Useful Internet Sites for GIS and Water Resources

Data for the United States

Geospatial One Stop http://www.geodata.gov/gos

A central source for US Government data

Hydrologic Unit Maps (HUC)

Description http://water.usgs.gov/GIS/huc.html

Get the data http://water.usgs.gov/lookup/getspatial?huc250k

The 8-digit hydrologic cataloging units are the basic water resources subdivision of the United States

EPA Reach File 1 (RF1)

Description http://water.usgs.gov/GIS/metadata/usgswrd/erf1.html

Get the data http://water.usgs.gov/lookup/getspatial?erf1

EPA Basins Model

Description http://www.epa.gov/OST/BASINS/

Get the data http://www.epa.gov/OST/BASINS/gisdata.html

Contains a large inventory of environmental data organized by 8-digit hydrologic cataloging units

National Hydrography Dataset (NHD)

Description http://nhd.usgs.gov/

Get the data http://nhd.usgs.gov/data.html

NHD in Geodatabase http://nhd.usgs.gov/geodatabase_review.html

NHD Applications Symposium, Dec 2000 http://www.crwr.utexas.edu/giswr/events/122000nhda/

The stream network and water bodies of the United States organized by 8-digit hydrologic cataloging units

National Inventory of Dams http://crunch.tec.army.mil/nid/webpages/nid.cfm

Digital Elevation Models (DEMs) for the United States

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/

Elevation Derivatives for National Applications (EDNA) http://edna.usgs.gov/

US Coastline from National Geophysical Data Center

Coastline Extractor http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html

USDA Soils Data

Statsgo – State Soil Database (1:250,000 scale) http://www.ncgc.nrcs.usda.gov/branch/ssb/products/statsgo/index.html

Ssurgo – County Soil Database http://www.ncgc.nrcs.usda.gov/branch/ssb/products/ssurgo/data/

Statsgo is available for the whole United States. Ssurgo is much more detailed but is available only in some counties. For an exercise on how to interpret Statsgo, see: http://www.ce.utexas.edu/prof/maidment/giswr98/statland/webfiles/viewstat.htm

For an exercise on interpretation of Ssurgo data, see:

http://mather.ar.utexas.edu/Courses/parmenter/gis/arcgis_tips/arcgis_soils/

Land Use/Land Cover Data

USGS Land Use/Land Cover (LULC) http://edc.usgs.gov/products/landcover/lulc.html

National Wetlands Inventory Center http://www.nwi.fws.gov/

National Land Cover Dataset http://landcover.usgs.gov/nationallandcover.asp

National Atlas of the United States http://www.nationalatlas.gov/atlasftp.html

Hydrologic Landscape Regions of the United States http://water.usgs.gov/lookup/getspatial?hlrus

description http://ks.water.usgs.gov/Kansas/pubs/abstracts/of.03-145.htm

Climate

USDA Water and Climate Center (PRISM maps of mean precipitation) http://www.wcc.nrcs.usda.gov/climate/prism.html

National Climate Data Center http://www.ncdc.noaa.gov/

For an exercise using PRISM and land cover data to estimate nonpoint source pollution, see: http://www.ce.utexas.edu/prof/maidment/giswr98/nonpoint/webfiles/corpus.html

Water Resources

USGS National Water Information System http://water.usgs.gov/usa/nwis/

Real Time USGS Data on Water Watch http://water.usgs.gov/nwis/rt

Global Data

Shuttle Radar Topography Mission (SRTM) http://srtm.usgs.gov/

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/

Texas Data

Texas Natural Resource Information System http://www.tnris.state.tx.us/

TNRIS Vector Data http://www.tnris.state.tx.us/DigitalData/data_cat.htm

For more useful web links, see: http://www.ce.utexas.edu/prof/maidment/gishydro/docs/websites/othr_web.htm

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