MNRG - 2005 Cumulative Impacts Conference
Resources for Cumulative Impact Analysis - Spatial Data
GIS in Transportation
This FHWA site links to GIS applications, data software, and organizations,
as well as GIS sites in other Federal agencies.
Alexandria Digital Library
University of California, Santa Barbara's digital library, including collections
of georeferenced spatial data and downloadable softward codeFederal Geospatial
Data Clearinghouse Search Engine
Federal Geospatial Data Clearinghouse
Search Engine
A collection of over 250 spatial data serviers with digital geographic
data, primarily for use with GIS and other spatial modeling software
GIS Data Depot
A source for many national spatial data sets including USGS maps: such
as Digital Raster Graphic (DRG), Digital Elevation Models (DEM), Digital
Ortho Quarterquads (DOQQ); FEMA flood data, and Census Bureaus TIGER (road)
maps. Users must be proficient in GIS and may require access to GIS software.
National Atlas of the United States
- USGS
This is a US Government site designed to provide a reliable summary of
national-scale geographical information, with links to more detailed map
sites. It includes information on biology, geology, demography, environmental,
water, and other maps at a national scale and provides map-making capabilities.
Starting the Hunt: Guide To
Mostly On-line And Mostly Free U.S. Geospatial Data
An excellent compendium of "on-line and mostly free", of GIS data for
each state, at national and state and local levels..
The Geography
Network
ESRI's data clearinghouse and map serving site, offering different ways
to discover and access geographic data for use with your GIS software.
Sources include downloadable data, dynamic data and maps, offline data
on commercially-available CDs and DVDs, and links to free clearinghouses
of data.
Earth Observing System
Data Gateway
Satellite and aerial imagery from NASA, including LANDSAT 7 and useful
links
Landsat.org
Digital imagery library of Landsat data for the world. Images can be ordered.
NASA Image Server
Digital imagery library of images from Landsat 4, 5 around 1990 and Landsat
7 around 2000. Images can be downloaded for free.
USGS EROS Data
Center
Pointers to data from a wide array of earth observing satellites, with
links for accessing or ordering. This site includes links to images that
record events of historical significance or strike the imagination because
of their beauty.
Land
Cover Data Directory
The Environmental Protection Agency's starting point for land cover spatial
data.
USGS Geographic Data Download
Land Use - Land Cover (LULC) and National Land Cover Data (NLCD) links,
including links to public domain software.
U.S. Land Cover Characteristics
Data Set 1990
USGS Alaska Geospatial Data Clearinghouse for satellite-derived data sets,
mostly for Alaska and Canada, but also includes North America ecoregions.
Terraserver
Microsoft's warehouse of digital imagery, including high resolution USGS
aerial imagery and topographic maps. You can search by entering a town/city
or a street address, with "advanced find"
capabilities.
FHWA GIS in Transportation
This site provides information regarding practices and innovative uses
of GIS for transportation planning, links to other GIS resources (including
reports and software vendors) and FHWA GIS expert point of contact.
GOOGLE Earth
An easy to use free resource for aerial photography at many scales. Additional
software is available for a fee:
- Movie making
- Premium printing
- GIS data importing
- Traffic counts data
- Shopping center data