NCSU Libraries County and City Data

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NCSU Libraries County and City Data
Directory Everything Youve Always Wanted to
Know Jeff Essic Matt Sumner NCSU Libraries
http//www.lib.ncsu.edu/gis
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County GIS Links
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County GIS Links
Link to Municipal Directory
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Popularity Consistently within

• Top 5 of Libraries Entry pages
• Top 10 of Libraries pageviews

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History

• Started August 2000 by Steve Morris
• Steve knew of 8 maps services but found 7 more
  realized map servers were beginning to quickly
  emerge and the need to have a link page
• Pre-Google Links pages were more relied upon
• Dan Madding 2002 NC OneGIS

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Internet Archive 3/3/2001
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• City GIS Links
• Less Comprehensive
• Larger number of
• municipalities
• Fewer municipal
• services
• Most data is
• incorporated into
• county services

http//www.lib.ncsu.edu/gis/cities.html
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• Library Holdings
• php template
• External links
• Related City GIS
• Wikipedia
• Links to NCSU Geodata
• server
• All vector data
• Some raster data

http//lib.ncsu.edu/gis/counties/codata.php...
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• GIS Websites
• Preferably
• - Contact Info
• - Dept. organization
• - Links to
• Map Server
• Data Download or
• other acquisition
• Related Depts.
• Map Gallery
• Disclaimers
• Metadata
• GIS help

http//www.co.union.nc.us/PropertyServices/GISMaps
/tabid/82/Default.aspx
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• Map Servers
• Link directly to
• Disclaimer statement
• when possible

http//imaps.co.wake.nc.us/imaps/main.htm...
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Downloads
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• NC OneMap
• Orthophotos
• Links directly to NC
• OneMap Orthophoto
• download section

http//www.nconemap.net/datacatalog
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• .ims Files
• Provided by Dan
• Madding, NCDA
• Allow connection of
• ArcMap to ArcIMS
• servers
• 3 known WFS Services in
• NC Henderson Co,
• Sampson Co, Town of
• Highlands (Macon Co)
• Others?

Save .ims file to C\Documents and
Settings\USERNAME\Application Data\ESRI\ArcCatalog

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WMS Links

• WMS Links
• Maintained by
• NC OneMap
• Both .ims and WMS
• services are useful for
• Counties that dont
• provide data
• downloads
• Potential web-based
• applications

http//www.nconemap.net/datacatalog
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• Maintenance
• Originally
• Static
• HTML
• Now
• Dynamic
• php/MySQL
• Persistent ID table
• Advantages
• Fast
• Status Maps
• Fool-proof HTML

http//www.lib.ncsu.edu/gis/counties.html
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phpMyAdmin
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• Persistent Ids
• Purpose
• One update
• multiple uses
• Clicks get recorded
• in logs
• Structure
• Resolver script
• Query parameter
• using FIPS code

http//www.lib.ncsu.edu/cgi-bin/getloc.pl?locG370
01ws
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Persistent Ids Usage by Others
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• Link Maintenance
• Average approx. 15 min. per week
• Check links approx. twice / yr
• students interns
• Heavily depend on new/broken link reports from
  users

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• GIS Lookup
• Searches containing an NC County name returns a
  link to the
• Library Holdings page

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• Google Search
• Usually
• County GIS Links
• 1st or 2nd hit
• Library Holdings
• 2nd or 3rd hit

http//www.google.com
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NC Counties with GIS Map Server
93 / 100 5 Sep. 2008
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NC Counties with GIS Download
50 / 100 5 Sep. 2008
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NC Counties with WMS
58 / 100 5 Sep. 2008
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• County Mapping and Data Services in NC
• 100 Counties in NC

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Counties.html Filtered Page Hits by FY
Anomaly due to spider filtering problems.
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Comparison of Online County GIS Services Ten
Counties that had all services during FY 07-08
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Map Server Link Clicks FY 07-08
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Map Server Link Clicks FY 07-08
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Map Server Top 20 Links
Catawba Henderson Wake Iredell Lincoln Wilkes Sampson Swain Cabarrus Haywood 2976 2910 2880 2509 2505 2193 1936 1905 1896 1847 Mecklenburg Cleveland Guilford Buncombe Robeson Gaston Rowan Caldwell Johnston Forsyth 1806 1699 1686 1675 1674 1627 1545 1515 1507 1506
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Map Server Top 21 NCSU Links
Wake Brunswick Catawba Beaufort Alamance Mecklenburg Johnston Alexander Carteret Bladen 51 37 32 31 28 28 26 25 25 23 Granville Durham Camden Chatham Franklin Ashe Dare Haywood Hoke Warren Watauga 23 21 20 19 19 18 18 17 17 17 17
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Clicks by County to Library Holdings Pages
NCSU Only Clicks
NCSU non-NCSU 113.5
All Clicks
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Clicks by County to GIS Contact/Info Pages
NCSU Only Clicks
NCSU non-NCSU 157.1
All Clicks
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Clicks by County on Map Server Links
NCSU Only Clicks
NCSU non-NCSU 151.8
All Clicks
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Clicks by County on Public Download Links
NCSU Only Clicks
NCSU non-NCSU 113
All Clicks
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Clicks by County on .ims files
NCSU Only Clicks
NCSU non-NCSU 18.8
All Clicks
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Clicks by County on WMS links
NCSU Only Clicks
NCSU non-NCSU 12.5
All Clicks
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• NCGDAP (NDIIPP)
• NCSU Libraries
• NCCGIA
• Library of Congress
• Objective
• Engage existing
• state/federal SDI
• in preservation
• Dspace depository
• No remote access
• Focus on archiving
• annual snapshots

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• Roanoke
• Network data access
• Mapped from
• PC and Mac
• Campus ID/pass
• Vector data archive
• Most orthos stored on CD
• Collection spans 8
• years

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• Future Desires
• Add local govt.
• GIS data records into
• the main library catalog
• Be able to extract
• Contact and Framework
• info from RAMONA

http//www.lib.ncsu.edu/catalog http//www.nc.gisi
nventory.net
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Feedback - Missing/Broken Links? -
Suggestions for improvement? - Questions?
Jeff Essic jeff_essic_at_ncsu.edu
Matt Sumner matt_sumner_at_ncsu.edu