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Developing a GIS Data Services Program IASSST 2002

Developing a GIS Data Services Program IASSST 2002. Steve Morris Head of Digital Library Initiatives NCSU Libraries. Workshop Overview. Introduction: What is GIS?; What Services? Data: Key Resources; Acquiring Data Data Access and Organization Documentation, Metadata, Data Discovery

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Developing a GIS Data Services Program IASSST 2002

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  1. Developing a GIS Data Services ProgramIASSST 2002 Steve Morris Head of Digital Library Initiatives NCSU Libraries

  2. Workshop Overview • Introduction: What is GIS?; What Services? • Data: Key Resources; Acquiring Data • Data Access and Organization • Documentation, Metadata, Data Discovery • Data Selection & Reference Interview • Workshops, Training & Support • Incorporating Web-based Mapping Services • Hardware and Software Issues • Marketing, Outreach, and Partnering • Preservation Issues & Digital Rescue • Planning Issues

  3. I. Overview of GIS

  4. What is GIS? • GIS = Geographic Information Systems • “A collection of hardware, software, data, and personnel designed to acquire, store, update, analyze, and display geographically- referenced information.”

  5. Geographic Information Systems

  6. Common GIS Applications • Natural Resources Management • Hazard Analysis • Urban and Regional Planning • Marketing • Site Analysis • Transportation Planning • Crime Mapping • Animal Tracking • Emergency Response • Tax Administration

  7. A Very Brief Overview of GIS Concepts

  8. A Formal Definition of GIS • Geographic Information System • A collection of hardware, software, data, and personnel designed to acquire, store, update, analyze, and display geographically- referenced information.

  9. Information Display

  10. Area and Distance Calculations Inset of Watershed StudyArea Distance Length

  11. Spatial Analyses • Selection/Query • Classification • Overlay • Buffer Zones • Network Models • etc.

  12. Classification (e.g. Soils)

  13. Overlay

  14. Integration • Data Types • Natural Sciences • Social Sciences • Mathematics • Cartography as Art

  15. GIS Service Components • Data Resources • Acquisition, Access, Web Applications • Discovery, Description, Metadata • User Assistance • Finding & Getting Data • Using Data (technical support) • Workshops, Training, Instruction • Workstations & Software • Marketing & Outreach

  16. Digital Mapping & GIS in Libraries • Digital Mapping Services • Assistance in Map Creation • Traditional: Workstation support • Advanced: Map Servers • Future: Map Portals • GIS Data Services • Access to Data (Data servers, CD-ROM collection) • Data Cataloging & Finding Aids • Assistance in Finding Data • Outreach/Marketing

  17. History: Geospatial Information Services Map Collections Data Collections Map Servers Map Portals • Map Collections • Paper Maps • Data Collections • CD-ROMs, File server & FTP access • Map Servers • Integrate collected data, Web-based mapping • Coming: Map Portals • Front end to distributed, streaming data (OpenGIS)

  18. II. Overview of NCSU Libraries GIS Services

  19. Background - GIS at NC State • Large Technical University (27,000+ Students) -Engineering, Natural Resources, Ag Focus • No Geography or City/Regional Planning Department • Over 35 Academic Departments Using GIS

  20. NCSU Libraries GIS Services • Service orientation: • Not A GIS Lab • Focus on providing services (data & support)to users across the network in their own environments (where all their other stuff is) • GIS data service rather than digital mapping service

  21. Time & Location Independent Access to GIS Resources Classes/ Training Classes/ Training Online Data Online Data Tech Support Tech Support Software Licenses Software Licenses

  22. Data Services Functions • Collection Management/Acquisitions • Acquiring (incl. virtually) free or fee-based data • Cataloging • Web documentation, Metadata • Public Services • Reference, Tech support, Instruction • IT Functions • Server management, Web mapping, Application development • Outreach • Grants, collaborative efforts, campus infrastructure

  23. Reference Assistance • Reference Modes • Email, phone, in person, on site • Unmediated Web-based • Request types • Finding/selecting data • Data access assistance • Technical support • Data upload request • Finding documentation • Software inquiries • Training inquiries

  24. Libraries GIS Workstations DH Hill Library 2 PC workstations Natural Resources Library PC and UNIX workstations

  25. NCSU: Data Acquisition • $20,000/year data acquisition budget • Partnerships for free access to government data (state/regional/local) • Partnerships with academic units on acquisition/processing • Extensively documenting Web-based data, capturing as needed • University Extension Grant to acquire local government geodata

  26. Libraries GIS Data Servers Mapped Drive Netware Server FTP Data Access HTTP Windows 2000 Server HTTP Web Mapping

  27. High Use Departments at NCSU • Forestry (CNR) • Parks, Recreation & Tourism Mgmt. (CNR) • Soils (CALS) • Civil Engineering (COE) • Marine, Earth & Atmospheric Sciences (PAMS) • Landscape Architecture (Design) • Education (CEP) • Public Administration (CHASS) • Biological & Ag. Engineering (CALS/COE)

  28. VC Registrations by College: 2000-2001

  29. User Types (based on approx. volume) • Graduate Students • General Public • Research and Support Staff • Faculty • Undergraduate Students • State & Local Government • Campus Facilities Staff

  30. What Do Users Want? • Data Access • Pointers to Data • Data Access Support • Assistance in Processing Data • Access to Support Materials (Documentation, Tutorials, Tools, Metadata, Lookup Tables, Legend Files) • Information about Training Opportunities • Information about Software Access

  31. Where Do Users Do GIS? • Departmental Labs • Unity Labs • Home (using Virtual Campus Edition of ArcView or ArcGIS Trial Version) • Work • Libraries Workstations

  32. What Software Do People Use? • ESRI Campus License (administrated by Center for Earth Observation [CNR]) • ArcView, ArcInfo, ArcGIS (next generation ArcView & ArcInfo), various software extensions • Installed in Unity labs and various departmental labs; may be installed on any NCSU computer • Erdas Imagine • Image processing (remote sensing data) • Limited campus license: Center for Earth Observation, Soils, Libraries • Miscellaneous Other

  33. III. GIS Data Resources

  34. Data Sources • State Government • NCDOT, DENR, other • Federal Government • USGS, NOAA, USDA, Census, other • Local Governments • Counties, Cities, COG’s, MPO’s • International Organizations • UN, other • Campus Partners • Research Labs, Departments • Commercial Firms

  35. State Government Data From the State GIS Agency (Center for Geographic Information & Analysis) Over 100 different data resources or “layers” (e.g. watersheds) Free to NCSU affiliates by agreement Made available for campus-wide access on the Libraries data server

  36. State Government GIS Database Soils River Basins Roads Railroads Pipelines Geology Hydrography

  37. Local Government Data Acquired from counties, cities, councils of government, metropolitan planning organizations Infrastructure, cultural and environmental data Rapidly changing, current data Very detailed (large scale) and accurate Long-term preservation needs

  38. Local Government Data Parking Elevation Footprints Streets Parks

  39. Integrating Spatial & Tabular Data

  40. NCSU GIS Collection Development Priority

  41. Collection Development: Scale Issues

  42. Commonly Used/Requested Data Layers Digital Orthophotos Land Cover Roads Hydrography Census Counts/Boundaries Elevation Digital Topo Maps Satellite Imagery Soils Hydrology Government Boundaries Cadastral Flood Zones Bathymetry Postal Hydrologic Units Digital Nautical Charts Geology

  43. Data That is Difficult to Provide • Land Use • Complete Street Addressing • Current Demographics • Lake/Stream Bathymetry • Farms

  44. TIGER “Topologically Integrated Geographic Encoding and Referencing” TIGER/Line: periodic extracts from the geographic database used in census Included boundary, infrastructure & hydrography data at 1:100,000 scale Nationwide coverage In geographic coordinates, NAD 83 http://www.lib.ncsu.edu/stacks/gis/tiger.html

  45. TIGER Data: Polygon MCD’s Census Tracts Voting Districts Zip Codes Cities Counties Block Groups

  46. TIGER Data: Line Streams Streets Railroads

  47. TIGER Data: Point Key Locations Landmarks Place Names Zip+4 Centroids

  48. TIGER Availability (NC Example) TIGER 2000 Redistricting Files from www.esri.com Raw TIGER from www.census.gov NC General Assembly (state tiles) ESRI Data for ArcGIS (pre-2000) Cartographic boundary files from www.census.gov TIGER 90, 92, 94, 95, 97, 98, 99 available from various sources

  49. NC: Land Cover Data • 1996 NC Land Cover (CGIA) • Raster (Imagine) or Vector • 1998-99 Neuse Basin Land Cover Land Use (EPA) • Arc Grid • 1992 National Land Cover Dataset (USGS) • GeoTIFF • 1987 Land Use/Land Cover - TM (APES) • Arc Coverage • Older USGS Land Use/Land Cover (USGS) • GIRAS, CTG, Arc Coverage, Shapefile

  50. NC: Street Data • NCDOT County Roads (1:24,000) • Arc Coverage, Microstation • TIGER (1:100,000) • Raw TIGER, Shapefile • ESRI Data (1:100,000) • Shapefile • GDT Dynamap 2000 • Shapefile • County Government Data (large scale) • Shapefile, Arc Coverage

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