USGS Surface Water Information
New & Noteworthy T&M Chapters Threatened and Recently Discontinued Streamgages Today's Water ConditionsView maps of current and historical conditions StreamflowFlood and high flow Drought Groundwater levels Surface water quality USGS in Your StateUSGS Water Science Centers are located in each state. Other Water SitesPDF Reader!Documents are presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
Methods & ModelingNational Streamflow Statistics (NSS)The NSS Program is a computer program that replaces the National Flood Frequency Program (NFF) to provide simple methods of estimating flood-peak discharges and low flow frequency/duration discharges. StreamstatsStreamStats is a Web-based Geographic Information System (GIS) that provides users with access to an assortment of analytical tools that are useful for water-resources planning and management, and for engineering design applications, such as the design of bridges. SWSTAT - Surface-Water StatisticSWSTAT contains a number of options for statistically analyzing time-series data. Streamgage Statistics Retrieval ToolThe “streamgage statistics” retrieval tool provides a table of basic summary statistics for the selected streamgage, as computed from daily values, for the period of record. Other Surface Water SoftwareAssorted hydrologic, hydraulic, and statistical analysis software applications. |