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Stream-gage measurement
Use of specialized instruments designed for observing, checking, and recording the water discharge that occurs in a natural channel.
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Surface-water reports [More info]
Links to Office of Surface Water reports on streamgaging, streamflow data and information, current meters, sediment, modeling, journal articles, and techniques.
Suspended-sediment database: daily values of suspended sediment and ancillary data [More info]
Enables searching by state, hydrologic region, basin, time period, and length of record to retrieve suspended sediment data for the United States.
Upper Wallkill River study [More info]
Program to measure streamflow stage and discharge at four sites in the Upper Wallkill River Valley's Black Dirt Region and determine Total Suspended Solids (TSS) concentration data and estimate loads of TSS and sources of contaminants.
USGS activities in Texas: Texas sites by basin [More info]
Real-time water data, interactive maps, and flood reports for river basins in Texas.
PDF USGS Hydro-Climatic Data Network 2009 (HCDN?2009) [More info]
This updated subset of USGS streamgages for which the streamflow primarily reflects prevailing meteorological conditions for specified years, screened to exclude sites where human activity affects the natural flow of the watercourse.
Water data for Illinois [More info]
Links to streamflow, surface and ground water, water quality, flood, drought, and precipitation data in real-time and for historic time periods for Illinois.
Water resources [More info]
Hydrologic and water-quality information with access to water data, publications, and maps, as well as to recent water projects and events.
Water resources applications software: NCALC, Manning's n value calculation program [More info]
Software for calculating Manning's roughness coefficient values in stream channels with installation instructions for Unix and DOS systems.
Water resources data for Washington [More info]
Access to data on water resources of Washington including surface water, ground water, water quality, water use, GIS, and biological datasets and access to reports.
Water resources for Maryland, Delaware, and Washington, D.C. [More info]
USGS water resources home page with links to detailed hydrologic information for Maryland, Delaware, and District of Columbia on ground and surface water, water quality, real-time records, news releases, local weather, and reservoir levels.
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