Spatial Data
at MIT:
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web based search tool: GeoWeb
Search Tool for ArcGIS: download/install
create account
general help
census help
Teaching + Learning
Maps + Mapping
Social Science Data Services
US Census
GIS Lab
Rotch Library, building 7-238
Contact Us
gishelp(at)mit.edu
Online nationwide United States Spatial Data
International Association of Assessing Officers, Assessor Appraisal Web Sites for the US
ASTER & MODIS
The LP DAAC Data Pool is hosting ASTER data covering the US, and MODIS data covering the globe for free:
http://edcdaac.usgs.gov/datapool/datapool.asp
ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) is an imaging instrument flying on Terra, a satellite launched in December 1999 as part of NASA's Earth Observing System (EOS) . ASTER is being used to obtain detailed maps of land surface temperature, reflectance and elevation. For more information about ASTER see the JPL website:
http://asterweb.jpl.nasa.gov/index.asp
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
http://modis.gsfc.nasa.gov/about/
FEMA Flood Insurance Rate Maps (FIRM) - view and download flood maps in pdf or tif format. Searching can be done by address or community - FIRM maps for the US are available in GIS format in the GIS lab: call number G3701.C32 1998.U5
AREI: Agricultural Resources and Environmental Indicators Database and Mapping Tool: This site combines the Economic Research Service of the USDA with Internet mapping technology. One can map farm output, information about farm workers, inventory and sales for crops and livestock, and much more. Tables can be viewed and downloaded.
Formerly Used Defense Sites (FUDS) Public GIS: The Department of Defense (DoD) is responsible for environmental restoration of properties that were formerly owned by, leased to or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. Such properties are known as Formerly Used Defense Sites (FUDS). The Army is the executive agent for the program and the U.S. Army Corps of Engineers is the organization that manages and directs the program's administration.
National Agricultural Statistics Service: This government site is part of the US Department of Agriculture. It provides maps, charts, and historical data about crops, livestock, economics, and research. Historical data goes back to 1970. It also includes an agricultural chemical use database that allows the user to map a specific crop and the amount of pesticides used to treat it.
Binational Border Transportation Planning &
Program Process:
includes downloadable base layers for mexico's transportation system in ESRI data format.
Bureau of Transportation Statistics Mapping Center
Environmental Protection Agency GIS
National Air Toxics Assesment: Emission Density Maps,Data Tables Data Summaries, Data Sources
GAP - keeping common species common - USGS National Biological Information Infrastructure: Gap Analysis is a scientific means for assessing to what extent native animal and plant species are being protected.
Maps in American Factfinder, US Census Bureau
Microsoft's Terraserver is large catalog of aerial photographs and remotely sensed imagery. This is not a comprehensive site. It does have some data for outside of the US.
National Climactic Data Center
The National Elevation Dataset
downloadable from: http://seamless.usgs.gov and http://nationalmap.gov
National Geospatial Data Clearinghouse, Federal Geographic Data Committee (FGDC) maintains access to collection of over 100 spatial data servers that have digital geographic data primarily for use in Geographic Information Systems (GIS), image processing systems, and other modeling software.
National Center for Health Statistics - GIS and Public Health
National Hydrography Dataset (NHD)
The National Historic Geographic Information System (NHGIS) is a project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2000.
National Wetlands Inventory
Wetland and Deepwater Habitat Classification
USGS Maps and GIS Information of Water Resources
National Land Cover
Characterization Project
NLCD Land Cover Class
Definitions
downloadable from: http://seamless.usgs.gov and http://nationalmap.gov
The National Map Seamless Data Distribution System
STATSGO: soil information: State by state soil data from the USDA/NRCS as Arc/INFO export format files
Shuttle Radar Topography Mission
USGS Geographic Data Download: provides 1:2k DEM, 1:24K DEM, 30m NED, 1:2m DLG, 1:24K DLG, LULC, NLCD, and NHD. These datasets can often times be found from other websites in formats that may be easier to work with.
USGS Topographic maps MapFinder from Digital Data Services Inc - navigate and view in Google Earth or download as a tif image
USGS National
Geologic Map Database
Major USGS
Geoscience Databases and Science Programs
WebGIS - offers free downloads of Terrain data, LULC, and DLGs in shapefile and other formats
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