gis data in the uw libraries fall 2009 [email protected]
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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
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 [email protected], or at (206) 543-9392.
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
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 floor
GIS 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)
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.
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
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
Digital Raster Graphic (DRG)
City of Seattle
Digital Orthophoto
Satellite Imagery
North American Landscape Characterization (NALC) derived from Landsat – thumbnail image courtesy Harvey Greenberg, ESS
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
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)
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
Acquiring data Download Purchase Data sharing Regardless, be aware of:
Licensing and restrictions Public domain vs. Proprietary
After downloading… Unzipping (www.winzip.com) Importing, changing format
http://www.gisdatadepot.com/helpdesk/formats.html
Check your software’s translation capabilities
Attaching attribute information Remember to use your software’s help
files! Some more help:
wagda.lib.washington.edu/gishelp/faq/
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…
Washington State resources http://wagda.lib.washington.edu
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
Searching for Data UW Libraries Catalog,
catalog.lib.washington.edu 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
Washington State resources Washington State Geospatial
Clearinghouse, wa-node.gis.washington.edu Like a library catalog Links to WA-created metadata, some
downloadable data Connects to international (searchable) network
of metadata nodes GeoData.gov
Harvests data from metadata clearinghouses
Searching for Data Geography Network (free & fee)
http://www.geographynetwork.com Terraserver, www.terraserver.com GIS Data Depot,
www.gisdatadepot.com Google Earth – downloading
imagery requires subscription
Searching for Data To purchase:
WA Department of Natural Resources USGS: earthexplorer.usgs.gov Contact various counties directly
(some sell data, some give it away free, some seek data swaps)
WAGDA provides a contact list for WA counties
Attribute Data w/geographical component
Good first source for many topics: access.wa.gov
http://guides.lib.washington.edu/govlaw
Various US government sites, for example www.epa.gov
Regional Data Sources Examples of water/fish-related
information: Interior Columbia Ecosystem
Management Project, http://www.icbemp.gov/spatial/
Streamnet, http://www.streamnet.org/mapping_apps.html
Fish Passage Center, http://www.fpc.org/links.html
Census GIS data on the web Washington State Census data
Census geodatabases on WAGDA (2000 and 1990)
Geographic and demographic data www.census.gov/geo/www/cob/ www.esri.com/censuswatch
TIGER data (shapefiles) http://www.esri.com/data/download/census2
000_tigerline/index.html
Federal Sources Different agencies with different foci:
FCC, http://www.fcc.gov/oet/info/maps/ USF&W,
http://www.fws.gov/data/datafws.html Branches within agencies. (USGS, BLM):
USGS global land characterization, http://edc2.usgs.gov/glcc/
BLM OR/WA Data Library, http://www.blm.gov/or/gis/data.php
Search Engine or Portal? Search Engines
http://www.google.com http://www.yahoo.com
Portals The GeoCommunity
http://www.geocomm.com/ GIS Lounge
Data Warehouse http://gislounge.com/data/data-warehouses/
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
Other sources Commercial vendors (ESRI, of
course) Geography Network http://www.geographynetwork.com/
Ask local GIS users and other colleagues
Research groups, nonprofits, other colleges/universities
Libraries, academic and otherwise
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
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: [email protected]
Other GIS help on campus
Main UW GIS site at http://gis.washington.edu/esri
Software and analysis questions to [email protected]@u.washington.edu
UW Departments, courses, and facilities for GIS education & research http://wagda.lib.washington.edu/uwcgia/
GIS in the Libraries [email protected] 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