Geography 590-Land Use Modeling, April 8, 2004
By Joy Suh
Selected Sites for mostly online and well maintained with extensive data
ACCESSING CENSUS 1990 and 2000 DATA
BOUDNARY
DATA (GIS compatible)
ESRI Census Tiger/Line Data (www.esri.com/data/download/census2000_tigerline): offers free downloadable boundary data for 1990 and 2000 Census County, Census Tract, and Block, Congressional District (106th), School and Voting Districts, and Zip Code (2000). All are in shape file format.
US Census Bureau Cartographic Boundary Files (www.census.gov/www/cob/bdy-files.html): offers comprehensive and free boundary files compatible with ESRI GIS software provided by the US Census Bureau.
Digital Maps and Geospatial Data Links, University of Virginia (http://fisher.lib.virginia.edu/collections/gis/): offers downloadable Tiger/Line data and printed maps for Virginia. Links also another data sets available for VA State.
GIS Data Depot (www.gisdatadepot.com): USGS DEM, DRG, and DOQs by State and Place name. Brings also other US government related data such as flood. Free downloadable or pay.
USGS EROS (Earth Resource Observation System) Data Center (edc.usgs.gov): offer data collection and distribution center for AERIAL, ELEVATION, SATELLITE, and LAND COVER (DEM, DLG, DOQs). Free downloadable or pay.
NOAA Satellites and Information (http://www.saa.noaa.gov/nsaa/products/welcome):offers an electronic library for satellite data.
US EPA GIS Data (http://www.epa.gov/airmarkets/cmap/data/index.html): offers downloadable GIS datasets (Air, Water, Land, Emission, Climate, Sensitive Regions) compatible in ESRI GIS software.
NOAA National Climatic Data Center (http://www.ncdc.noaa.gov/oa/ncdc.html): online access to climatic data from US and International to local station level. Data can be importable to GIS environment.
GENERAL
Geodata.gov (www.geodata.gov/gos): provides a gateway to finding and obtaining geographic data, maps, and their associated information provided by government and commercial. Organized by subject but search also available through federal, state, and local level.
Starting the Hunt: Guide to Mostly On-Line and Mostly Free U.S. Geospatial
and Attribute Data (http://www.cast.uark.edu/local/hunt/index.html)
by US State Level.
Center for Global and Environmental Research, University of Iowa (www.cgrer.uiowa.edu/servers/servers_geodata.html): offers a comprehensive list for GIS related Web sites on Metadata, topical, regional and local data.
Mid Atlantic RESAC (Regional Earth Science Application Center), University of Maryland (http://www.geog.umd.edu/resac/): offers various links on Land Cover Mapping, Modelling, and Satellite Remote Maps.
NOAA World Data Center (http://www.ngdc.noaa.gov/wdc/wdcmain.html): collects and distributes data for solar, geophysical and related environmental data. Provides links for international data centers.
Please look at GIS Service center at George Mason University-Libraries (http://library.gmu.edu/resources/govt/gis.htm) for other available geospatial data in the CD-ROMs collection.