USGS hydrologists return from measuring streamflow on the Red River in Fargo, N.D. The USGS Red River of the North at Fargo streamgage can be seen on the right in the image.
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USGS Responds to Flooding in Fargo
USGS hydrologists return from measuring streamflow on the Red River in Fargo, N.D. The USGS Red River of the North at Fargo streamgage can be seen on the right in the image.
USGS Responds to Flooding in Fargo
A team of USGS hydrologists and technicians prepares to take an acoustic Doppler current profiler (ADCP) out on the Red River in downtown Fargo, N.D., to measure streamflow during the 2013 flood.
A team of USGS hydrologists and technicians prepares to take an acoustic Doppler current profiler (ADCP) out on the Red River in downtown Fargo, N.D., to measure streamflow during the 2013 flood.
USGS Water Science Strategy: The Water Cycle
Illustration of the water cycle. Prepared by James R. Douglas, USGS. Published in USGS Circular 1383G: USGS Water Science Strategy—Observing, Understanding, Predicting, and Delivering Water Science to the Nation.
Illustration of the water cycle. Prepared by James R. Douglas, USGS. Published in USGS Circular 1383G: USGS Water Science Strategy—Observing, Understanding, Predicting, and Delivering Water Science to the Nation.
Two of the main spring discharge points of Comal springs, Texas
Two of the main spring discharge points of Comal springs, TexasTwo of the main spring discharge points of Comal springs.
A new website now provides important information about streamflow in the Comal and San Marcos Rivers and springflow at Comal and San Marcos Springs.
Two of the main spring discharge points of Comal springs, Texas
Two of the main spring discharge points of Comal springs, TexasTwo of the main spring discharge points of Comal springs.
A new website now provides important information about streamflow in the Comal and San Marcos Rivers and springflow at Comal and San Marcos Springs.
Bear River, Utah
Looking northeast along the Bear River Duck Club Canal toward the Wellsville Mountains.
Looking northeast along the Bear River Duck Club Canal toward the Wellsville Mountains.
Mixing of drill cuttings with absorbent polymer
Mixing of drill cuttings with absorbent polymer prior to shipping and disposal in a secured landfill.
Mixing of drill cuttings with absorbent polymer prior to shipping and disposal in a secured landfill.
Scientists test where methane goes once released into streams
Scientists test where methane goes once released into streamsScientists apply a new method for determining the fate of methane discharged into streams. Here, noble-gas (krypton) is injected using submerged gas-permeable tubing in West Bear Creek, North Carolina.
Scientists test where methane goes once released into streams
Scientists test where methane goes once released into streamsScientists apply a new method for determining the fate of methane discharged into streams. Here, noble-gas (krypton) is injected using submerged gas-permeable tubing in West Bear Creek, North Carolina.
Lake Mead Gorge
Inside look of a gorge in Lake Mead.
Inside look of a gorge in Lake Mead.
Lake Mead
Overlooking Lake Mead.
Evaluating the Fate of Methane Released into Streams
Evaluating the Fate of Methane Released into StreamsScientists apply a new method for determining the fate of methane discharged into streams. Here, gas is injected into stream water along West Bear Creek, North Carolina.
Evaluating the Fate of Methane Released into Streams
Evaluating the Fate of Methane Released into StreamsScientists apply a new method for determining the fate of methane discharged into streams. Here, gas is injected into stream water along West Bear Creek, North Carolina.
Surveying a high-water mark on Liberty Island, after Hurricane Sandy
Surveying a high-water mark on Liberty Island, after Hurricane SandyUSGS hydrologic technician Amy Simonson surveying a high-water mark on Liberty Island, New York after Hurricane Sandy
Surveying a high-water mark on Liberty Island, after Hurricane Sandy
Surveying a high-water mark on Liberty Island, after Hurricane SandyUSGS hydrologic technician Amy Simonson surveying a high-water mark on Liberty Island, New York after Hurricane Sandy
Niskin bottle
Black tape is stretched across the stopper of the 'Niskin' bottle and secured to form a positive pressure seal.
Black tape is stretched across the stopper of the 'Niskin' bottle and secured to form a positive pressure seal.
Humpback Rocks Views
Humpback Rocks Views
Predicted arsenic concentrations in Southwest basin-fill aquifers
Predicted arsenic concentrations in Southwest basin-fill aquifersPredicted concentrations of arsenic in groundwater exceed the Maximum Contaminant Level (MCL) of 10 μg/L in 43 percent of the areal extent of the four Southwest basin-fill aquifers.
Predicted arsenic concentrations in Southwest basin-fill aquifers
Predicted arsenic concentrations in Southwest basin-fill aquifersPredicted concentrations of arsenic in groundwater exceed the Maximum Contaminant Level (MCL) of 10 μg/L in 43 percent of the areal extent of the four Southwest basin-fill aquifers.
An Appalachian Mountain Stream in the Spring
An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin
An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin
USGS Water towers
USGS Water towers at Upper Midwest Environmental Sciences Center
USGS Water towers at Upper Midwest Environmental Sciences Center
2012 SPARROW Models for the Midwest
2012 SPARROW Models for the Midwest: Total Phosphorus, Total Nitrogen, Suspended Sediment, and Streamflow
2012 SPARROW Models for the Midwest: Total Phosphorus, Total Nitrogen, Suspended Sediment, and Streamflow
Sampling a shallow monitoring well representing agricultural land use
Sampling a shallow monitoring well representing agricultural land useUSGS collects groundwater from shallow monitoring wells beneath agricultural and urban areas to assess the effects of these activities on recently recharged groundwater as part of the National Water Quality Network (NWQN).
Sampling a shallow monitoring well representing agricultural land use
Sampling a shallow monitoring well representing agricultural land useUSGS collects groundwater from shallow monitoring wells beneath agricultural and urban areas to assess the effects of these activities on recently recharged groundwater as part of the National Water Quality Network (NWQN).
Phosphorus Filter
Tom Kehler, fishery biologist at the U.S.
Tom Kehler, fishery biologist at the U.S.
Dried Acid Mine Drainage Residuals
Dried acid mine drainage residuals that are formed during treatment of the drainage. The USGS has pioneered a new use for these residuals that are currently a disposal challenge, using them to filter phosphorus from agricultural and municipal wastewaters.
Dried acid mine drainage residuals that are formed during treatment of the drainage. The USGS has pioneered a new use for these residuals that are currently a disposal challenge, using them to filter phosphorus from agricultural and municipal wastewaters.
Liberty State Park
Liberty State Park, Jersey City, NJ; Chad Ostheimer surveying a high-water mark left October 29, 2012 by Hurricane Sandy.
Liberty State Park, Jersey City, NJ; Chad Ostheimer surveying a high-water mark left October 29, 2012 by Hurricane Sandy.