Web Tools

SPARROW (SPAtially-Referenced Regression On Watershed attributes), is watershed based and designed for use in predicting long-term average values of water characteristics, such as concentrations and amounts of selected constituents that are delivered to downstream receiving waters.

Monthly water level network map

Aquatic invertebrates are a key component of freshwater ecosystems, and an understanding of aquatic invertebrate taxonomy is central to freshwater science. The North American Aquatic Macroinvertebrate Digital Reference Collection (NAAMDRC) was created by the USGS Aquatic Experimental Lab (AXL) to provide users with high-quality digital microscopy photographs.

This online graphical data tool provides USGS National Water Quality Network data, water-quality loads, and trends.

Interactive photograph viewer used to see changes to Willow Creek Reservoir. Includes 5 cameras. Best viewing starts after September 17, 2016. This web tool is no longer updated because data from the photo monitor is no longer available. Retained for historical reference.

This is a data graphing utility that allows the user to build graphs of data from selected USGS stations. Select the station, the type of graph, the parameter(s) to plot, and the starting and ending dates for the graph.

The Hazards Data Distribution System ( HDDSExplorer) is an event-based interface that provides a single point-of-entry for access to remotely sensed imagery and other geospatial datasets as they become available during a response.

The GeoPlatform provides shared and trusted geospatial data, services, and applications for use by the public and by government agencies and partners to meet their mission needs.

Natural resources and environmental data, including orthoimagery, hydrologic, and cartographic data.

Find out how much rain has fallen—how many gallons have come down from the skies onto your roof, yard, block, or town.

The U.S. Geological Survey applied the SPARROW model to assess the loads delivered in 2002 for estuaries and coastal waters along the Atlantic Ocean and eastern Gulf of America.

The Alkalinity Calculator will analyze the titration curve and calculate the alkalinity or acid neutralizing capacity (ANC) of the sample using one or more of several different methods. Alkalinity is for filtered samples, while ANC is for unfiltered samples. The results will be displayed in tabular and graphical form.