Sheridan River sonar
Images
Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
George Durner collecting data on an anesthetized polar bear
George Durner collecting data on an anesthetized polar bearGeorge Durner collecting data on an anesthetized polar bear
George Durner collecting data on an anesthetized polar bear
George Durner collecting data on an anesthetized polar bearGeorge Durner collecting data on an anesthetized polar bear
Sheridan River scour hole
Sheridan River scour hole
The Advanced National Seismic System (ANSS) structural monitoring system in the 20- story Atwood Building is one of the most sophisticated systems in the country. Sensors are deployed on the parking and street levels, the electrical and mechanical levels, the roof level, and the 2nd, 7th, 8th, 13th, 14th, and 19th floors.
The Advanced National Seismic System (ANSS) structural monitoring system in the 20- story Atwood Building is one of the most sophisticated systems in the country. Sensors are deployed on the parking and street levels, the electrical and mechanical levels, the roof level, and the 2nd, 7th, 8th, 13th, 14th, and 19th floors.
The Robert Atwood building sensors are complemented by the Delaney Park borehole array. This array of buried, three-component sensors in six boreholes ranging in depth from 15 to 200 feet (5–60 meters), with a seventh sensor at the surface.
The Robert Atwood building sensors are complemented by the Delaney Park borehole array. This array of buried, three-component sensors in six boreholes ranging in depth from 15 to 200 feet (5–60 meters), with a seventh sensor at the surface.
Steller's Eider in Dutch Harbor, Alaska
Steller's Eider in Dutch Harbor, Alaska
Black Scoter: Dutch Harbor, Alaska
Black Scoter: Dutch Harbor, Alaska
Pacific sand lance in Prince William Sound next to a ruler
Pacific sand lance in Prince William Sound next to a rulerPacific sand lance in Prince William Sound next to a ruler
Pacific sand lance in Prince William Sound next to a ruler
Pacific sand lance in Prince William Sound next to a rulerPacific sand lance in Prince William Sound next to a ruler
A Pacific sand lance, Pacific herrring and a capelin
A Pacific sand lance, Pacific herrring and a capelinA Pacific sand lance, Pacific herrring and a capelin in Prince William Sound, Alaska
A Pacific sand lance, Pacific herrring and a capelin
A Pacific sand lance, Pacific herrring and a capelinA Pacific sand lance, Pacific herrring and a capelin in Prince William Sound, Alaska
A catch of Pacific sandlance, capelin and other forage fish
A catch of Pacific sandlance, capelin and other forage fishA catch of Pacific sandlance, capelin and other forage fish
A catch of Pacific sandlance, capelin and other forage fish
A catch of Pacific sandlance, capelin and other forage fishA catch of Pacific sandlance, capelin and other forage fish
Northern Pintail pair on water. Photo taken on the Copper River Delta, Alaska. Northern Pintails, a duck species that, in Alaska, nests throughout the state and in adjacent regions of Russia and Canada.
Northern Pintail pair on water. Photo taken on the Copper River Delta, Alaska. Northern Pintails, a duck species that, in Alaska, nests throughout the state and in adjacent regions of Russia and Canada.
Emperor geese standing at the shoreline near Kodiak
Emperor geese standing at the shoreline near KodiakEmperor geese standing at the shoreline near Kodiak.
Emperor geese standing at the shoreline near Kodiak
Emperor geese standing at the shoreline near KodiakEmperor geese standing at the shoreline near Kodiak.
The 20-story Robert Atwood Government Building in downtown Anchorage, built in 1982, is the most fully instrumented building yet monitored by the Advanced National Seismic System.
The 20-story Robert Atwood Government Building in downtown Anchorage, built in 1982, is the most fully instrumented building yet monitored by the Advanced National Seismic System.
Scientist holding a Grey-cheeked Thrush
Scientist holding a Grey-cheeked Thrush
Steller's Eiders in Izembek Lagoon. Isanotski Volcano in background
Steller's Eiders in Izembek Lagoon. Isanotski Volcano in backgroundSteller's Eiders in Izembek Lagoon. Isanotski Volcano in background
Steller's Eiders in Izembek Lagoon. Isanotski Volcano in background
Steller's Eiders in Izembek Lagoon. Isanotski Volcano in backgroundSteller's Eiders in Izembek Lagoon. Isanotski Volcano in background
Nearly 200 male walruses resting on shore at Cape Seniavin along the shores of southern Bristol Bay
Nearly 200 male walruses resting on shore at Cape Seniavin along the shores of southern Bristol Bay
Black-capped Chickadee with upper long, curved down beak and crossed
Black-capped Chickadee with upper long, curved down beak and crossedBlack-capped Chickadee with upper long, curved down beak and crossed. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Black-capped Chickadee with upper long, curved down beak and crossed
Black-capped Chickadee with upper long, curved down beak and crossedBlack-capped Chickadee with upper long, curved down beak and crossed. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Clams layed out on a piece of plywood as part of a sea otter forage survey in Glacier Bay National Park and Preserve.
Clams layed out on a piece of plywood as part of a sea otter forage survey in Glacier Bay National Park and Preserve.
Pacific brant family on the Yukon-Kuskokwim Delta, Alaska.
Pacific brant family on the Yukon-Kuskokwim Delta, Alaska.
Results from a trawl run in Kuskokwim Bay. Mostly juvenile chum salmon and one stickleback.
Results from a trawl run in Kuskokwim Bay. Mostly juvenile chum salmon and one stickleback.