Lead page for detailed United States surface water information with links to real-time and historic streamflow data, suspended sediment data, USGS programs and facilities, publications, techniques, and featured news releases.
Homepage for USGS national surface-water data with more than 850,000 station years of time-series data for stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall plus real-time data and tutorial.
Main page for National Hydrography Dataset (NHD), a comprehensive set of digital spatial data about surface water features, with links to references, data, software tools, applications, tutorials, technical support, and data maintenance.
National Streamflow Information Program home page describing the operation and maintenance of 7000 streamgages, overview of the program, system for collection of streamflow data, maintaining of historic streamflow data, and available reports.
Brief review of studies with sidescan sonar on sediment in the Grand Canyon as part of research on the changes brought about by the Glen Canyon Dam and the results gathered from a 1996-controlled flood experiment with links to related information.
Database with detailed data on sites and data collected on scour (downward erosion by streamflow) at bridges, piers, and abutments in the United States.
Paper on the accelerated erosion of the Rio Puerco, a tributary of the Rio Grande in New Mexico, which has deepened and widened its channel, or arroyo, since the settlement of the region.
A guide to measuring the flow of water across the ground water surface water interface, with an overview of available methods and details of specific methods to use.