Geospatial One Stop http://www.geodata.gov/
A central source for US Government data. This is a very large compendium of data sources and also information about data.
Google Earth http://earth.google.com/ An online map viewer with rapid imagery and terrain presentation. You’ve been introduced to this in Exercise 1.
Water Resources Maps and GIS Information http://water.usgs.gov/maps.html A link to 12 data sources with map data from the USGS or organizations connected with the USGS.
Get the data http://water.usgs.gov/lookup/getspatial?huc250k
The 8-digit hydrologic cataloging units are the basic water
resources subdivision of the
EPA Reach File 1 (RF1), Version 2.0
Get the data http://water.usgs.gov/GIS/dsdl/erf1_2.e00.gz It used to be that you could get RF1 for each 2-digit water resources region of the nation separately, but it appears that is no longer the case, and this file contains RF1 for the whole nation.
Get the data http://www.epa.gov/waterscience/basins/b3webdwn.htm
Contains a large inventory of environmental data organized by 8-digit hydrologic cataloging units
Get the data http://nhd.usgs.gov/data.html
NHD in Geodatabase http://nhd.usgs.gov/geodatabase_review.html
NHDPlus http://www.horizon-systems.com/nhdplus/ A new dataset that integrates the National Hydrography Dataset and National Elevation Dataset.
National Inventory of Dams http://crunch.tec.army.mil/nid/webpages/nid.cfm
Seamless data distribution from EROS Data Center http://seamless.usgs.gov/
1 arc-second cells (1:24,000 scale) National Elevation Dataset http://gisdata.usgs.net/ned/
US Coastline from National Geophysical
Coastline Extractor http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html
Statsgo – State Soil Database (1:250,000 scale) http://www.ncgc.nrcs.usda.gov/products/datasets/statsgo/
Statsgo is available for the whole
For an exercise on interpretation of Ssurgo data, see:
National Land Cover Institute http://landcover.usgs.gov/
Land cover data on the seamless server http://seamless.usgs.gov/
USGS Land Use/Land Cover (LULC) http://edc.usgs.gov/products/landcover/lulc.html
National Wetlands Inventory Center http://www.nwi.fws.gov/
National Atlas of the
Hydrologic Landscape Regions of the
-- description http://ks.water.usgs.gov/Kansas/pubs/abstracts/of.03-145.htm
National Climate Data Center http://www.ncdc.noaa.gov/
NCDC Climate Data Online http://cdo.ncdc.noaa.gov
Description of how to use Climate Data Online:
USDA Water and
For an exercise using PRISM and land cover data to estimate nonpoint source pollution, see:
Gridded daily precipitation and temperature on a 1 km grid, 1980—1997.
USGS National Water Information System http://water.usgs.gov/usa/nwis/
Real Time USGS Data on Water Watch http://water.usgs.gov/nwis/rt
Shuttle Radar Topography
ESRI Geography Network http://www.geographynetwork.com/
Digital Chart of the World http://www.maproom.psu.edu/dcw/
GTOPO30 - 30 arc-second cell (1:1,000,000 scale) global DEM http://edcdaac.usgs.gov/gtopo30/gtopo30.html
Hydro1K – hydrologic derivative datasets from GTOPO30 http://edcdaac.usgs.gov/gtopo30/hydro/index.html
EROS Data Center Gateway http://edcimswww.cr.usgs.gov/pub/imswelcome/
Global Water and Energy Experiment (GEWEX) http://www.gewex.org/
TNRIS Vector Data http://www.tnris.state.tx.us/DigitalData/data_cat.htm
Utah Automated Geographic Reference Center,
contains USGS Maps, DEM's, Orthophoto quads within
Western Regional Climate Center
Nexrad data NEXRAD Stage III Precipitation data and procedures for using it.
Snotel and NRCS National Water and Climate Center.
Great Salt Lake Basin Hydrologic Observatory. http://greatsaltlake.utah.edu/
MesoWest climate network. http://www.met.utah.edu/mesowest/
I prepared in past years a web page of term paper ideas. I updated it a bit this year at
This contains these data sources as well as possibly some others.
Geospatial OneStop for
“National Map” in
Conservation and Survey Division: http://csd.unl.edu/default.asp
Remote sensing data (CALMIT): http://nebraskaview.unl.edu/neview02.htm
For more useful web links, see: http://www.ce.utexas.edu/prof/maidment/gishydro/docs/websites/othr_web.htm