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Title:

Geographic Information Systems

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a location and value. Satellite images and aerial photos are already ... Site Location, Delivery ... ATM Locator http://www.visa.com. Store Locator http: ... – PowerPoint PPT presentation

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Title: Geographic Information Systems


1
Geographic Information Systems GIS
  • Geography Matters

2
Think about Geography
  • What is Geography
  • The 3 Ws of Geography
  • What is where
  • Why is it there
  • Why do I care

3
Data - Data - Data We all got data
  • Location Data How Many What Kind Where
  • Scale of Data Local to Global
  • Data Presentation
  • Words, Charts, Graphs, Tables, or Maps
  • Exploring data using GIS turns data into
    information into knowledge

4
Geographic Information Systems A Definition of
GIS
  • GIS is a System of computer software, hardware
    and data, and personnel to help manipulate,
    analyze and present information that is tied to a
    spatial location
  • spatial location usually a geographic
    location
  • information visualization of analysis of
    data
  • system linking software, hardware, data
  • personnel a thinking explorer who is key to
    the power of GIS

5
What is Not GIS ?
  • GPS Global Positioning System
  • A static map paper or digital
  • Maps are often a product of a GIS
  • A way to visualize the analysis
  • A software package

6
Spatial Data
  • Estimates are that 80 of all data has a spatial
    component
  • Data from most sciences can be analyzed
    spatially

7
What is GIS ?
  • A method to visualize, manipulate, analyze, and
    display spatial data
  • Smart Maps linking a database to the map

8
Database Not Easy to Interpret
9
Visualization Worth a Thousand Words
10
Two Ways to Input and Visualize Data The World in
GIS
  • Raster Grid
  • pixels
  • a location and value
  • Satellite images and aerial photos are already in
    this format
  • Vector Linear
  • Points, lines polygons
  • Features (house, lake, etc.)
  • Attributes
  • size, type, length, etc.

Real world
11
Combining Data From Many Sources
12
Data For GIS Applications
  • Digitized and Scanned Maps
  • purchased, donated, free (Internet)
  • created by user
  • Data Bases Tables of data
  • GPS Global Positioning System
  • accurate locations
  • Field Sampling of Attributes
  • Remote Sensing Aerial Photography

13
Five Data Layers Alike Features
Capitals
Rivers
Roads
States
Lakes
14
Turning Data Into Information
Spatial Analysis not just a map
15
Asking A Question Interaction
16
Maps and Database are Interactive
17
Multiple Databases can be Linked and Related
18
Some Ways GIS is Used
  • Emergency Services Fire Police
  • Environmental Monitoring Modeling
  • Business Site Location, Delivery Systems
  • Industry Transportation, Communication,
    Mining, Pipelines, Healthcare
  • Government Local, State, Federal, Military
  • Education Research, Teaching Tool,
    Administration
  • Wherever Spatial Data Analysis is Needed

19
Network Solutions
20
Ecosystem Management
21
3D Mine with Well Data
22
Environmental Monitoring Toxic Plume
23
Combining Various Display Methods
24
Oil Spill and Contamination
25
Site Location and Client Distance
26
Modeling of Future Trends
27
Clusters and Comparison of Data
28
Loma Linda Hospital Facilities
29
GIS on the Internet
  • Olympics
  • http//citymap.cityofsydney.nsw.gov.au/
  • National Geographic Map Machine
  • http//www.nationalgeographic.com/maps.index.h
    tml
  • Find a Home http//www.realtor.com
  • ATM Locator http//www.visa.com
  • Store Locator http//www.godiva.com
  • GIS Info http//www.gis.com
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