Images

A long-tailed duckling. This species was studied as part of research by the USGS and partners to identify the frequencies at which sea ducks can hear underwater.

Two common eider ducklings. This species was studied as part of research by the USGS and partners to identify the frequencies at which sea ducks can hear underwater.

USGS research geophysicist Danny Brothers (right) and colleagues examine the surface of a sediment grab sample just pulled onto the deck of the Canadian Coast Guard Ship John P. Tully. The sample was collected from the top of a mud volcano north of the border between southeast Alaska and British Columbia.

Soil burn severity for the Eagle Creek Fire, Oregon (2017). Soil burn severity is used for postfire assessments to determine flash flooding and postfire debris flow potential for a recently burned area.

Fog surrounds the USGS Research Vessel Arcticus as it comes into port at Sturgeon Bay, Wisconsin.

Scientists prepare to lower a piston corer off Haida Gwaii, British Columbia, to sample seafloor sediment near the Queen Charlotte-Fairweather fault. Expedition scientists are studying layers of sediment in the cores they collected to identify and determine ages of past earthquakes along the fault.

A USGS specialist installs a storm-tide sensor in Massachusetts before Hurricane Jose's arrival.  

Mary McGann (left, USGS) and Rachel Lauer (University of Calgary) sample pore fluids from sediment cores collected aboard the Canadian Coast Guard Ship John P. Tully along the Queen Charlotte-Fairweather fault offshore of southeast Alaska.

Map of target areas to be surveyed during the first phase of the 
Deepwater Atlantic Habitats II study,  DEEP SEARCH, including seep targets. USGS image.

Map of target areas to be surveyed during the first phase of the Deepwater Atlantic Habitats II study, 
DEEP SEARCH, including seep targets. USGS image.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Harvey in Matagorda County, Texas.

That photo is of Atlantic Avenue in Garden City, South Carolina on September 11.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist Steve Hannes marks high water marks along the Colorado River after flooding from Hurricane Harvey in Wharton County, Texas.

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 

USGS scientist David Rodriguez records high water marks from storm surge near Corpus Christi, Texas. 

USGS scientist Alec McDonald surveying high water marks from storm surge from Hurricane Harvey at Packery Channel near Corpus Christi, Texas.

USGS scientist Vidal Mendoza surveying high water marks from storm surge from Hurricane Harvey near Port Aransas, Texas.

Jim Duda, USGS hydrologic technician, installs a Rapid-Deployment Gauge near the Elizabeth River in Norfolk, Virginia, to monitor elevated water levels caused by Hurricane Jose. An RDG is a fully functional streamgage designed to be quickly deployed for real-time data monitoring of a stream or river in emergency situations.

A USGS field crew takes water-quality samples on Lake Houston following Harvey.