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Polar bear family at a whale bone pile near Kaktovik, Alaska
April 20, 2016

Polar bear family at a whale bone pile near Kaktovik, Alaska

Polar bear family at a whale bone pile near Kaktovik, Alaska

ALASKA IFSAR DEM
April 19, 2016

Alaska IfSAR DEM Scene

Shaded relief image of Digital Elevation Model of glaciated area in Alaska.

Andy Parsekian with the TEM geophysical instrument and the 40 meters loops in the distance.
April 19, 2016

Andy Parsekian with the TEM geophysical instrument and the 40 meters loops in the distance.

Andy Parsekian with the TEM geophysical instrument and the 40 meters loops in the distance.

Attribution: Alaska
Two men looking at equipment
April 19, 2016

Field Work - Scientists and Air-Quality Monitoring

Alaska Volcano Observatory scientist Mark Hansen working with Larsen Bay Mayor David Harmes on how the AVO-4 particulate monitor operates.

Scour under a bridge on the Kenai Peninsula
April 19, 2016

Scour under a bridge on the Kenai Peninsula

Scour under a bridge on the Kenai Peninsula in 2002.

Geologist doing field work in Alaska
April 14, 2016

Geologist and Helicopter

Geologist doing field work in Alaska

USGS biologist Gretchen Roffler weighs a newborn caribou calf in Denali National Park, Alaska
December 31, 2015

USGS biologist weighs a newborn caribou calf in Alaska

USGS biologist Gretchen Roffler weighs a newborn caribou calf in Denali National Park, Alaska. 

USGS scientist Layne Adams places a radiocollar on a sedated large bull caribou in Denali National Park, Alaska
December 31, 2015

USGS scientist places radiocollar on a sedated bull caribou in Alaska

USGS scientist Layne Adams places a radiocollar on a sedated large bull caribou in Denali National Park, Alaska. 

Image shows a USGS scientist leaning against a rock outcropping with trees in the background
December 31, 2015

Shearing of the Melozitna Granite

Geologist and cataclastic shear zones in the Melozitna granite in the Ruby batholith. This granite contains abundant monazite and high levels of thorium and rare earth elements. The shear zones accelerate erosion of the granite into streams, where the monazite that contains the rare earth elements can be concentrated. This area is part of the Bureau of Land Management's

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Image shows a woman sitting on a rock in a stream
December 31, 2015

Panning for Rare Earths

A USGS geologist pans for monazite and rare earth minerals in Wolf Creek, which cuts through the Melozitna granite. This area is part of the Bureau of Land Management's Central Yukon Planning Area, which USGS did a mineral assessment of in 2015.

Filter Total Items: 81
Scientist laying cable in a field
June 1, 2016

Fate of Alaska's large carbon reserves could affect greenhouse gas concentration.

satellite image of brown resuspended volcanic ash cloud over Kodiak Island, Alaska
April 25, 2016

Two public events are scheduled next week in the City of Kodiak, Alaska about monitoring old volcanic ash resuspended by high winds. Scientists invite the local community to learn more about the potential impacts of resuspended volcanic ash and how to assist in volcano hazards research by collecting samples of the redistributed volcanic ash and dust.

USGS
April 20, 2016

You really are what you eat. That’s the taking-off point for a new polar bear study, conducted by U.S. Geological Survey researchers with an assist from the Oregon Zoo — and published this week in the journal Physiological and Biochemical Zoology. 

collage of scientists conducting science related to each mission are
April 5, 2016

ANCHORAGE, Alaska — The U.S. Geological Survey released additional evidence that western Alaska remains a hot spot for avian influenza to enter North America. 

Image: Michelle Coombs
April 4, 2016

The U.S. Geological Survey is pleased to announce the selection of Dr. Michelle Coombs as the next Scientist-in-Charge of the Alaska Volcano Observatory, a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.

Suzette Kimball, Director of the U.S. Geological Survey presenting award to Nicholas Mastrodicasa
March 15, 2016

To commemorate the nation's first chief geographer, the USGS established the Henry Gannett Award. This year's recipient is Nicholas Mastrodicasa, Alaska Department of Transportation & Public Facilities, for his leadership in the Alaska Statewide Digital Mapping Initiative and the development of an elevation requirements study for Alaska.

Aerial view of the Chenega village site at the head of Chenega Cove.
February 1, 2016

Minutes after the 1964 magnitude-9.2 Great Alaska Earthquake began shaking, a series of tsunami waves swept through the village of Chenega in Prince William Sound, destroying all but two of the buildings and killing 23 of the 75 inhabitants. 

Image: USGS Scientists Engaged in Field Work on the Aleutian Islands
January 12, 2016

New evidence for frequent large tsunamis at a remote island near Dutch Harbor, Alaska provides geological data to aid tsunami hazard preparedness efforts around the Pacific Rim. 

Alaska Geologic Map
January 5, 2016

ANCHORAGE, Alaska – A new digital geologic map of Alaska is being released today providing land users, managers and scientists geologic information for the evaluation of land use in relation to resource extraction, conservation, natural hazards and recreation.

Thermokarst
November 12, 2015

ANCHORAGE, Alaska – Large and severe tundra fires cause top down permafrost thaw, playing a major role in altering Arctic landscapes according to a new study led by the U.S. Geological Survey.

USGS science for a changing world logo
October 19, 2015

ANCHORAGE, Alaska — A new scientific study predicts that some of Alaska’s mammal species will respond to future climate warming by concentrating in northern areas such as the Arctic National Wildlife Refuge and the National Petroleum Reserve of Alaska. If true, for many species, this would be a significant northward shift into tundra habitats where they are currently absent.

Image: Repairing Seismic Stations in Alaska
October 15, 2015

The Alaska Volcano Observatory has recently completed repairs to seismic monitoring equipment on Aniakchak Volcano on the Alaska Peninsula that have restored ground-based monitoring at the volcano.