Water Resources

Techniques and Methods

Filter Total Items: 32
Date published: April 27, 2021
Status: Active

Integrated Water Science (IWS) Basins

The U.S. Geological Survey is integrating its water science programs to better address the Nation’s greatest water resource challenges. At the heart of this effort are plans to intensively study at least 10 Integrated Water Science (IWS) basins — medium-sized watersheds (10,000-20,000 square miles) and underlying aquifers — over the next decade. The IWS basins will represent a wide range of...

Attribution: Water Resources
Date published: April 27, 2021
Status: Active

Next Generation Water Observing System (NGWOS)

Substantial advances in water science, together with emerging breakthroughs in technical and computational capabilities, have led the USGS to develop a Next Generation Water Observing System (NGWOS). The USGS NGWOS will provide real-time data on water quantity and quality in more affordable and rapid ways than previously possible, and in more locations.

Date published: March 30, 2020
Status: Active

Atmospheric Warming, Loss of Snow Cover, and Declining Colorado River Flow

Declining snow cover is playing a key role in decreasing the flow of the Colorado River, “the lifeblood of the Southwest,” by enabling increased evaporation. As the warming continues, increasingly severe water shortages are expected. 

Attribution: Water Resources
Date published: March 4, 2019
Status: Active

National Water Quality Laboratory (NWQL)

Offering a wide-range of environemental analytical services, the U.S. Geological Survey (USGS) National Water Quality Laboratory (NWQL) is a world-class environmental analysis and research laboratory located on the campus of the Denver Federal Center in Lakewood, Colorado.

Date published: March 4, 2019
Status: Active

Integration of sUAS into Hydrogeophysical Studies

The USGS is evaluating the integration of small unoccupied aircraft systems – sUAS or "drones" –  into USGS hydrogeophysical studies.

Contacts: Cian Dawson
Attribution: Water Resources
Date published: March 4, 2019
Status: Active

StreamStats: Streamflow Statistics and Spatial Analysis Tools for Water-Resources Applications

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.

Attribution: Water Resources
Date published: March 4, 2019
Status: Active

MODFLOW and Related Programs

MODFLOW is the USGS's modular hydrologic model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions. MODFLOW 6 is presently the core MODFLOW version distributed by the USGS. The previous core version, MODFLOW-2005, is actively maintained and supported as well.

Attribution: Water Resources
Date published: March 4, 2019
Status: Active

National Water-Quality Assessment (NAWQA)

Our surface water, groundwater, and aquatic ecosystems are priceless resources, used by people across the Nation for drinking, irrigation, industry, and recreation. The National Water-Quality Assessment (NAWQA) Project is a leading source of scientific data and knowledge for development of science-based policies and management strategies to improve and protect our water resources.

Contacts: Mindi Dalton
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.  Interactive, online SPARROW mapping tools allow for easy access to explore relations between human activities, natural processes...

Date published: March 3, 2019
Status: Active

Sediment Surrogate Techniques

USGS develops and uses “surrogate” techniques to estimate sediment at times when it can’t be physically measured through samples.

Contacts: Molly S Wood
Attribution: Water Resources
Date published: March 3, 2019
Status: Active

Sediment Sampling and Data Processing

USGS collects sediment samples at thousands of locations across the U.S. using nationally consistent methods.

Contacts: Molly S Wood
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