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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

University of Notre Dame

Center for Research Computing

January 29th, 2009


Overview l.jpg
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


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Instructor Introductions

Center for Research Computing

  • Ed Bensman: [email protected]

    • Office hours:  Monday 1:30-2:30p.m. 

    • Room 122 ITC

    • Phone: 631-2397

  • Dilkushi Pitts: [email protected]

    • Office hours: Wednesday 2:30pm – 4:30pm   

    • Room 111A ITC

    • Phone: 631-1671


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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?


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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)


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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)


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Lab Setup

Center for Research Computing

Follow the instructions on the sheet provided

Raise your hand if you need assistance


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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


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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


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Lecture 1

Center for Research Computing

  • What is GIS?

  • Basic GIS Functions:

    • Capturing

    • Storing

    • Querying

    • Analysis

    • Display

    • Output

  • Project Discussion – Data Needs


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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 )


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3 Views of GIS Data

Source: http://www.esri.com

Center for Research Computing

Database

View

Map View

Model View


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Basic GIS Functions

Center for Research Computing

  • Capturing

    • Maps

    • Coordinates

    • Digital Data

    • GPS

    • Sensor Network Data


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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


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Retail stores

Land uses

Streets

Points

Areas/Polygons

Lines

Vector Examples

Source: http://www.esri.com

Center for Research Computing


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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


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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


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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…


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Basic GIS Functions

Center for Research Computing

Display


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Basic GIS Functions

Center for Research Computing

Output


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GIS Layers

Center for Research Computing

GIS works on the concept of layers


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3 Components of GIS

Attributes

Behavior

Geometry

Streets and highways may not intersect

Source: http://www.esri.com

Center for Research Computing


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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


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ArcGIS Family of Tools

Center for Research Computing

ArcView

ArcEditor

ArcInfo

Each tool listed above has increasing functionality down the list


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ArcToolbox

Center for Research Computing

Numerous features new in ArcGIS 9.3


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Questions?

Center for Research Computing

Next we’ll go into the lab section of this class


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