Data and Tools

Web Applications

Filter Total Items: 242
Date published: March 4, 2019

Flood Event Viewer

During large, short-term events, the USGS collects streamflow and additional data (including storm tide, wave height, high-water marks, and additional sensor deployments) to aid in documenting flood events. The USGS Flood Event Viewer provides convenient, map-based access to downloadable event-based data.

Date published: March 4, 2019

StreamStats Application

StreamStats provides access to spatial analytical tools that are useful for water-resources planning and management, and for engineering and design purposes. The map-based user interface can be used to delineate drainage areas, get basin characteristics and estimates of flow statistics, and more. Available information varies from state to state.

Date published: March 4, 2019

Annual Water Data Reports

Annual Water Data Reports were published annually for many decades as static archival products that supplemented direct access to current and historical water data provided by the National Water Information System (NWIS). This site helps users access historical Water Data Reports, electronic Site Data Sheets, or current on-demand, print-ready Water-Year Summaries.

Date published: March 4, 2019

Water Data for the Nation Automated Retrievals

How to obtain USGS water data via automated retrievals

Date published: March 4, 2019

Dissolved Solids Sources, Loads, and Yields For the Conterminous U.S.

Using the SPARROW (SPAtially-Referenced Regression on Watershed Attributes) model, long-term mean annual conditions for dissolved-solids sources, loads, and yields were predicted for nearly 66,000 stream reaches and their corresponding incremental catchments that drain the Nation.

Date published: March 4, 2019

Flood Inundation Mapper

USGS Flood Inundation Maps, along with Internet information regarding current stage from the USGS streamgage, provide emergency management personnel and residents with information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.

Date published: March 4, 2019

Federal Priority Streamgages (FPS)

This mapper identifies USGS Federal Priority Streamgages (FPS). FPS are monitoring stations that track the amount of water in streams and rivers across the Nation to meet long-term federal information needs. They are strategically positioned to serve as a backbone for the larger National Streamflow Network that is operated in cooperation with over 1,200 federal, state, tribal, and local...

Date published: March 4, 2019

Endangered, Discontinued, and Rescued Stations

This mapper identifies USGS streamgages that are in danger of being discontinued or converted to a reduced level of service due to lack of funding, gages that already have been discontinued, and gages that have been ‘rescued’ by a new funding source.

Date published: March 4, 2019

Science in Your Watershed

The Science in Your Watershed website helps you find scientific information organized on a watershed basis. This information, coupled with observations and measurements made by the watershed groups, provides a powerful foundation for characterizing, assessing, analyzing, and maintaining the status and health of a watershed.

Attribution: Water Resources
Date published: March 4, 2019

National Environmental Methods Index (NEMI)

NEMI is a searchable database of environmental methods, protocols, statistical and analytical methods, and procedures that allows scientists and managers to find and compare methods for all stages of the monitoring process.

Date published: March 4, 2019

Estimated Annual Agricultural Pesticide Use

View the geographic distribution of estimated use of numerous pesticides on agricultural land in the conterminous United States. A graph accompanies each map, which shows annual national use by major crop for the mapped pesticide for each year during the period.

Date published: March 4, 2019

Water-Quality Changes in the Nation's Streams and Rivers

This mapper provides results from the largest-ever assessment of water quality changes in the Nation's streams and rivers. More than 185 million water-quality records from over 600 Federal, State, Tribal, and local organizations were screened as part of this assessment.