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GIS Lecture 1 Introduction to GIS

GIS Lecture 1 Introduction to GIS. MAP SHEETS. Zoning, Poly. Streams, Line. Wells, Point. Roads, Line. Buildings. Poly. GIS Overview. What is GIS?.

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GIS Lecture 1 Introduction to GIS

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  1. GIS Lecture 1 Introduction to GIS MAP SHEETS Zoning, Poly Streams, Line Wells, Point Roads, Line Buildings. Poly

  2. GIS Overview

  3. What is GIS? GIS (Geographic Information System): computer information system that can input, store, manipulate, analyze, and display geographically referenced (spatial) data to support decision making processes.

  4. Tools for a GIS • Hardware • Computer • Printer / Plotter • Digitizer • Scanner • GIS Desktop Software • CAD Software • Multimedia • Photos, Video, 3D Models • World Wide Web • GIS Personnel

  5. GIS Data • Raster Images - grids • “pixels” • satellite images • aerial photos • Vector - grids • features: points, lines & polygons • attributes: size, type, length, etc.

  6. GIS Data Sources • Digitized and Scanned Maps • purchased, donated, free (Internet) • created by user • Data Bases – Tables of data • GPS (Global Positioning Systems) • Field Sampling of Attributes • Remote Sensing & Aerial Photography

  7. Conventional Information Systems • Answer the following questions: • Who ? • What ? • When ? • Why ? • How ?

  8. GIS answers the following • Location:What is at...? • Condition:Where is it? • Trends:What has changed since...? • Patterns:What spatial patterns exist? • Modeling:What if…? Exploring data using GIS turns data into information into knowledge

  9. Data Data Data • Location DataHow Many? – What Kind? – Where? • Scale of DataGlobal to Local • Data Presentation Words, Charts, Graphs, Tables, Maps, Photos

  10. Databases • Not easy to interpret

  11. Visualizing Data A picture is worth a thousand words

  12. “Layers” of GIS Information Municipalities

  13. “Layers” of GIS Information Census Tracts

  14. “Layers” of GIS Information Lakes and Rivers

  15. “Layers” of GIS Information Polluting Companies

  16. “Layers” of GIS Information Schools

  17. Maps and Databases are Interactive

  18. GIS Connects Graphics to Data

  19. Queries and Restrictions

  20. GIS Turns Data Into Information

  21. GIS Examples

  22. GIS Applications • Business Site Location, Delivery Systems, Marketing • GovernmentLocal, State, Federal, Military • Economic Development Population Studies, Incomes, Census and Demographic Studies • Emergency ServicesFire & Police • EnvironmentalMonitoring & Modeling • IndustryTransportation, Communication, Mining, Pipelines, Healthcare • Public HealthEpidemiology Studies • Urban PlanningLand Use, Historic studies, Environmental and Conservation Studies, Housing Studies, Crime Analysis • Politics Elections and Reappointment • EducationResearch, Teaching Tool, Administration Wherever Spatial Data Analysis is Needed

  23. GIS Examples • Instructor should add examples specific to their industry here.

  24. ESRI • To learn more, visit: • http://www.esri.com/industries.html

  25. GIS Tutorial

  26. Step by Step Instructions

  27. Step by Step Instructions

  28. GIS Tutorial Data

  29. Saving Homeworks

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