Images

The Colorado River in Grand Canyon taken from Grand Canyon Village, Arizona. 

A helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids, Iowa, as part of a groundwater survey in May 2017.

USGS employee Aaron Walsh performing wire weight measurement in record flood at gage 7018500 Big River at Byrnesville, MO

A helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids, Iowa, as part of a groundwater survey in May 2017.

Shenandoah mobile laboratory fathead minnow experiment station

USGS hydrologic technician measures floodwaters along Flat Creek near Jenkins, Missouri using an Acoustic Doppler Current Profiling instrument. 

USGS hydrologic technician Christopher Rowden verifies the accuracy of streamgage information at the Jacks Fork River at Eminence, Missouri.

Research Hydrologist Neil Terry (USGS) collects ground-penetrating radar (GPR) data along an oil pipeline in Alaska. (April 2017)

USGS scientists are working alongside University researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. View down the oil pipeline through one April 2017 study area. (April 2017)

Research Hydrologist Martin Briggs (USGS) tows ground-penetrating radar (GPR) during field work in Alaska. (April 2017)

Research Hydrologist Martin Briggs (USGS) collects ground-penetrating radar (GPR) data. He is wearing special ice cleats on his shoes to have better traction walking on the ice. (April 2017)

Helicopters are often used to carry scientists and equipment to remote study areas in Alaska. In this photo, a ground-penetrating radar (GPR) unit is securely strapped to the side of the helicopter. (April 2017)

USGS Research Geophysicist Andy Kass (left, in orange) adjusts surface nuclear magnetic resonance equipment (NMR) with input from collaborators Eliot Grunewald (Vista Clara), Alex Huryn (University of Alabama), and Patrick Hendrickson (University of Colorado). NMR is being used to measure the distribution of liquid water in the subsurface. (April 2017)

Phenolic mount used to deploy an RDI ChannelMaster 600kHz ADVM.  Mount is resistant to corrosion and is articulated to allow adjustment of heading, pitch, and roll.

Borehole logging

USGS gage 11289650 Toulumne River Below LaGrange Dam Near LaGrange CA

Phenolic mount used to deploy an RDI ChannelMaster 600kHz ADVM.  Mount is resistant to corrosion and is articulated to allow adjustment of heading, pitch, and roll.

USGS scientists taking water quality measurements in San Francisco Bay aboard the Research Vessel Peterson.

USGS groundwater well 182048064430400.

Scientists from the USGS Albuquerque Field Office use an ADCP mounted on a remotely-controlled Q boat to measure the streamflow of the Rio Grande near Bosque Farms. Use of the Q boat allows our hydro techs to safely and quickly respond to flood events that may threaten the public.

USGS gage 13011500 PACIFIC CREEK AT MORAN WY from the Dakota Water Science Center during winter 2017 with River in background.