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Data Visualization with GIS
Kate Dougherty, University of Arkansas
Internet Librarian International
October 16, 2013
What is GIS?
• Geographic Information Systems (GIS) is a
computer-based method for collecting,
managing, analyzing, modeling, and
presenting geographic or spatial data.
• Can overlay maps and datasets and query
them in terms of their spatial relationships to
each other.
Vector Data
Individual features:
– Points for cities
– Roads
– Boundaries

Raster Data
Continuous or gridded data:
– Air photos
– Satellite imagery
– Scanned maps
What is GIS Used For?
•
•
•
•
•

Identifying conservation areas
Vehicle routing
Siting new facilities
Market and demographic research
Much more!
Where does the data come from?
• Federal
– Geo.data.gov
– Many countries have a
central GIS portal

• State GIS portals
• Local (counties/cities)
– Quality & availability of
local portals vary widely

• Educational institutions
• Non-profits

• Commercial sources
Types of GIS Software
“GIS Lite”

Professional

• Focus on display:

• Focus on analysis:

–
–
–
–

Google Earth
Google Maps
BatchGeo
Many others

–
–
–
–

Esri’s ArcGIS/ArcMap
Quantum GIS
GRASS
Others
Quantum GIS (QGIS)
• Open source professional-level software
– From the Open Source Geospatial Foundation

http://www.qgis.org/
Click to add data

Table of
contents that
shows &
organizes the
project’s
layers.

The “data frame” that displays the spatial data.
“Lightweight” Applications
• GeoCommons.com
• Google Maps/Google
Fusion Tables
• BatchGeo.com

• Simply Map
(subscription)
• Policy Map
(subscription)
GeoCommons.com
• Platform for sharing and • Upload & map data
(files up to 20 MB)
visualization of data
through maps
• Analyze data
• Open source
• Use or combine with
others’ data to create
• Cloud-based
new maps
Description
for field

Check to get
summary
statistics
Summary statistics
for fields where
we checked
“Categorize”.
Analysis
Sample “GIS Lite” Projects for
Libraries
http://www.visualcomplexity.com/vc/project_details.cfm?id=747&index=747&domain=#.Ua0SofwoZIY.twitter
Thank You!
Kate Dougherty
Geosciences and Maps Librarian
University of Arkansas
kdough03@gmail.com
Twitter: @kate_dougherty

Background: Geologic Map of County Clare, http://frackingfreeireland.org/info-to-download/maps/

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Visualizing Data with Geographic Information Systems (GIS)

  • 1. Data Visualization with GIS Kate Dougherty, University of Arkansas Internet Librarian International October 16, 2013
  • 2. What is GIS? • Geographic Information Systems (GIS) is a computer-based method for collecting, managing, analyzing, modeling, and presenting geographic or spatial data. • Can overlay maps and datasets and query them in terms of their spatial relationships to each other.
  • 3. Vector Data Individual features: – Points for cities – Roads – Boundaries Raster Data Continuous or gridded data: – Air photos – Satellite imagery – Scanned maps
  • 4. What is GIS Used For? • • • • • Identifying conservation areas Vehicle routing Siting new facilities Market and demographic research Much more!
  • 5. Where does the data come from? • Federal – Geo.data.gov – Many countries have a central GIS portal • State GIS portals • Local (counties/cities) – Quality & availability of local portals vary widely • Educational institutions • Non-profits • Commercial sources
  • 6. Types of GIS Software “GIS Lite” Professional • Focus on display: • Focus on analysis: – – – – Google Earth Google Maps BatchGeo Many others – – – – Esri’s ArcGIS/ArcMap Quantum GIS GRASS Others
  • 7. Quantum GIS (QGIS) • Open source professional-level software – From the Open Source Geospatial Foundation http://www.qgis.org/
  • 8. Click to add data Table of contents that shows & organizes the project’s layers. The “data frame” that displays the spatial data.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19. “Lightweight” Applications • GeoCommons.com • Google Maps/Google Fusion Tables • BatchGeo.com • Simply Map (subscription) • Policy Map (subscription)
  • 20. GeoCommons.com • Platform for sharing and • Upload & map data (files up to 20 MB) visualization of data through maps • Analyze data • Open source • Use or combine with others’ data to create • Cloud-based new maps
  • 21.
  • 22.
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  • 29. Description for field Check to get summary statistics
  • 30.
  • 31. Summary statistics for fields where we checked “Categorize”.
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  • 38.
  • 39. Sample “GIS Lite” Projects for Libraries
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  • 43. Thank You! Kate Dougherty Geosciences and Maps Librarian University of Arkansas kdough03@gmail.com Twitter: @kate_dougherty Background: Geologic Map of County Clare, http://frackingfreeireland.org/info-to-download/maps/