Water Resources

Filter Total Items: 357
Date published: March 4, 2019
Status: Active

SPARROW modeling: Estimating nutrient, sediment, and dissolved solids transport

SPARROW (SPAtially Referenced Regression On Watershed attributes) models estimate the amount of a contaminant transported from inland watersheds to larger water bodies by linking monitoring data with information on watershed characteristics and contaminant sources. Explore relations between human activities, natural processes, and contaminant transport using interactive Mappers.

Date published: March 3, 2019
Status: Active

Streamgaging Basics

A streamgage is a structure installed beside a stream or river that contains equipment that measures and records the water level (called gage height or stage) of the stream. Streamflow (also called discharge) is computed from measured water levels using a site-specific relation (called a stage-discharge rating curve) developed from onsite water level and streamflow measurements made by USGS...

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Federal Priority Streamgages (FPS)

Federal Priority Streamgages (FPS) are monitoring stations that track the amount of water in streams and rivers across the Nation and that meet one or more strategic, long-term Federal information needs. FPS are strategically positioned across the Nation to serve, in part, as a “backbone” for the larger USGS streamgaging network that is operated by the USGS in cooperation with over 1,400...

Date published: March 3, 2019
Status: Active

USGS Streamgages By the Numbers

Get the facts and figures about the USGS Streamgaging Network, one of the largest streamgaging enterprises in the world!

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Hydroacoustics

Since the early 1980s the USGS has worked cooperatively with manufacturers to develop and enhance the use of acoustic Doppler instruments for streamflow and other hydraulic measurements. This site provides information on hydroacoustic technology, instruments, and their use.

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Nutrients and Eutrophication

Like people, plants need nutrients, but too much of a good thing can be a problem. Nutrients, such as nitrogen and phosphorus, occur naturally, but most of the nutrients in our waterways come from human activities and sources—fertilizers, wastewater, automobile exhaust, animal waste. The USGS investigates the source, transport, and fate of nutrients and their impacts on the world around us....

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Drinking Water and Source Water Research

Reliable drinking water is vital for the health and safety of all Americans. The USGS works with drinking water facilities and municipal suppliers to monitor and assess the quality of the water used as a source for our nation's drinking water needs.

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Urban Land Use and Water Quality

Wherever you live, there’s a creek or stream near you. The eighty percent of Americans who live in metropolitan areas are often unaware of the network of urban creeks—many teeming with life—that weaves through our cities and town. Nowhere are the environmental changes associated with urban development more evident than in urban streams.

Contacts: Barbara Mahler
Date published: March 3, 2019
Status: Active

NWQP Water-Quality Topics

From chloride to corrosivity, from pesticides to PAHs, find the most recent National Water Quality Program (NWQP) science on these topics and effects on surface water, groundwater, and ecology.  Informative web pages provide an overview and links to related web pages, publications, maps, news, and data.

Contacts: Barbara Mahler
Date published: March 3, 2019
Status: Active

Integration of sUAS into Hydrogeophysical Studies: Technology Demonstration and Evaluation

The USGS is evaluating the integration of small unoccupied aircraft systems – sUAS or "drones" –  into USGS hydrogeophysical studies. The following projects are part of a Water Resources Mission Area demonstration and evaluation effort in collaboration with USGS Water Science Centers (WSCs) starting in June 2018.

Contacts: Cian Dawson
Date published: March 3, 2019
Status: Active

Data Science for Water Resources

Data scientists in the USGS Water Resources Mission Area make sense of large environmental and operational datasets by applying various modeling, statistical, and visualization techniques to generate actionable information.

Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Hydrologic and Erosion Responses of Burned Watersheds

The enhanced probability of catastrophic wildfires has increased our need to understand the risk of floods, erosion, and debris and contaminant transport in burned watersheds. This project investigates the relation between rainfall intensity and peak discharge; erosion and deposition processes; and water-quality impacts to minimize the loss of life and property resulting from post-wildfire...

Attribution: Water Resources