Starting the Hunt, GeoStor, ArcExplorer, the RGIS NWA Imagery Viewer: A Demonstration of Local Resou

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Starting the Hunt, GeoStor, ArcExplorer, the RGIS
NWA Imagery Viewer A Demonstration of Local
Resources and ServicesPresentation by
Stephan PollardGraduate Assistant, Government
Documents, Mullins LibraryUniversity of
ArkansasReference Training/Competency
SeriesAugust 2, 2005, Mullins Library, Rm 104
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Overview

• A) Intro to Data Requirements for a GIS
• Geospatial Data Defined
• Attribute Data Defined
• B) Intro to Starting the Hunt A guide to Mostly
  On-line and Mostly Free U.S. Geospatial and
  Attribute Data
• C) Intro to GeoStor and Assocd Tutorial
• D) Intro ArcExplorer and Assocd Tutorial
• E) Intro NWA Imagery Viewer

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• A) Intro to Data Requirements for a GIS
• Geospatial Data
• Has a locational component
• Often expressed in terms of Decimal Degrees
  or Degrees/Minutes/Seconds
• Types are either
• Vector Data
• Points, Lines, Polygons
• Raster/Image Data
• Pixels/Cells/Raster
• Attribute Data
• Alpha or numeric data associated with a
  geographic entity such as a county, zip code, or
  census block
• Can be added to geospatial data through entry in
  geospatial data database tables

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• B) Intro to Starting the Hunt A guide to Mostly
  On-line and Mostly Free U.S. Geospatial and
  Attribute Data
• Comprehensive but not exhaustive catalog of
  on-line mostly free U.S. geospatial (spatially
  linked) and attribute data
• Tallies hundreds of maps and Geographical
  Infomration Systems data sets held by federal,
  state and local agencies.
• Includes fields from public health to geology.
  Everything from park boundaries to digital
  elevation models to crime statistics to Superfund
  site details
• Examples include regional birth and death
  statistics for Alaska, changes in land cover
  along the shores of the Great Lakes between 1996
  and 2001, and a US EPA map of streams damaged or
  threatened by pollution in Washington State
• http//libinfo.uark.edu/GIS/us.asp

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• C) Intro to GeoStor and Associated Tutorial
• A digital data server containing hundreds of
  layers of exclusively Arkansas-coverage
  geospatial data freely downloadable in a variety
  of common user specified digital formats
• Included Themes
• Cadastral Natural Resources
• Geopolitical Physical Geography
• Hydrologic Reference
• Imagery Socioeconomic
• Infrastructure
• Stored data is both of vector and raster type
• Most of the data has very little or no attribute
  information associated with it
• Gov Docs has put together a very good on-line
  tutorial on how to use GeoStore. URLs to related
  web pages are listed below
• http//www.cast.uark.edu/cast/geostor/
  Link to GeoStor
• http//libinfo.uark.edu/gis/dvtutorial.asp
  Link to Tutorial

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• D) Intro to ArcExplorer and Associated Tutorial
• A freely available lightweight GIS data viewer
  capable of display, query, and data retrieval
  applications
• With ArcExplorer you can display and query a
  variety of data sources including but not limited
  to the following GeoStor formats
• ESRI Shapefiles used for features of either a
  point, line, or polygon nature
• GeoTIFF images a common image format used for
  aerial photography scans of topographic maps
  satellite imagery and related products radar
  imagery LIDAR (light detection and ranging) and
  other raster, cell, or pixel-based imagery
• Gov Docs has put together a very good on-line
  tutorial on how to use ArcExplorer. URLs to
  related web pages are listed below
• http//www.esri.com/software/arcexplorer/download.
  html Link to ArcExplorer
• http//libinfo.uark.edu/gis/dvtutorial.asp
  Link to Tutorial

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• E) Intro to Northwest Arkansas Imagery Viewer
• Provides access to high resolution aerial imagery
  (12 inch resolution, true-color) from a Spring
  2004 acquisition by the Arkansas Highway and
  Transportation Department.
• With the NWA Imagery Viewer you can display the
  above-mentioned aerial imagery along with a
  variety of map layers (listed immediately
  following), and submit a download request to
  GeoStor for the 2004 Aerial Photography.
• Included Layers
• Interstate Highways 1926 Fayetteville
  Photography
• US Highways 1941 Fayetteville Photography
• State Highways 1966 Fayetteville Photography
• County Roads 1999 Land Cover
• Street Labels LIDARnorth
• Lakes/River Pools LIDARsouth
• Streams/Rivers NWA 2004 Photography
• City Boundaries 30m Shaded Relief
• Counties
• State Boundary
• Gov Docs has put together a very good hardcopy
  Quick Guide on the usage of the NWA Imagery
  Viewer. The URL to related web page is listed
  below.