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Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.

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A woman wearing a lab coat and rubber gloves places a long plastic tube on a narrow storage shelving unit.
Storing sediment core D-tubes
Storing sediment core D-tubes
Storing sediment core D-tubes

We slip split cores into a labeled D-tube, and both are stored on specialized core racks in a walk-in sample refrigerator. USGS and non-USGS scientists often use our core and sample archives for new research. Contact the lab manager for access policies and other details.

We slip split cores into a labeled D-tube, and both are stored on specialized core racks in a walk-in sample refrigerator. USGS and non-USGS scientists often use our core and sample archives for new research. Contact the lab manager for access policies and other details.

A person wearing rubber gloves and lab coat holds a spatula and plastic sample bag, ready to take a sample from a sediment core.
Subsampling a sediment core
Subsampling a sediment core
Subsampling a sediment core

Sediment cores may be subsampled for further processing and analysis in other labs, like the Sediment Lab which is across the hall from the Core Lab.

Sediment cores may be subsampled for further processing and analysis in other labs, like the Sediment Lab which is across the hall from the Core Lab.

A woman in a lab coat holds a tall plastic cylinder with murky water in it, and a sampling device to take a small amount out.
Subsampling the suspended sediment sample
Subsampling the suspended sediment sample
Subsampling the suspended sediment sample

Lab technician Angela Tan takes a sample of the sediment suspended in liquid, for analysis in one of several ways.

A woman in a lab coat stands in front of an apparatus with a thin cylindrical glass tube attached to flexible plastic tubing.
Total inorganic carbon content analyzer
Total inorganic carbon content analyzer
Total inorganic carbon content analyzer

The UIC CM5230/CM5015 analyzes total inorganic carbon content. It's less automated than other analyzers, but often easier to use.

A woman wearing a lab coast and rubber gloves stretches a piece of plastic wrap over an exposed sediment core on a lab table.
Wrapping a sediment core half
Wrapping a sediment core half
Wrapping a sediment core half

Each half of a split sediment core is wrapped in plastic to prevent drying and contamination. For long-term storage, we can shrink-wrap one half with a thick film that prevents moisture loss.

Each half of a split sediment core is wrapped in plastic to prevent drying and contamination. For long-term storage, we can shrink-wrap one half with a thick film that prevents moisture loss.

A woman in a lab coat stands in front of a machine operating a turnstile with a beaker in it.
X-ray particle-size analysis of sediment settling rates
X-ray particle-size analysis of sediment settling rates
X-ray particle-size analysis of sediment settling rates

The Micromeritics Sedigraph III uses X-rays to automatically analyze settling times for sediment sizes between 300 microns and 0.1 microns (2 phi to 13 phi).

Photo of scientist climbing an island off the coast of Big Sur
WERC Big Sur Deployment
WERC Big Sur Deployment
WERC Big Sur Deployment

Scientists from the USGS Western Ecological Research Center deploy to Big Sur to study seabird populations.

Scientists from the USGS Western Ecological Research Center deploy to Big Sur to study seabird populations.

Andrew Stevens runs a personal watercraft rigged with sonar and precision GPS to survey northern Monterey Bay
Andrew Stevens runs a personal watercraft rigged with sonar and precis
Andrew Stevens runs a personal watercraft rigged with sonar and precis
Andrew Stevens runs a personal watercraft rigged with sonar and precis

Andrew Stevens runs a personal watercraft rigged with sonar and precision GPS to survey northern Monterey Bay, California.

USGS researchers stay in radio contact with a personal watercraft operator offshore
USGS researchers stay in radio contact with a PWC operator
USGS researchers stay in radio contact with a PWC operator
USGS researchers stay in radio contact with a PWC operator

Alex Snyder (left) and SeanPaul La Selle stay in radio contact with a personal watercraft operator offshore in order to provide supplies and safety near Moss Landing, California. 

Alex Snyder (left) and SeanPaul La Selle stay in radio contact with a personal watercraft operator offshore in order to provide supplies and safety near Moss Landing, California. 

bridge over Mohawk River at Lock 8 dam
Mohawk River at Lock 8 near Schenectady (01354330)
Mohawk River at Lock 8 near Schenectady (01354330)
Dan Hoover takes a break near Moss Landing, California
Dan Hoover takes a break near Moss Landing, California
Dan Hoover takes a break near Moss Landing, California
Dan Hoover takes a break near Moss Landing, California

Dan Hoover takes a break near Moss Landing, California. Dan drives the all-terrain vehicle seen behind him to rapidly survey long sections of beach using precision GPS. 

Dan Hoover takes a break near Moss Landing, California. Dan drives the all-terrain vehicle seen behind him to rapidly survey long sections of beach using precision GPS. 

Shelving that has many bags, tubes, and boxes filled with sand and mud.
Refrigerated sample storage shelving
Refrigerated sample storage shelving
Refrigerated sample storage shelving

The refrigerated sample repository of the USGS Pacific Coastal and Marine Science Center in Santa Cruz, CA includes easily accessible shelving space which can store thousands of samples.

The refrigerated sample repository of the USGS Pacific Coastal and Marine Science Center in Santa Cruz, CA includes easily accessible shelving space which can store thousands of samples.

Shawn Harrison surveys beach topography using a backpack equipped with precision GPS at Zmudowski State Beach, California
Shawn Harrison surveys beach topography using a backpack
Shawn Harrison surveys beach topography using a backpack
Shawn Harrison surveys beach topography using a backpack

Shawn Harrison surveys beach topography using a backpack equipped with precision GPS at Zmudowski State Beach, California. The fog-shrouded Moss Landing Power Plant looms in the background. 

Shawn Harrison surveys beach topography using a backpack equipped with precision GPS at Zmudowski State Beach, California. The fog-shrouded Moss Landing Power Plant looms in the background. 

USGS hydrologic technician collecting data with ADCP from a cableway
USGS hydrologic technician collecting data with ADCP from a cableway
USGS hydrologic technician collecting data with ADCP from a cableway
USGS hydrologic technician collecting data with ADCP from a cableway

USGS hydrologic technician Michael Allen collects streamflow data from the Boise River at streamgage station 13206000 using an acoustic Doppler current profiler.

Jackson Currie maps ocean depths using a personal watercraft equipped with precision GPS and sonar near Capitola, California
USGS researcher maps ocean depths using a PWC with GPS and sonar
USGS researcher maps ocean depths using a PWC with GPS and sonar
USGS researcher maps ocean depths using a PWC with GPS and sonar

Jackson Currie maps ocean depths using a personal watercraft equipped with precision GPS and sonar near Capitola, California

USGS researchers adjust a computer controlling video cameras on the roof of the Dream Inn
USGS researchers adjust a computer and video cameras on a roof
USGS researchers adjust a computer and video cameras on a roof
USGS researchers adjust a computer and video cameras on a roof

Gerry Hatcher (left) and Shawn Harrison adjust a computer controlling video cameras on the roof of the Dream Inn, a 10-story hotel overlooking Monterey Bay in Santa Cruz, California. Harrison uses the images to improve understanding and computer modeling of beach processes. 

Gerry Hatcher (left) and Shawn Harrison adjust a computer controlling video cameras on the roof of the Dream Inn, a 10-story hotel overlooking Monterey Bay in Santa Cruz, California. Harrison uses the images to improve understanding and computer modeling of beach processes. 

USGS researchers are ready to install moorings in Wellfleet, Massachusetts
USGS researchers are ready to install moorings in Wellfleet, Mass.
USGS researchers are ready to install moorings in Wellfleet, Mass.
USGS researchers are ready to install moorings in Wellfleet, Mass.

Dann Blackwood, Jon Borden, and Steve Suttles of USGS ready to install moorings in Wellfleet, Massachusetts. USGS scientists measure water velocity, water quality, suspended sediment, and many other values to improve computer models of wetland changes in coastal National Park Service units, including Cape Cod National Seashore.

Dann Blackwood, Jon Borden, and Steve Suttles of USGS ready to install moorings in Wellfleet, Massachusetts. USGS scientists measure water velocity, water quality, suspended sediment, and many other values to improve computer models of wetland changes in coastal National Park Service units, including Cape Cod National Seashore.

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