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Geospatial Information System (GIS) Lecture 1

Geospatial Information System (GIS) Lecture 1. University of Notre Dame Center for Research Computing January 29 th , 2009. Overview. Introductions Office Hours and Help Outside of Class Course Outline & Objectives Lab Setup Accessing ArcGIS (in this lab or on your laptop) Lecture 1.

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Geospatial Information System (GIS) Lecture 1

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  1. Geospatial Information System (GIS)Lecture 1 University of Notre Dame Center for Research Computing January 29th, 2009

  2. Overview • Introductions • Office Hours and Help Outside of Class • Course Outline & Objectives • Lab Setup • Accessing ArcGIS (in this lab or on your laptop) • Lecture 1 Center for Research Computing

  3. Instructor Introductions Center for Research Computing • Ed Bensman: ebensman@nd.edu • Office hours:  Monday 1:30-2:30p.m.  • Room 122 ITC • Phone: 631-2397 • Dilkushi Pitts: dpitts@nd.edu • Office hours: Wednesday 2:30pm – 4:30pm    • Room 111A ITC • Phone: 631-1671

  4. Class Introductions Center for Research Computing • Introduce yourself • Faculty, Student or Staff? • Where do you work or what program are you in? • What is your interest in GIS?

  5. Course Outline Center for Research Computing Lecture 1 – Course Overview and GIS Basics Lecture 2 – Creating maps & features Lecture 3 – Projections & Data Transforms Lecture 4 – Attribute Tables Lecture 5 – Spatial Data Lecture 6 – Remotely Sensed Data Lecture 7 – Creating Graphs, Maps, Documents Spring Presentations (date/time/location TBD)

  6. Course Objectives Center for Research Computing • Combine theory and practical assignments • Plan & undertake a GIS project • Learn ESRI ArcGIS software • GIS is a growth sector in the U.S. economy • Intro to GIS, map projections, data integration, types of spatial data and the tools, technology, and utilities available to work with spatial data • Provide a venue to present your work (optional)

  7. Lab Setup Center for Research Computing Follow the instructions on the sheet provided Raise your hand if you need assistance

  8. Accessing ArcGIS Center for Research Computing • In the lab, click on: Start  All Programs  ArcGIS • ….then one of the ArcGIS programs: • ArcCatalog • ArcGlobe • ArcMap • ArcReader • ArcScene

  9. Accessing ArcGIS Center for Research Computing You can also access ArcGIS from your laptop, desktop PC or workstation; after downloading the software See Ed Bensman during break or after class for details on how to download and install on a University owned computer Brief demo of how this works

  10. Lecture 1 Center for Research Computing • What is GIS? • Basic GIS Functions: • Capturing • Storing • Querying • Analysis • Display • Output • Project Discussion – Data Needs

  11. What is GIS? Center for Research Computing Geographic (or Geospatial) Information System(s) -- GIS Integrates hardware, software, and data for capturing, managing, analyzing and displaying all forms of geographically referenced information (source: http://www.gis.com/whatisgis )

  12. 3 Views of GIS Data Source: http://www.esri.com Center for Research Computing Database View Map View Model View

  13. Basic GIS Functions Center for Research Computing • Capturing • Maps • Coordinates • Digital Data • GPS • Sensor Network Data

  14. Basic GIS Functions Center for Research Computing • Storing • Vector Data • Points - individual houses, stores, buildings (locations) • Lines – streets, networks, etc. • Polygons -- plots of land, neighborhoods, houses (zoomed in) • Raster Data • GIF, TIF, JPG • Other… • Map Scale determines shape & size of features

  15. Retail stores Land uses Streets Points Areas/Polygons Lines Vector Examples Source: http://www.esri.com Center for Research Computing

  16. Map Scale city Large scale Smaller area More detail 1:500 1:24000 city Small scale Larger area Less detail 1:24000 1:250000 Source: http://www.esri.com Center for Research Computing

  17. Basic GIS Functions Center for Research Computing • Querying • Identifying Specific Features on a Map • Roads • Bridges • Counties • Identifying Features based on Conditions • Counties with population > 300,000 people • Counties with an area of > ______ square miles

  18. Basic GIS Functions Center for Research Computing • Analysis • Proximity • Parcels of land within ____ feet of a road • Overlays • Building Type + Owner + Square Footage • Network • Roads • Utilities • Etc…

  19. Basic GIS Functions Center for Research Computing Display

  20. Basic GIS Functions Center for Research Computing Output

  21. GIS Layers Center for Research Computing GIS works on the concept of layers

  22. 3 Components of GIS Attributes Behavior Geometry Streets and highways may not intersect Source: http://www.esri.com Center for Research Computing

  23. Relationships of Various GIS Features Center for Research Computing Topology mathematically models connectivity, adjacency, and coincidence “Cities” belong to groups called “States” Highways connect City X to City Y

  24. ArcGIS Family of Tools Center for Research Computing ArcView ArcEditor ArcInfo Each tool listed above has increasing functionality down the list

  25. ArcToolbox Center for Research Computing Numerous features new in ArcGIS 9.3

  26. Questions? Center for Research Computing Next we’ll go into the lab section of this class

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