Images

Field crew on Bob Allen Key in Florida Bay, Everglades National Park, April 14, 2014, conferring on next steps near core sites marked with orange flags.  The mangroves that form the islands’ perimeter are to the left and in the background.

In Photo: View south/southeast along eastern shoreline in April 2014 shows a dense berm of mangrove trees.  The bay is not visible. 

Irrigation method in Santa Isabel, PR

USGS diver taking a core of a 100-year-old coral to allow reconstruction of past ocean temperatures in St. Thomas, U.S. Virgin Islands.

USGS and FWS working together at Lake Mattamuskeet

Bird watching on the Quebrada Margarita at Río Piedras, Puerto Rico

Hydrologist calibrating a station at Lake Mattamuskeet

Hydrologist servicing a station on Lake Mattamuskeet

Scientists 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 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. 

Manatee swims in a Florida spring

An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

Sand dunes in Avon on Cape Hatteras, NC are the only separation between many beach house communities and the Atlantic Ocean. 

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

USGS researcher collects data on manatee in Florida spring.

Photo of Sunset Beach, Florida, during tropical storm Colin in June 2016. The storm resulted in large waves and elevated water levels that caused erosion in this area, as can be seen in the scarp forming at the vegetation line. CMHRP researchers surveyed the elevation of the beach before and after the storm to quantify the storm's impacts.

Panoramic view (~270 degrees) looking across the Blue Ridge of Virginia, North Carolina and Tennessee (from left to right).  The Valley and Ridge is in the distance (gap between mountains). 

Radium Springs, Georgia, during drought conditions.

Landscape view Lake Mattamuskeet, North Carolina

► Project: Continuous Water-Quality Monitoring at Lake Mattamuskeet, North Carolina