Unified Interior Regions

Region 11: Alaska

Alaska Science Center

Alaska Science Center

4210 University Drive
Anchorage, AK 99508
Phone: (907) 786-7000

View Center Website

Volcano Science Center

Volcano Science Center

4230 University Drive
Anchorage, AK 99508
Phone: (907) 786-7497

View Center Website

Climate Adaptation Science Center

Climate Adaptation Science Center

4230 University Drive
Anchorage, AK 99508
Phone: 907-301-7830

View Center Website

Regions L2 Landing Page Tabs

Filter Total Items: 2,396
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Year Published: 2018

Remotely sensing the morphometrics and dynamics of a cold region dune field using historical aerial photography and airborne LiDAR data

This study uses an airborne Light Detection and Ranging (LiDAR) survey, historical aerial photography and historical climate data to describe the character and dynamics of the Nogahabara Sand Dunes, a sub-Arctic dune field in interior Alaska’s discontinuous permafrost zone. The Nogahabara Sand Dunes consist of a 43-km2 area of active...

Baughman, Carson; Jones, Benjamin M.; Bodony, Karin L.; Mann, Daniel H.; Larsen, Christopher F.; Himmelstoss, Emily A.; Smith, Jeremy

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Year Published: 2018

The Mystic subterrane (partly) demystified: New data from the Farewell terrane and adjacent rocks, interior Alaska

The youngest part of the Farewell terrane in interior Alaska (USA) is the enigmatic Devonian–Cretaceous Mystic subterrane. New U-Pb detrital zircon, fossil, geochemical, neodymium isotopic, and petrographic data illuminate the origin of the rocks of this subterrane. The Devonian–Permian Sheep Creek Formation yielded youngest detrital zircons of...

Dumoulin, Julie A.; Jones, James V.; Box, Stephen E.; Bradley, Dwight C.; Ayuso, Robert A.; O'Sullivan, Paul B.

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Year Published: 2018

Alaska snowpack response to climate change: Statewide snowfall equivalent and snowpack water scenarios

Climatically driven changes in snow characteristics (snowfall, snowpack, and snowmelt) will affect hydrologic and ecological systems in Alaska over the coming century, yet there exist no projections of downscaled future snow pack metrics for the state of Alaska. We updated historical and projected snow day fraction (PSF, the fraction of days with...

Littell, Jeremy S.; McAfee, Stephanie A.; Hayward, Gregory D.
Littell, J.S.; McAfee, S.A.; Hayward, G.D. Alaska Snowpack Response to Climate Change: Statewide Snowfall Equivalent and Snowpack Water Scenarios. Water 2018, 10, 668.

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Year Published: 2018

Body size and lean mass of brown bears across and within four diverse ecosystems

Variation in body size across populations of brown bears (Ursus arctos) is largely a function of the availability and quality of nutritional resources while plasticity within populations reflects utilized niche width with implications for population resiliency. We assessed skull size, body length, and lean mass of adult female and male brown...

Hilderbrand, Grant V.; Gustine, David; Mangipane, Buck A.; Joly, Kyle; Leacock, William; Mangipane, Lindsey S.; Erlenbach, Joy; Sorum, Mathew; Cameron, Matthew; Belant, Jerrold L.; Cambier, Troy
Hilderbrand, G. V., D. D. Gustine, B. Mangipane, K. Joly, W. Leacock, L. Mangipane, J. Erlenbach, M. S. Sorum, M. D. Cameron, J. L. Belant, and T. Cambier. 2018. Body size and lean mass of brown bears across and within four diverse ecosystems. Journal of Zoology 305:53-62. DOI: 10.1111/jzo.12536.

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Year Published: 2018

Design considerations for estimating survival rates with standing age structures

Survival rate estimates are critical to understanding the dynamics and status of a population, and they are often inferred from samples of the population’s age structure. A recently developed method uses time series of standing age-structure data with information about population growth rate or fecundity to provide explicit maximum likelihood...

Taylor, Rebecca L.; Udevitz, Mark S.
Taylor, R.L., and M.S. Udevitz. 2018. Design considerations for estimating survival rates with standing age structures. Wildlife Society Bulletin 42(1):32–39; DOI: 10.1002/wsb.858

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Year Published: 2018

Generalist feeding strategies in Arctic freshwater fish: A mechanism for dealing with extreme environments

Generalist feeding strategies are favoured in stressful or variable environments where flexibility in ecological traits is beneficial. Species that feed across multiple habitat types and trophic levels may impart stability on food webs through the use of readily available, alternative energy pools. In lakes, generalist fish species may take...

Laske, Sarah M.; Rosenberger, Amanda E.; Wipfli, Mark S.; Zimmerman, Christian E.
Laske, S.M., Rosenberger, A.E., Wipfli, M.S. and Zimmerman, C.E., 2018, Generalist feeding strategies in Arctic freshwater fish: A mechanism for dealing with extreme environments: Ecology of Freshwater Fish, doi: 10.1111/eff.12391

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Year Published: 2018

Biological responses of Crested and Least auklets to volcanic destruction of nesting habitat in the Aleutian Islands, Alaska

Crested Auklets (Aethia cristatella) and Least Auklets (A. pusilla) are crevice-nesting birds that breed in large mixed colonies at relatively few sites in the Aleutian Island archipelago, Bering Sea, Gulf of Alaska, and Sea of Okhotsk. Many of these colonies are located on active volcanic islands. The eruption of Kasatochi volcano, in the central...

Drew, Gary S.; Piatt, John F.; Williams, Jeffrey C.
Drew, G.S., Piatt, J.F., and Williams, J., 2018, Biological responses of Crested and Least auklets to volcanic destruction of nesting habitat in the Aleutian Islands, Alaska: The Auk, vol. 135, no. 3, p. 477-485. doi: 10.1642/AUK-17-180.1

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Year Published: 2018

Surficial geologic map of the Dillingham quadrangle, southwestern Alaska

The geologic map of the Dillingham quadrangle in southwestern Alaska shows surficial unconsolidated deposits, many of which are alluvial or glacial in nature. The map area, part of Alaska that was largely not glaciated during the late Wisconsin glaciation, has a long history reflecting local and more distant glaciations. Late Wisconsin...

Wilson, Frederic H.
Wilson, F.H., 2018, Surficial geologic map of the Dillingham quadrangle, southwestern Alaska: U.S. Geological Survey Scientific Investigations Map 3388, 15 p., scale 1:250,000, https://doi.org/10.3133/sim3388.

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Year Published: 2018

Development and characterization of 12 polymorphic microsatellite loci in the sea sandwort, Honckenya peploides

Codominant marker systems are better suited to analyze population structure and assess the source of an individual in admixture analyses. Currently, there is no codominant marker system using microsatellites developed for the sea sandwort, Honckenya peploides (L.) Ehrh., an early colonizer in island systems. We developed and characterized novel...

Gravley, Megan C.; Sage, George K.; Talbot, Sandra L.; Carlson, Matthew L.
Gravley, M. C., G. K. Sage, S. L. Talbot, and M. L. Carlson. 2018. Development and characterization of 12 polymorphic microsatellite loci in the sea sandwort, Honckenya peploides. Journal of Plant Research:1-7. doi:10.1007/s10265-018-1036-7

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Year Published: 2018

A comparison of photograph-interpreted and IfSAR-derived maps of polar bear denning habitat for the 1002 Area of the Arctic National Wildlife Refuge, Alaska

Polar bears (Ursus maritimus) in Alaska use the Arctic National Wildlife Refuge (ANWR) for maternal denning. Pregnant bears den in snow banks for more than 3 months in winter during which they give birth to and nurture young. Denning is one of the most vulnerable times in polar bear life history as the family group cannot simply walk away from a...

Durner, George M.; Atwood, Todd C.
Durner, G.M., and Atwood, T.C., 2018, A comparison of photograph-interpreted and IfSAR-derived maps of polar bear denning habitat for the 1002 Area of the Arctic National Wildlife Refuge, Alaska: U.S. Geological Survey Open-File Report 2018–1083, 12 p., https://doi.org/10.3133/ofr20181083.

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Year Published: 2018

Acquisition and dissemination of cephalosporin-resistant E. coli in migratory birds sampled at an Alaska landfill as inferred through genomic analysis

Antimicrobial resistance (AMR) in bacterial pathogens threatens global health, though the spread of AMR bacteria and AMR genes between humans, animals, and the environment is still largely unknown. Here, we investigated the role of wild birds in the epidemiology of AMR Escherichia coli. Using next-generation sequencing, we characterized...

Ahlstrom, Christina Ann; Bonnedahl, Jonas; Woksepp, Hanna; Hernandez, Jorge; Bjorn, Olsen; Ramey, Andrew M.

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Year Published: 2018

A snow density dataset for improving surface boundary conditions in Greenland ice sheet firn modeling

The surface snow density of glaciers and ice sheets is of fundamental importance in converting volume to mass in both altimetry and surface mass balance studies, yet it is often poorly constrained. Site-specific surface snow densities are typically derived from empirical relations based on temperature and wind speed. These parameterizations...

Robert Fausto; Box, Jason E.; Baptiste Vandecrux; Dirk van As; Steffen, Konrad; MacFerrin, Michael J.; Machguth, Horst; Colgan, William; Mcgrath, Daniel; Koenig, Lora S.; Charalampidis, Charalampos; Braithwaite, Roger J.

Browse a selection of videos, audio clips, images, and more from a wide range of science topics covered by USGS!

"Science for a Changing World" - watch the short film here!

Documentary on walruses here!

Watch the first-ever footage of a polar bear on Arctic sea ice!

Join USGS geologists as they collect lava samples from Kilauea Volcano.

Watch researchers in the Arctic!

Filter Total Items: 986
Scientist tows GPR over ice
April 24, 2017

Ground-penetrating Radar

Research Hydrologist Martin Briggs (USGS) tows ground-penetrating radar (GPR) during field work in Alaska. (April 2017)

Helicopter with equipment strapped to side
April 24, 2017

GPR and Helicopter

Helicopters are often used to carry scientists and equipment to remote study areas in Alaska. In this photo, a ground-penetrating radar (GPR) unit is securely strapped to the side of the helicopter. (April 2017)

Scientist operates equipment console while towing GPR on ice
April 24, 2017

Hydrologist and Ground-Penetrating Radar (GPR)

Research Hydrologist Martin Briggs (USGS) collects ground-penetrating radar (GPR) data. He is wearing special ice cleats on his shoes to have better traction walking on the ice. (April 2017)

Scientists work on equipment in snow-covered area.
April 22, 2017

Surface nuclear magnetic resonance in Alaska

USGS Research Geophysicist Andy Kass (left, in orange) adjusts surface nuclear magnetic resonance equipment (NMR) with input from collaborators Eliot Grunewald (Vista Clara), Alex Huryn (University of Alabama), and Patrick Hendrickson (University of Colorado). NMR is being used to measure the distribution of liquid water in the subsurface. (April 2017)

Small bird with really long beak
April 14, 2017

Red-breasted Nuthatch with an elongated deformed beak

Female Red-breasted Nuthatch with an elongated beak. It was captured in Anchorage as part of the beak deformity research project.

March 30, 2017

2017 March Public Lecture—Brown Bears, Sea Otters, and Seals, Oh My!

Brown Bears, Sea Otters, and Seals, Oh My!
Unexpected interactions on the Katmai Coast
by Grant Hilderbrand, Chief of the Marine Ecosystems Office, USGS Alaska Science Center

  • Highlights of ongoing research on brown bears on the coast of the Katmai National Park
  • Observations from video collars deployed on brown bears
A stony islet in an Icy Point pond
February 28, 2017

A stony islet in one of the many ponds of Icy Point

A stony islet in one of the many ponds of Icy Point.

February 28, 2017

Assessing Soil Moisture Availability Across the Gulf of Alaska Region

The distribution of water on the landscape influences many ecological functions such as the distribution of vegetation, soil development and the cycle of chemical nutrients. All of these functions are subject to change as a result of variations in the duration of soil water saturation and flow of water through the distributed channel networks of watersheds. The landscape

Aerial photo of snow-covered mountaIns with umbrella-shaped volcanic ash plume rising in the background
February 19, 2017

Bogoslof volcano eruption plume

February 19 Bogoslof eruption plume as seen from Unalaska Island, 53 miles ESE of Bogoslof volcano. Photo taken from helicopter during fieldwork by AVO geologists at 5:22PM, approximately 14 minutes after the start of the eruption.

Scintillometer sitting on top of a rock outcropping surrounded by trees
February 17, 2017

Torrs of the Ruby Batholith

Scintillometer and torrs of the Melozitna granite in the Ruby batholith.  This granite contains abundant monazite and high levels of thorium and rare earth elements. This area is part of the Bureau of Land Management's Central Yukon Planning Area, which USGS did a mineral assessment of in 2015.

Satellite image of small crescent-shaped ocean island.
January 24, 2017

Shoreline changes at Bogoslof volcano

Analysis of shoreline changes at Bogoslof volcano due to eruptive activity between January 11 and 24, 2017. The base image is a Worldview-2 satellite image collected on January 24, 2017. The approximate location of the shoreline on January 11, 2017 is shown by the dashed orange line.

Annotated aerial photo of crescent shaped island surrounded by open ocean.
January 10, 2017

Annotated photo of Bogoslof Island showing effects of eruption

Annotated photograph of Bogoslof Island showing the cumulative effects of 2016-17 eruptive activity. A layer of fine muddy appearing ash drapes most of the landscape and covers pre-existing vegetation. The dashed line indicates the area excavated by explosive eruptive activity so far. A prominent zone of upwelling is probably the surface expression of a shallow submarine

...

Browse a collection of stories about prominent USGS scientists and projects in Alaska news.

2019 USGS Alaska Annual Science Report

Filter Total Items: 247
USGS
May 11, 2005

Reston, VA -- A U.S. Geological Survey (USGS) assessment of undiscovered oil and gas resources of the central part of the Alaska North Slope and the adjacent state offshore area finds that there is a significant amount of oil and a large amount of gas that remains to be discovered. 

USGS science for a changing world logo
May 2, 2005

A new report by the U.S. Geological Survey (USGS) highlights the breadth of scientific studies on Native lands. American Indian and Alaska Native governments will use information from these studies in their land and resource management decisions. 

USGS
May 2, 2005

A new report by the U.S. Geological Survey (USGS) highlights the breadth of scientific studies on Native lands. American Indian and Alaska Native governments will use information from these studies in their land and resource management decisions.

USGS science for a changing world logo
April 29, 2005

Reston, VA – The U.S. Geological Survey (USGS) today released the first ever comprehensive and systematic review of the 169 U.S. volcanoes and established a framework for a National Volcano Early Warning System (NVEWS) which calls for a 24-hour seven-day-a-week Volcano Watch Office and enhanced instrumentation and monitoring at targeted volcanoes.

USGS science for a changing world logo
December 14, 2004

The U.S. Geological Survey (USGS) recently completed a new assessment of undiscovered oil and gas resources in the Yukon Flats region of east-central Alaska. 

USGS
December 14, 2004

The U.S. Geological Survey (USGS) recently completed a new assessment of undiscovered oil and gas resources in the Yukon Flats region of east-central Alaska.

USGS science for a changing world logo
December 6, 2004

USGS Director Chip Groat is available for interviews on Dec. 6-7. Please call the contact, above. Groat will present Science for Ecosystem Restoration on Mon, Dec. 6 from 2:20-2:50pm.

USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
March 26, 2004

It was the earthquake that woke up America, its 9.2 Herculean shaking reverberating through the earth, causing the whole planet to ring like a bell for weeks afterward. Even now, the earth is still moving in response to the "Good Friday Earthquake" that rocked Alaska on March 27, 1964.

USGS science for a changing world logo
March 24, 2004

It was the earthquake that woke up America, its 9.2 Herculean shaking reverberating through the earth, causing the whole planet to ring like a bell for weeks afterward. Even now, the earth is still moving in response to the "Good Friday Earthquake" that rocked Alaska on March 27, 1964.

USGS science for a changing world logo
September 22, 2003

The rapid depletion of at least a half million great whales from the North Pacific Ocean by intensive industrial whaling over 50 years ago may have unleashed a complex ecological chain reaction that has since rippled resoundingly from ocean to coastal ecosystems, according to a team of eight scientists, including Dr. Jim Estes, a U.S. Geological Survey research ecologist.

Stay up-to-date with what is happening in the Alaska Region by checking out our different social media accounts. You can also contact Alaska Regional Office staff or Center Directors for more information.