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  1. GIS Data in the UW Libraries Fall 2009

  2. Overview • Services • Data collections • How to find data • Washington State sources • Regional sources • State statistical sources (briefly) • Census sources • Federal sources • And how to find it if you don’t see it… • Metadata

  3. Libraries Services • Our GIS Service Policy: • The Libraries provides UW students, faculty and staff with access to GIS software and data owned by the Libraries. • When requesting data, please leave a 48-hour turnaround (work days only) to receive data. • Library staff are available to meet one-on-one with UW students, staff and faculty, and to assist in retrieving data. Please contact GIS staff via email at, or at (206) 543-9392.

  4. Objectives • Provide access to GIS and desktop mapping software • Identify, acquire and provide access to digital geospatial and statistical data • Help patrons determine their data needs and assist with locating data • Help patrons incorporate data into projects

  5. Software & Equipment • ESRI Site License ArcGIS Desktop 9.3 • Map Collection, Suzzallo Library, Basement • 2 computers • Use for 30-60 minute data consults and time for basic manipulation before taking data away • GIS Lab, Suzzallo Library, Ground floorGIS assistance available during academic quartersHours: M-Th 3:30-7 pm 20 computers Fri 1-4 pm group work OK • ArcGIS installed in General Access Computer Labs • Mary Gates Hall (ArcGIS 9.2) • Odegaard Undergraduate Library (ArcGIS 9.2)

  6. Geospatial Data Collections • Collection focuses on Seattle, Puget Sound and Washington State. • We also collect for the United States, international data, individual countries. • Data is listed in UW Library catalog. • Ask if you can’t find it.

  7. GIS Data • Types of information • Census data, demographics, government information (local, state and federal) • Information of a more “physical” nature: geology, topology, hydrology, etc. • Can include streets, parcel information, rivers, lakes and drainage, soils, geology, air quality information, median household income, etc. • Imagery

  8. Data formats • Vector (points, lines, polygons) e.g., bus stops, streets, parcels • Raster (cells) e.g., digital elevation models • Image, e.g., digital aerial photography, digital raster graphics, GeoTIFF • Statistical, e.g., .dbf files, Excel, Access, .csv, .txt, e.g., assessor’s files

  9. Digital Raster Graphic (DRG)

  10. City of Seattle

  11. Digital Orthophoto

  12. Satellite Imagery North American Landscape Characterization (NALC) derived from Landsat – thumbnail image courtesy Harvey Greenberg, ESS

  13. Data producers • Local governments • Examples: City of Seattle, King, Pierce, Thurston, Snohomish Counties • Federal government agencies • USGS, USFS, US Census • WA State agencies • Dept. Natural Resources, Dept. of Transportation, Dept. of Ecology • Various regional and other organizations • Puget Sound Regional Council

  14. Data Restrictions • Some is restricted by license agreement to UW students, staff and faculty only • For academic & research purposes only • Permissions needed for publishing (includes the web)

  15. Data Restrictions • Much data is in the public domain • anything from a US federal government agency, for example • Local, state, tribal and foreign national governments may NOT provide public domain access to digital data • Data in the public domain can be used for any purpose • No matter the purpose, make sure your citations are correct: • Cartographic Citations: A Style Guide, by Suzanne M. Clark, Mary Lynette Larsgaard, Cynthia M. Teague. On the Maps Reference Shelf at GA 108.7 .C55 1992 • Style guides on web linked to Finding Geospatial Data resource page

  16. Acquiring data • Download • Purchase • Data sharing • Regardless, be aware of: • Licensing and restrictions • Public domain vs. Proprietary

  17. After downloading… • Unzipping ( • Importing, changing format • • Check your software’s translation capabilities • Attaching attribute information • Remember to use your software’s help files! • Some more help:

  18. Finding GIS data • Introduction to: • WAGDA – WA Geospatial Data Archive & other UW data sites • Finding data in UW catalog • Metadata Search portals • State statistical sources (briefly) • Regional Sources • Census sources • Federal Sources • And how to find it if you don’t see it listed…

  19. Washington State resources • • Washington State Geospatial Data Archive. Data available for downloading, includes Washington DEMs, Washington geology, Seattle & King County data layers, Puget Sound imagery, etc. • Primarily ArcGIS, ArcView formats

  20. Searching for Data • UW Libraries Catalog, • Keywords • Name of the area you’re interested in, plus “electronic resource” and “maps” or “gis” • e.g.: seattle and electronic resource and gis • Much public domain data is available through UW, via interlibrary loan or direct download

  21. Washington State resources • Washington State Geospatial Clearinghouse, • Like a library catalog • Links to WA-created metadata, some downloadable data • Connects to international (searchable) network of metadata nodes • • Harvests data from metadata clearinghouses

  22. Searching for Data • Geography Network (free & fee) • Terraserver, • GIS Data Depot, • Google Earth – downloading imagery requires subscription

  23. Searching for Data • To purchase: • WA Department of Natural Resources • USGS: • Contact various counties directly (some sell data, some give it away free, some seek data swaps) • WAGDA provides a contact list for WA counties

  24. Attribute Data w/geographical component • Good first source for many topics: • • Various US government sites, for example

  25. Regional Data Sources • Examples of water/fish-related information: • Interior Columbia Ecosystem Management Project, • Streamnet, • Fish Passage Center,

  26. Census GIS data on the web • Washington State Census data • Census geodatabases on WAGDA (2000 and 1990) • Geographic and demographic data • • • TIGER data (shapefiles) •

  27. Federal Sources • Different agencies with different foci: • FCC, • USF&W, • Branches within agencies. (USGS, BLM): • USGS global land characterization, • BLM OR/WA Data Library,

  28. Search Engine or Portal? • Search Engines • • • Portals • The GeoCommunity • • GIS Lounge • Data Warehouse

  29. Search Using Google • Keywords: name of the area you’re interested in, plus terms like: • GIS, Shapefile, Coverage, .e00, Download, Data • Example: washington state and gis • Example: • Salmon and gis and washington state • Salmon and gis and pacific northwest • Salmon and gis and download

  30. Other sources • Commercial vendors (ESRI, of course) Geography Network • Ask local GIS users and other colleagues • Research groups, nonprofits, other colleges/universities • Libraries, academic and otherwise

  31. Metadata • Metadata is “data about the data” • Shows lineage, data quality, methods, modifications, etc. • Helps determine “fitness for use” • It’s imperative to get this for every data set you download! • Clearinghouse & Example

  32. Needs Assessment • Lists a few points to consider before you start looking for data • Needs Assessment is online • Can bring form into Libraries; helps us understand your needs as we get started looking for data. Can save you time. • Ask for help:

  33. Other GIS help on campus • Main UW GIS site at • Software and analysis questions to • UW Departments, courses, and facilities for GIS education & research

  34. GIS in the Libraries • • 206-543-9392 Map Collection • GIS Graduate Staff Assistant – Yan Jiang • GIS Laboratory – ground floor, Suzzallo Library in Government Publications area • GIS Assistance available 17.5 hours/week during academic quarters – closed summer quarter