Images

Damaged pier from effects of Hurrican Sandy on Long Island, NY.

This ADCP sends an acoustic pulse into the water to measure the speed of the water, the depth of the river and to measure how far it's moved across the river. With this information, it can compute discharge.

A manned boat is used to ferry the ADCP back and forth across the river. The velocities at this section were quite slow, and the line across the river allowed better control than driving the small boat.

Another view of the manned boat, with ADCP attached.

This is the cross section where the measurement was made and the line we strung across the river, marked with flagging for visibility. In slow velocities, the line helps control the speed of the boat as it is moved across the channel.

This is the view downstream of the cross section.

This is the view upstream of the cross section.

Sediment sampling off the coast of Long Island, NY.

Hydrologic Technician taking a streamgage measurement at USGS 01104415 in the Cambridge Reservoir Watershed, Massachusetts.

NYWSC scientist collecting groundwater samples

Indiana Harbor Canal at East Chicago, IN - ADCP measurement - Moriah Will

Indiana Harbor Canal at East Chicago, IN - walk bridge

Indiana Harbor Canal at East Chicago, IN - measurement - Andy Gorman

Investigators prepare to place a Shallow Water Irradience Platform (SWIP) at a site in Barnegat Bay, NJ.

USGS research supports wetland conservation as critical habitat, Cape Cod, MA

Equipment used for a measuring lateral fluxes over tidal cycle

USGS and Summer Interns from the Partnership Education Program (PEP) program sampling over a tidal cycle.

As schools close for the year and summer weather beckons, many recreationalists head to the Great Lakes' public beaches. However, these coastal areas can become contaminated with disease-causing bacteria that threaten public health, disrupt water recreation, and pay a toll on the Great Lakes economies that depend on summer tourism.

A sensor is deployed to measure flow in a channel of the marsh in Rachel Carlson National Wildlife Refuge in 2013.

View looking east from the Virginia Blue Ridge across the Rock Castle Creek gorge to the rolling hills of the Piedmont.

Huron River at Milan, OH - downstream of gage