This article is from the Meteorology FAQ, by Tom Berg hcane@mobile.gulf.net with numerous contributions by others.
<URL:http://www.usgs.gov/data/index.html>
U.S. Geological Survey (USGS) data products, including cartographic
data, geologic data, water data, and links to other USGS machines
which hold data or metadata archives.
<URL:http://sun1.cr.usgs.gov/eros-home.html>
U.S. Geological Survey's EROS Data Center (EDC). Aerial photography,
cartographic data, earth science data, hydrologic data,
landuse/landcover data, radar data, satellite and sat
ellite derivative data, topographic data.
<URL:http://sun1.cr.usgs.gov/landdaac/landdaac.html>
Earth Resources Observation Systems (EROS) Data Center Distributed
Active Archive Center (EDC.DAAC). Archives include land processes
data, including satellite- and aircraft-acquired data: 1km AVHRR,
Landsat Pathfinder data, Digital Chart of the World Derived Digital
Elevation Model Data (topographical charts), SIR-C/X-SAR (Spaceborne
Imaging Radar-C/X-band Synthetic Aperture Radar).
<URL:http://www.ngdc.noaa.gov>
<URL:gopher://gopher.ngdc.noaa.gov>
<URL:ftp://ftp.ngdc.noaa.gov/>
The National Geophysical Data Center (NGDC) of NOAA manages
environmental data in the fields of solar-terrestrial physics, solid
earth geophysics, marine geology and geophysics, paleoclimatology, and
glaciology (snow and ice). In each of these fields it also operates a
World Data Center (WDC A) discipline center. Data and metadata are
available.
<URL:http://www.ucar.edu/dss/geo.html>
National Center for Atmospheric Research (NCAR)'s catalog of
geophysical and vegetation datasets. Several of these datasets are
directly available via this page.
<URL:http://ageninfo.tamu.edu/apl-us>
<URL:gopher://ageninfo.tamu.edu/11/apl-us>
Shaded relief map of USA generated from 30 arc second DEM dataset.
<URL:ftp://ftp.csn.org/COGS/>
The Computer Oriented Geological Society (COGS) has various
mapping-related information, datasets, and software.
<URL:ftp://spectrum.xerox.com/pub/map/>
Various USGS and other uncopyrighted data. Includes USGS DEM and DLG
files, land use information, and some software to read these files.
 
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