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Hydrologic Data Sources
By David R.= Maidment
Center for = Research in Water Resources
4 March 201= 0
USGS National=
Water
Information System (NWIS)
General intro= duction http://water.usgs.gov/
Real time dat= a (15 minute streamflow for last 31 days) http://waterdata.usgs.gov/nwis/r= t
Streamflow and lake level data (daily data = up to the present) http://waterdata= .usgs.gov/nwis/sw
Streamflow measurements (individual gagings at sites) http://nwis.w= aterdata.usgs.gov/usa/nwis/measurements
Peak flow dat= a (floods) http://nw= is.waterdata.usgs.gov/usa/nwis/peak
Groundwater d= ata (observations on wells) http:= //waterdata.usgs.gov/nwis/gw
Water quality= data (instantaneous measurements) = http://waterdata.usgs.gov/nwis/qw
USGS Measurem= ent sites (descriptive information on gaging, sampling sites on streams, wells) http://waterdata.usgs.gov= /nwis/inventory
Water Use= (5 year estimates of water use by counties) http://water.usgs.gov/watuse/
Unit Values (15 min data historically). http://ida.wa= ter.usgs.gov/ida/index_usgs.cfm?ncd=3D5 This service enables you to get streamflow data= at 15 minute intervals. Its very good for small sites where floods pass quickl= y and 15 minute data are much more instructive than daily data.
NHDPlus 1:100,000 GIS vector and raster = data files for National Hydrography Dataset http://www.horizon-systems= .com/nhdplus/ For tutorial on how to use = NHDPlus and gage sites file, see h= ttp://www.ce.utexas.edu/prof/maidment/giswr2007/Ex5/Ex52007.doc
EPA Storet (Storage and Retrieval) system http://www.epa.gov/storet/d=
w_home.html
This site contains water quality and biological =
data
collected to support the Clean Water Act.&=
nbsp;
Easy to use but has gaps in its coverage of the country (including <=
st1:State
w:st=3D"on">
NCDC Climate Data Online http://cdo.ncdc.noaa.gov/CDO/cdo<= /a> Hourly, daily, monthly and annual weather and climate data at point observation sites. Tutorial on how= to use Climate Data Online:
http://www.ce.utexas.edu/prof/maidment/gradhydro2005/docs/ncdcdata.doc=
Ameriflux http://public.ornl.gov/ameriflux= / Flux of water, heat and carbon bet= ween the land surface and atmosphere.
NCDC Radar Ra= infall Archive and viewer http://www.n= cdc.noaa.gov/oa/radar/radarresources.html
Nexrad data NEXRAD Stage III Precipitat= ion data ht= tp://dipper.nws.noaa.gov/hdsb/data/nexrad/nexrad.html and procedures for using it http://www.nws.noa= a.gov/oh/hrl/dmip/nexrad.html
USDA NRCS Nat=
ional Water
and
General intro=
duction http://www.wcc.nrcs.usda.gov/
Soil and Clim= ate Analysis network http://= www.wcc.nrcs.usda.gov/scan/ Soil water balance at point locations
Snotel http://www.wcc.nrcs.usda.gov/sn= ow/ Snow data from individual sites
NOAA Soil Moi= sture Monitoring http://www.cpc.ncep.n= oaa.gov/soilmst/w.shtml
(maps produced from their n= umerical weather forecasting model)
NOAA Hydrometeorological Design Studies Center http://www.weather.go=
v/oh/hdsc/currentpf.htm
Precipitation frequency atlases for the
National Oper= ational Hydrologic Remote Sensing Center http://www.nohrsc.nws.gov/ Maps of snow surveys and forecasts.
National Drou= ght Mitigation Center http://drought.un= l.edu/
Drought Monitor http://drought.unl.edu/dm/m= onitor.html Weekly drought severity maps
TRACS wat=
er
quality data for
WIID Texa= s Water Information Integration and Dissemination (WIID) http://wiid.twdb.state.tx.us/ We= ll stratigraphy and water observations, water use foreca= sts, reservoir contents.
Gridded Weather and Climate Data
Daymet http://www.daymet.org/ NCAR Gridded historical climate in daily time steps for 1 km grid. Can be queried= by point locations. Tutor= ial on Weather Downloader (an ArcGIS application that downloads weather data for point feature classes) h= ttp://www.ce.utexas.edu/prof/maidment/giswr2007/Ex6/Ex62007.doc
COMET http://www.comet.ucar.edu/ Cooperat= ive Program for Operational Meteorology, Education and Training – distance learning education about weather and climate
Numerical Wea= ther Prediction Model descriptions and instructional tutorials http://www.meted.ucar.edu/nwp/= pcu2/ (Requires a login) Describes variables calculated in different weather mode= ls.
NCEP Nati=
onal
Centers for Environmental Prediction (numerical weather forecasting for the=
NCAR Communit=
y Data
Portal http://cdp.ucar.ed=
u/home/home.htm
Research data from
NOMADS NO= AA Operational Model Archive and Distribution System http://nomads.ncdc.noaa.gov/ Access to historical weather model= data
THREDDS http://www.unidata.u= car.edu/projects/THREDDS/ Thematic = Realtime Environmental Distributed Data Services – web services technology for weather and climate data
THREDDS data = server at Unidata http://mother= lode.ucar.edu:8080/thredds/catalog.html Tutorial on how to use this s= erver http://www.ce.utexas.edu/prof/maidment/GradHydro2007/docs/THRED= DS.htm#unidata
THREDDS data =
server
at NCDC
http://nomads.ncdc.noaa.gov/thredds/catalog.html
Tutorial on how to use this server http://www.ce.utexas.edu/prof/maidment/GradHydro2007/docs/THREDDS.= htm#ncdc
Remote Sensing Data
MOVAS http://g0dup05u.ecs.nasa.go= v/Giovanni/ MODIS Online Visualization and Analysis System – NASA data from the M= ODIS satellite sensor
NASA Atmosphe= ric Science Data Center http://eos= web.larc.nasa.gov/ (includes new netCDF data products)
Coastal Data
NOAA Tides and Currents http://tidesandc= urrents.noaa.gov/
Tides Online http://tidesonline.nos.noaa.gov/ Data on current and historical tidal levels. (6 min to monthly data at some locations)
TCOON (Te= xas Coastal Ocean Observing Network) http://lighthouse.tamucc.edu/TCOON/
Global Data
GEMStat http://www.gemstat.org/ Global wate= r quality data and statistics
WaterGap – world water resources and water use http://grdc.bafg.de/servlet/i= s/1890/
Global Precip=
itation
Climate Centre http://gpcc.dwd.de
Global
Runoff Data Centre http://grdc.bafg.de/
CUAHSI Data A=
ccess
Systems
CUAHSI HIS http://his.cuahsi.org
HydroDesktop<= /span> http://www.hydrodesktop.org
HydroExcel http://his.cuahsi.org/hydroe= xcel.html
HIS Central h=
ttp://hiscentral.cuahsi.org