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GIS TUTORIAL 1

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  1. GIS TUTORIAL 1 Lecture 1 Introduction to GIS

  2. Outline • GIS overview • GIS data and layers • GIS applications and examples • Software overview • GIS tutorial 1 overview GIS TUTORIAL 1 - Basic Workbook

  3. Lecture 1 GIS Overview

  4. What is GIS? • Geographic Information Systems (GIS) are computerized systems designed for the storage, retrieval and analysis of geographically referenced data • GIS uses advanced analytical tools to explore at a scientific level the spatial relationships, patterns, and processes of cultural, biological, demographic, economic, geographic, and physical phenomena Gotthat? GIS TUTORIAL 1 - Basic Workbook

  5. Tools for GIS • Hardware • Computer • Digitizer • Scanner • Printer/Plotter • Software • Desktop GIS • Internet GIS • CAD Software • Database Software • Multimedia (photos, videos, 3D models) GIS TUTORIAL 1 - Basic Workbook

  6. Unique capabilities of GIS • GIS stores related geographic features in separate collections of files called map layers • Map layers can be reused easily and assembled into any number of map compositions and overlaid for analysis GIS TUTORIAL 1 - Basic Workbook

  7. GIS answers the following • Location:What is at...? Where is it? • Condition: Status of features? • Trends: What has changed since...? • Patterns:What spatial patterns exist? • Modeling:What if…? GIS TUTORIAL 1 - Basic Workbook

  8. Scale of GIS data • Global to local GIS TUTORIAL 1 - Basic Workbook

  9. Vector data • Map features • Points, lines, polygons • Feature attributes • Every feature has attributes (e.g. name, area, population) GIS TUTORIAL 1 - Basic Workbook

  10. Raster Data Stored electronic image or picture taken as an aerial photograph or satellite image Composed of a rectangular array of square cells, called pixels, with a number in each cell representing the solid color fill of that cell GIS TUTORIAL 1 - Basic Workbook

  11. Lecture 1 GIS Data and layers

  12. GIS example • Identify polluting companies and their proximity to populations in poverty, water features, or schools. • Start with • Databases • Map layers GIS TUTORIAL 1 - Basic Workbook

  13. Databases Not easy to interpret GIS TUTORIAL 1 - Basic Workbook

  14. Data shown as GIS layers GIS TUTORIAL 1 - Basic Workbook

  15. Additional layers Political features (municipalities) GIS TUTORIAL 1 - Basic Workbook

  16. Additional layers Physical features (lakes, rivers, etc.) GIS TUTORIAL 1 - Basic Workbook

  17. Additional layers Administrative data (schools) GIS TUTORIAL 1 - Basic Workbook

  18. Maps and tables are interactive Identify features GIS TUTORIAL 1 - Basic Workbook

  19. Maps and tables are interactive Select features GIS TUTORIAL 1 - Basic Workbook

  20. Advanced GIS functions Proximity selections GIS TUTORIAL 1 - Basic Workbook

  21. Advanced GIS functions • Buffers • Select top polluting companies and show the number of schools within 2 miles of these companies. GIS TUTORIAL 1 - Basic Workbook

  22. Lecture 1 GIS applications and examples

  23. GIS applications GIS TUTORIAL 1 - Basic Workbook

  24. GIS examples • Instructor should add examples specific to their industry or teaching here • What an excellent idea. I think I have just a few examples here… GIS TUTORIAL 1 - Basic Workbook

  25. Analysis

  26. What Should Be Anticipated for a Katrina-Magnitude Disaster?

  27. Size of New Homes in Redondo Beach

  28. Responding to Citizen Requests in Torrance—Using GIS to Focus Field Investigations City of Torrance

  29. School Facility Needs Analysis

  30. Zoning and Property Information

  31. Adult Business Ordinance • Determine allowed parcels • Identify impacted neighbors • Ensure defensibility of ordinance

  32. Fire Station Siting

  33. Operations & Special Event Planning • Hometown Fair & 10K • Arts Festival • Grand Prix • Robinson Fun Run • Grandview Gator 5K • Earth Day • Fireworks Festival

  34. City of Lomita Response to Los Angeles Co. Office of Emergency Mgmt. Information Request

  35. Water Systems

  36. Tabular Data

  37. Compared to a picture

  38. Traffic Accident Analysis

  39. Transportation • Route planning • Route locater • Identification of funding

  40. Economic Development • Sales tax provides 40% of the city’s revenue • Licenses and permits make up another 11% • Other revenue sources are eroding • Good jobs make for a stable community • Retaining existing businesses saves jobs • New businesses and development can replace blight • Economic development is proactive

  41. How can GIS help? • Better visualization and analysis of current and future conditions • Aggregate a variety of geographic features and demographics • Notify residents and businesses of activities and opportunities • Avoid shotgun approach • Better redevelopment planning • Make development easier • Reduce duplication of data • Provide site selections • Create marketing opportunities • Speed your decision making • Get a competitive edge TM

  42. Tabular Data

  43. Maps • Use maps to enhance text based marketing • Use vicinity maps to contrast with other communities • Demonstrate the uniquestrengths of yourcommunity • Show target areas

  44. More Maps • Redevelopment project areas • Special design areas • Demographics • Anticipated or desired development • Local attractions (i.e., universities, airports) • Current projects • Traffic volumes