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All Web Tools

Explore and refine search with advanced filtering for all web tools including apis, data access and data analysis tools, data visualizations, digital repositories, and interactive maps.

Filter Total Items: 573

Eastern United States 2002 Nutrient Loading

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 Mexico.

Alkalinity Calculator

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.

USGS Science in Alaska

The portal is a searchable, web map-based tool to facilitate public and partner access to information on over 200 subjects under USGS study in the Nation's largest State.

Groundwater Recharge in Pennsylvania

A map app to get recharge values from streamgage locations in Pennsylvania. Development of this app is described at the Related Science page.

Pacific Northwest SPARROW Mapper, 2002

The SPAtially Referenced Regressions On Watershed attributes (SPARROW) model was used to perform an assessment of surface‐water nutrient conditions and to identify important nutrient sources in watersheds of the Pacific Northwest region of the United States (U.S.) for the year 2002.

Oil Shale Data Downloads

This page accesses data for Oil Shale Assessments of PIceance, Uinta and Green River Basins.  It also includes fischer assays and scans of well logs in the Colorado Piceance Basin. 

Flood Database for Colorado

An easy-to-use, Web-based geodatabase of historical flood and paleoflood information which includes links to sources of flood data.  The interface makes this collection of information useful to water-resource managers to better understand the historic events for improved flood-frequency estimates of the largest floods in Colorado. 

Flood high and low flows for Oklahoma

View flooding high and low flows for streams and rivers throughout Oklahoma on the USGS WaterWatch website.

Identifying Changes in Background Water-Quality Conditions, Arkansas River and Fountain Creek, Colorado

Web based application to compare, on a real-time basis, estimated dissolved-solids concentration and load as a surrogate for water-quality conditions in the Arkansas River and Fountain Creek in Colorado and determine whether future water-quality conditions are significantly different from background conditions.