Tables of data </li></ul><ul><li>GPS – Global Positioning System </li></ul><ul><ul><li>accurate locations </li></ul></ul><ul><li>Field Sampling of Attributes </li></ul><ul><li>Remote Sensing & Aerial Photography </li></ul>
  • 13. States Five Data Layers “Alike” Features Roads Capitals Rivers Lakes
  • 14. “ Spatial Analysis” – not just a map Turning Data Into Information
  • 15. Asking A Question – Interaction
  • 16. Maps and Database are “Interactive”
  • 17. Multiple Databases can be Linked and Related
  • 18. Some Ways GIS is Used <ul><li>Emergency Services – Fire & Police </li></ul><ul><li>Environmental – Monitoring & Modeling </li></ul><ul><li>Business – Site Location, Delivery Systems </li></ul><ul><li>Industry – Transportation, Communication, Mining, Pipelines, Healthcare </li></ul><ul><li>Government – Local, State, Federal, Military </li></ul><ul><li>Education – Research, Teaching Tool, Administration </li></ul><ul><li>Wherever Spatial Data Analysis is Needed </li></ul>
  • 19. Network Solutions
  • 20. Ecosystem Management
  • 21. 3D Mine with Well Data
  • 22. Environmental Monitoring Toxic Plume
  • 23. Combining Various Display Methods
  • 24. Oil Spill and Contamination
  • 25. Site Location and Client Distance
  • 26. Modeling of Future Trends
  • 27. Clusters and Comparison of Data
  • 28. Loma Linda Hospital Facilities
  • 29. GIS on the Internet <ul><li>Olympics </li></ul><ul><li> — http://citymap.cityofsydney.nsw.gov.au/ </li></ul><ul><li>National Geographic Map Machine </li></ul><ul><li> — http://www.nationalgeographic.com/maps.index.html </li></ul><ul><li>Find a Home — http://www.realtor.com </li></ul><ul><li>ATM Locator — http://www.visa.com </li></ul><ul><li>Store Locator — http://www.godiva.com </li></ul><ul><li>GIS Info — http://www.gis.com </li></ul>

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