Skip to main content
U.S. flag

An official website of the United States government

Web Tools

Check out web tools that include alert and notification services, data access, data analysis, data visualizations, digital repositories, and interactive maps.

APIs

APIs

Data Access Tools

Data Access Tools

Data Analysis Tools

Data Analysis Tools

Data Visualizations

Data Visualizations

Digital Repositories

Digital Repositories

Interactive Maps

Interactive Maps

All Web Tools

Filter Total Items: 577

Federal Lands Emissions and Sequestration in the United States: Estimates 2005-14

This website is a data visualization companion to the U.S. Geological Survey (USGS) report titled Federal Lands Greenhouse Gas Emissions and Sequestration in the United States: Estimates 2005-14. The maps and charts on this site include the estimated emissions and sequestration from both fossil fuel activities and ecosystem processes on Federal lands only.

Hydrologic Conditions of Selected Reservoirs in Puerto Rico

The following graphs show water surface elevations above NGVD 1929 in selected reservoirs for several years, including 2015. The purpose of these graphs is to compare water surface elevations during 2015 with water surface elevations observed during years when documented droughts have occurred.

Water Level and Salinity Analysis Mapper

The Water Level and Salinity Analysis Mapper is designed to conduct automated statistical and graphical analyses on water-level and salinity data collected from sites monitored by the U.S. Geological Survey (USGS) in South Florida.

Assessment of Groundwater Quality in the Borrego Valley

The quality of groundwater in the Borrego Valley is a concern because it is the sole source of water for agricultural, recreational, and public supply. Explore the interactive water-quality data map for detailed information and to download data.

Multi-Resolution Land Characteristics Consortium (MRLC) Viewer

The Multi-Resolution Land Characteristics (MRLC) consortium is a group of federal agencies who coordinate and generate consistent and relevant land cover information at the national scale for a wide variety of environmental, land management, and modeling applications.

The HayWired Scenario: An Urban Earthquake in a Connected World

A geonarrative (Esri Story Map) describing what it might be like the next time the Hayward fault has a large earthquake. Scientists examined a hypothetical earthquake, the magnitude 7.0 HayWired earthquake scenario.

Drought & Groundwater in California

Long-term groundwater-level data are fundamental to the resolution of problems dealing with groundwater availability and sustainability. Significant periods of time typically are required to collect water-level data needed to assess the effects of climate variability, to monitor the effects of regional aquifer development, or to obtain data sufficient for analysis of water-level trends.

Runoff Estimates for California

Streams, rivers, lakes and reservoirs are important natural resources for irrigation, public supply, wetlands and wildlife.  Excess precipitation that flows into these sources is called runoff, and it's an important drought indicator.  The California Water Science Center tracks both monthly and annual runoff. 

Drought & Surface Water in California

Careful observation and analysis of the movement and condition of surface water is essential for understanding this resource, especially during times of drought. The California Water Science Center uses a network of more than 500 streamgages to collect real-time data on surface water at locations across the state.

EDNA Watershed Atlas

The EDNA Watershed Atlas contains watershed characteristics for major named rivers of the contiguous U.S. including maps, images, legends, and statistics derived from the EDNA Watershed Characteristics model.

San Antonio Creek Valley Hydrologic Monitoring

In order to understand the integrated hydrologic systems in the San Antonio Creek Valley, many different types of data are being gathered from both the surface water and groundwater system. Learn about these data types and explore them with the interactive map.

California Groundwater Model Archive

The USGS models shown on this site are in the public domain, and are freely available. They are based on MODFLOW and other public-domain USGS software. Links to publications and web resources associated with each model are shown in the table next to the model map. The associated model files for some of these models are currently available via download.