Images

Northward view towards Camden Bay from west-central Arctic National Wildlife Refuge-1002 Area near the Katakturuk River. Patterns in foreground are permafrost polygons.

View to the northeast towards Camden Bay from west-central Arctic National Wildlife Refuge-1002 Area. The tundra and lakes in this area displays a variety of patterns caused by permafrost.

Northward view to coast of Canning River Delta with thin barrier island and ice pack beyond.

Northward view in central Arctic National Wildlife Refuge-1002 Area near the Sadlerochit River showing gently rolling topography typical of the southern coastal plain.

Closeup view of oil-saturated Oligocene sandstone in the Sagavanirktok Formation exposed on Marsh Creek anticline near Katakturuk River in western Arctic National Wildlife Refuge-1002 Area. Weathered surface is light gray and freshly broken surface is brown.

Assessing the variability of arsenic over multiple time scales project.

Collection samples hourly at a private domestic bedrock well, Seabrook, New Hampshire.

Color-shaded topographic relief map of the Yellowstone Plateau-Snake River Plain volcanic province showing the track of the Yellowstone hot spot. 

Contrasting photos of Heart Spring on Geyser Hill in the Upper Geyser Basin from 1998 (left) and 2019 (right). Can you spot differences in the hot spring? Photos courtesy of the National Park Service.

Photograph of custom boogie board for ADCP deploymet, view of bottom.

Photograph of custom boogie board for ADCP deploymet, view of bottom.

Photograph of custom boogie board for ADCP deploymet, view of bottom.

Dr. Christine Densmore, DVM uses an ultrasound on fish as part of a health assessment.

A sample of the digital elevation model from the 2019 LiDAR survey of Kīlauea, showing the vicinity of the former HVO office and Jaggar Museum in Hawaiʻi Volcanoes National Park.

Earth MRI - Common Uses of Rare Earth Elements

Earth MRI - Forty mile River Watershed

Earth MRI - High Grade Rare Earth Elements Bearing Phosphorite

Earth MRI - Rare Earth Elements Deposit

Earth MRI Geologic map of the Castle Rock quadrangle AZ

Prototype design of an airlift developed at CAFL to transport downstream migrant eels through a bypass pipe and away from turbine intakes. The airlift design passes eels as well as a conventional siphon or gravity pipe.

Left: Prototype ABS plastic eel climbing ramp under development and testing at CAFRL. New substrate design allows for passage of a wider size range of eels with less need for precise flow regulation. Right: juvenile eel climbing wetted ABS plastic substrate.

Apparatus used to test the sensitivity of eels to low-voltage pulsed DC electric fields. Knowledge of sensitivity of eels to electric fields enables development of behavioral barriers that use electricity to guide eels away from turbine intakes.