CE 394K GIS = in Water Resources

Useful Inter= net Sites for GIS and Water Resources

Data for the = United States

Geospatial On= e Stop http://www.geodata.gov/

A central source for US Government= data. This is a very large compend= ium of data sources and also information about data.

Google Earth http://earth.google.com/ An online map viewer with ra= pid imagery and terrain presentation.

Water Resourc= es 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.

Hydrologic Unit Maps (HUC)

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

Get the data http://water.usgs.gov/loo= kup/getspatial?huc250k

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

EPA Reach File 1 (RF1), Version 2.0<= /p>
Description http://w= ater.usgs.gov/GIS/metadata/usgswrd/XML/erf1_2.xml

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.

EPA Basins Model

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

Get the data htt= p://www.epa.gov/waterscience/basins/b3webdwn.htm

Contains a large inventory of environmental data organ= ized by 8-digit hydrologic cataloging units

National Hydrography Dataset (NHD)

Description http://nh= d.usgs.gov

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

NHD in Geodatabase http://nhd.usgs.gov/ge= odatabase_review.html

NHDPlus http://w= ww.horizon-systems.com/nhdplus/ A new dataset that integrates the National Hydrography= Dataset and National Elevation Dataset.

National Inventory of Dams http://crunc= h.tec.army.mil/nidpublic/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 htt= p://gisdata.usgs.net/ned/

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.soi= ls.usda.gov/survey/geography/statsgo/

Ssurgo – County Soil Database htt= p://www.soils.usda.gov/survey/geography/ssurgo/

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

USDA Data Gateway http://datagatew= ay.nrcs.usda.gov/

Land Use/Land Cover Data

National Land Cover Institute http://landcover.usgs.gov/

Land cover data on the seam= less server http://seamless.usgs.gov/<= /p>
USGS Land Use/Land Cover (LULC) http://edc.usgs.g= ov/products/landcover/lulc.html

Land Cover Change 1992 to 2001 http://www.mrlc.gov/multizone.ph= p

Exercise on analyzing Land Cover Change http://www.ce.utexas.edu/prof/maidment/giswr2007/Land_Change/Land= Change.mht

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

National Atlas of the United States http://www.nationalatla= s.gov/atlasftp.html

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

-- desc= ription ht= tp://ks.water.usgs.gov/Kansas/pubs/abstracts/of.03-145.htm

Climate

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

NCDC Climate Data Online http://cdo.ncdc.noaa.gov

&nbs= p; Description of how to use Climate Data Online:

http://www.ce.utexas.edu/prof/maidment/gradhydro2005/docs/ncdcdata.doc=

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

For an exercise using PRISM and land cover data to est= imate nonpoint source pollution, see:

http:= //www.ce.utexas.edu/prof/maidment/giswr2005/ex6/ex6.doc

Nati= onal Center for Atmosphe= ric Research DayMet http= ://www.daymet.org/

Gridded daily precipitation and temperature on a 1 km grid, 1980—1997.

Nexrad= data NEXRAD St= age III Precipitation data and procedures for us= ing it. (No more recent than 2005 and rather awkward to use)

University of Washington gridded meteorological data
http://www.hydro.washington.edu/SurfaceWaterGroup/Data/gridded/inde= x.html

NRCS National W= ater and Climate Center. Includes water supply forecasts, sn= ow, precipitation and temperature

SNOTEL. Real t= ime snow data

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

CUAHSI Hydrologic Information System http://his.cuahsi.org

WaterOneFlow web services = for water data http:= //hiscentral.cuahsi.org/pub_services.aspx

<= /o:p>

LandSat

You might also add to your links the usgs website for free landsat scenes.

http://glovis.usgs.gov.

Global Data<= o:p>

Digital Chart of the World http://www.maproom.psu.edu/dcw/

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

HydroSheds – hydrolo= gic derivative datasets from SRTM http://gisda= ta.usgs.net/website/HydroSHEDS/viewer.php

GTOPO30 - 30 arc-second cell (1:1,000,000 scale) globa= l DEM http://edcdaac.usgs.g= ov/gtopo30/gtopo30.html

Hydro1K – hydrologic derivative datasets from GT= OPO30 http://edcdaac.us= gs.gov/gtopo30/hydro/index.html

EROS Data Center Gateway http://edcimswww.cr.u= sgs.gov/pub/imswelcome/

Global Water and Energy Experiment (GEWEX) http://www.gewex.org/

ESRI Geography Network http://www.geographynetwork.com/<= /a>

WaterGap – world wat= er resources and water use http://grdc.= bafg.de/servlet/is/1890/

Texas Data

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

TNRIS Data http://www.= tnris.state.tx.us/datadownload/download.jsp

Ut= ah Dat= a

Utah Automated Geographic Reference = Center, contains USGS Maps, DEM's, Orth= ophoto quads within Utah= and Free. Also includes if you look hard enough, liquefaction potenti= al, Hydrography and Environmental data for certain locati= ons. Also – 2 m resolution bear earth LIDAR data for Wasatch front.
Western Regional Climate Center
Bear River Watershed Information System. http://www.bearriv= erinfo.org/
Great Salt Lake Basin Hydrologic Observatory. http://greatsaltlake.utah.edu/
Utah Climate Center. http://climate.usurf.usu.edu/
MesoWest climate network. http://www.met= .utah.edu/mesowest/

Ne= braska Dat= a

Geospatial OneStop for Nebraska

Nebraska View (C= ALMIT)

NE Digital Data Bases (Co= nservation and Survey Division)

National Drought Mitigation C= enter

H= igh Plains Regional Climate Center

<= /o:p>

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