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GIS for Engineers ERE 551

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Source: National Center for Geographic Information (NCGIA) Technical paper: A ... National Conservation Training Center. ERE 551. Geographic Information ... – PowerPoint PPT presentation

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Title: GIS for Engineers ERE 551


1
GIS for Engineers ERE 551
  • Lindi Quackenbush

2
Course Overview
  • Introduction
  • GIS
  • Maps and map analysis
  • Spatial data
  • Characteristics and models
  • Coordinate systems and transformations
  • Data processing
  • Collection and preprocessing
  • Management
  • Spatial analysis and manipulation
  • Output
  • Data issues

3
Lecture Overview
Introduction to GIS
  • GIS Definitions
  • Understanding information
  • Overview of spatial data
  • GISs in problem solving

4
What is GIS?
5
GIS Definitions
Introduction to GIS
  • A computer system capable of assembling, storing,
    manipulating and displaying geographically
    referenced information i.e. data identified
    according to their locations

Source United States Geological Survey (USGS)
6
GIS Definitions
Introduction to GIS
  • A computer system designed to allow users to
    collect, manage and analyze large volumes of
    spatially referenced and associated attribute
    data

Source National Center for Geographic
Information (NCGIA) Technical paper A glossary
of GIS terminology
7
GIS Definitions
Introduction to GIS
  • A system of computer software, hardware and data,
    and personnel to help manipulate, analyze and
    present information that is tied to a spatial
    location

Source http//www.gis.com (ESRI)
8
GIS Definitions
Introduction to GIS
  • A versatile computer tool, assisting in
    conservation planning and decision making for a
    community, region or watershed

Source National Conservation Training Center
9
Geographic Information Systems (GISs)
Introduction to GIS
  • GIS
  • Considerations in a GIS
  • Note

10
GISs cont.
Introduction to GIS
  • Major software components

11
GIS - Information
Introduction to GIS
  • What is information?
  • Why do we need information?
  • Types and sources of information
  • Spatial vs. non-spatial information
  • Collecting information

12
Information
Introduction to GIS
  • What is it? Why do we need it?

Data Information Knowledge Understanding
13
Characteristics of Good Information
Introduction to GIS
  • Relevant
  • Accurate and reliable
  • Understandable and transferable
  • Expensive to collect
  • Provides power or advantage
  • Others?

14
Categorizing Information
Introduction to GIS
  • Type of information
  • Information source
  • Data properties

15
Types of Environmental Information
Introduction to GIS
  • Ecosphere

16
Types of Environmental Information cont.
Introduction to GIS
  • Sociosphere

17
Sources of Information
Introduction to GIS
  • Primary acquisition
  • Secondary acquisition

18
Data Properties Geographic Nature
Introduction to GIS
  • Spatial information
  • Non-spatial information

19
Geographic Nature cont.
Introduction to GIS
  • Characteristics of spatial information
  • Issue
  • Spatial data has two components

20
GIS Data
Introduction to GIS
Census Tracts Roads Bus Routes Shopping
Centers Industrial Sites
From The Geographer's Craft, Department of
Geography, University of Colorado at Boulder
21
GIS Applications
Introduction to GIS
  • The application of GIS is limited only by the
    imagination of those who use it Jack
    Dangermond, President ESRI
  • Potential application areas

22
GISs and Problem-Solving
Introduction to GIS
  • Stages in problem-solving
  • Where does GIS fit in?

23
Readings
Introduction to GIS
  • Chapter One Section 1.1 1.4
  • Chapter Two Section 2.2, 2.3
  • Chapter Three Section 3.1 3.3
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