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

USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.

Search USGS publications for Alaska

Arctic Science for Decision Maker

2019 USGS Alaska Annual Science Report
Filter Total Items: 2,528
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Year Published: 2012

Polar and brown bear genomes reveal ancient admixture and demographic footprints of past climate change

Polar bears (PBs) are superbly adapted to the extreme Arctic environment and have become emblematic of the threat to biodiversity from global climate change. Their divergence from the lower-latitude brown bear provides a textbook example of rapid evolution of distinct phenotypes. However, limited mitochondrial and nuclear DNA evidence conflicts in...

Miller, Webb; Schuster, Stephan C.; Welch, Andreanna J.; Ratan, Aakrosh; Bedoya-Reina, Oscar C.; Zhao, Fangqing; Kim, Hie Lim; Burhans, Richard C.; Drautz, Daniela I.; Wittekindt, Nicola E.; Tomsho, Lynn P.; Ibarra-Laclette, Enrique; Herrera-Estrella, Luis; Peacock, Elizabeth L.; Farley, Sean; Sage, George K.; Rode, Karyn D.; Obbard, Martyn E.; Montiel, Rafael; Bachmann, Lutz; Ingólfsson, Ólafur; Aars, Jon; Mailund, Thomas; Wiig, Øystein; Talbot, Sandra L.; Lindqvist, Charlotte
Polar and brown bear genomes reveal ancient admixture and demographic footprints of past climate change; 2012; Article; Journal; Proceedings of the National Academy of Sciences; Miller, Webb; Schuster, Stephan C.; Welch, Andreanna J.; Ratan, Aakrosh; Bedoya-Reina, Oscar C.; Zhao, Fangqing; Kim, Hie Lim; Burhans, Richard C.; Drautz, Daniela I.; Wittekindt, Nicola E.; Tomsho, Lynn P.; Ibarra-Laclette, Enrique; Herrera-Estrella, Luis; Peacock, Elizabeth; Farley, Sean; Sage, George K.; Rode, Karyn; Obbard, Martyn; Montiel, Rafael; Bachmann, Lutz; Ingólfsson, Ólafur; Aars, Jon; Mailund, Thomas; Wiig, Øystein; Talbot, Sandra L.; Lindqvist, Charlotte

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Year Published: 2012

Predicted eelgrass response to sea level rise and its availability to foraging Black Brant in Pacific coast estuaries

Managers need to predict how animals will respond to habitat redistributions caused by climate change. Our objective was to model the effects of sea level rise on total eelgrass (Zostera marina) habitat area and on the amount of that area that is accessible to Brant geese (Branta bernicla), specialist grazers of eelgrass. Digital elevation models...

Shaughnessy, Frank J.; Gilkerson, Whelan; Black, Jeffrey M.; Ward, David H.; Petrie, Mark
Predicted eelgrass response to sea level rise and its availability to foraging Black Brant in Pacific coast estuaries; 2012; Article; Journal; Ecological Applications; Shaughnessy, Frank J.; Gilkerson, Whelan; Black, Jeffrey M.; Ward, David H.; Petrie, Mark

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Year Published: 2012

Evaluation of streambed scour at bridges over tidal waterways in Alaska

The potential for streambed scour was evaluated at 41 bridges that cross tidal waterways in Alaska. These bridges are subject to several coastal and riverine processes that have the potential, individually or in combination, to induce streambed scour or to damage the structure or adjacent channel. The proximity of a bridge to the ocean and water-...

Conaway, Jeffrey S.; Schauer, Paul V.
Evaluation of streambed scour at bridges over tidal waterways in Alaska; 2012; SIR; 2012-5245; Conaway, Jeffrey S.; Schauer, Paul V.

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Year Published: 2012

Phenology and duration of remigial moult in Surf Scoters (Melanitta perspicillata) and White-winged Scoters (Melanitta fusca) on the Pacific coast of North America

By quantifying phenology and duration of remigial moult in Surf Scoters (Melanitta perspicillata (L., 1758)) and White-winged Scoters (Melanitta fusca (L., 1758)), we tested whether timing of moult is dictated by temporal optima or constraints. Scoters (n = 3481) were captured during moult in Alaska, British Columbia, and Washington, and remigial...

Dickson, Rian D.; Esler, Daniel N.; Hupp, Jerry W.; Anderson, E.M.; Evenson, J.R.; Barrett, J.
Phenology and duration of remigial moult in Surf Scoters (Melanitta perspicillata) and White-winged Scoters (Melanitta fusca) on the Pacific coast of North America; 2012; Article; Journal; Canadian Journal of Zoology; Dickson, Rian D.; Esler, D.; Hupp, Jerry W.; Anderson, E. M.; Evenson, J. R.; Barrett, J.

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Year Published: 2012

Polar bear and walrus response to the rapid decline in Arctic sea ice

The Arctic is warming faster than other regions of the world due to positive climate feedbacks associated with loss of snow and ice. One highly visible consequence has been a rapid decline in Arctic sea ice over the past 3 decades - a decline projected to continue and result in ice-free summers likely as soon as 2030. The polar bear (Ursus...

Oakley, Karen L.; Whalen, Mary E.; Douglas, David C.; Udevitz, Mark S.; Atwood, Todd C.; Jay, C.
Polar bear and walrus response to the rapid decline in Arctic sea ice; 2012; FS; 2012-3131; Oakley, K.; Whalen, M.; Douglas, D.; Udevitz, M.; Atwood, T.; Jay, C.

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Year Published: 2012

Walrus areas of use in the Chukchi Sea during sparse sea ice cover

The Pacific walrus Odobenus rosmarus divergens feeds on benthic invertebrates on the continental shelf of the Chukchi and Bering Seas and rests on sea ice between foraging trips. With climate warming, ice-free periods in the Chukchi Sea have increased and are projected to increase further in frequency and duration. We radio-tracked walruses to...

Jay, Chadwick V.; Fischbach, Anthony S.; Kochnev, Anatoly A.
Walrus areas of use in the Chukchi Sea during sparse sea ice cover; 2012; Article; Journal; Marine Ecology Progress Series; Jay, Chadwick V.; Fischbach, Anthony S.; Kochnev, Anatoly A.

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Year Published: 2012

The United States National Climate Assessment - Alaska Technical Regional Report

The Alaskan landscape is changing, both in terms of effects of human activities as a consequence of increased population, social and economic development and their effects on the local and broad landscape; and those effects that accompany naturally occurring hazards such as volcanic eruptions, earthquakes, and tsunamis. Some of the most prevalent...

Markon, Carl J.; Trainor, Sarah F.; Chapin, F. Stuart; Markon, Carl J.; Trainor, Sarah F.; Chapin, F. Stuart
The United States National Climate Assessment - Alaska Technical Regional Report; 2012; CIR; 1379; Edited by Markon, Carl J.; Trainor, Sarah F.; Chapin, F. Stuart, III

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Year Published: 2012

Cambrian–Ordovician sedimentary rocks of Alaska

Cambrian-Lower Ordovician carbonate rocks that likely formed as part of the Laurentian continental margin, and may thus have been part of the Cambrian-Ordovician great American carbonate bank, occur in east-central Alaska in the Nation Arch area. These strata accumulated on the southwestern margin (present-day coordinates) of the Yukon stable...

Derby, James R.; Longacre, S.A.; Morgan, William A.; Sternbach, C.A.; Dumoulin, Julie A.; Harris, Anita G.

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Year Published: 2012

Geologic map of the Cook Inlet region, Alaska, including parts of the Talkeetna, Talkeetna Mountains, Tyonek, Anchorage, Lake Clark, Kenai, Seward, Iliamna, Seldovia, Mount Katmai, and Afognak 1:250,000-scale quadrangles

In 1976, L.B. Magoon, W.L. Adkinson, and R.M. Egbert published a major geologic map of the Cook Inlet region, which has served well as a compilation of existing information and a guide for future research and mapping. The map in this report updates Magoon and others (1976) and incorporates new and additional mapping and interpretation. This map is...

Wilson, Frederic H.; Hults, Chad P.; Schmoll, Henry R.; Haeussler, Peter J.; Schmidt, Jeanine M.; Yehle, Lynn A.; Labay, Keith A.
Geologic map of the Cook Inlet region, Alaska, including parts of the Talkeetna, Talkeetna Mountains, Tyonek, Anchorage, Lake Clark, Kenai, Seward, Iliamna, Seldovia, Mount Katmai, and Afognak 1:250,000-scale quadrangles; 2012; SIM; 3153; Compiled by Wilson, Frederic H.; Hults, Chad P.; Schmoll, Henry R.; Haeussler, Peter J.; Schmidt, Jeannie M.; Yehle, Lynn A.; Labay, Keith

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Year Published: 2012

Studies by the U.S. Geological Survey in Alaska, 2011

The collection of papers that follow continues the series of U.S. Geological Survey (USGS) investigative reports in Alaska under the broad umbrella of the geologic sciences. This series represents new and sometimes-preliminary findings that are of interest to Earth scientists in academia, government, and industry; to land and resource managers;...

Dumoulin, Julie A.; Dusel-Bacon, Cynthia
Studies by the U.S. Geological Survey in Alaska, 2011; 2012; PP; 1795; Edited by Dumoulin, Julie A.; Dusel-Bacon, Cynthia

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Year Published: 2012

Population ecology of breeding Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska

Populations of Pacific common eiders (Somateria mollissima v-nigrum) on the Yukon-Kuskokwim Delta (YKD) in western Alaska declined by 50–90% from 1957 to 1992 and then stabilized at reduced numbers from the early 1990s to the present. We investigated the underlying processes affecting their population dynamics by collection and analysis of...

Wilson, Heather M.; Flint, Paul L.; Powell, Abby N.; Grand, J. Barry; Moral, Christine L.
Population ecology of breeding Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska; 2012; Article; Journal; Wildlife Monographs; Wilson, Heather M.; Flint, Paul L.; Powell, Abby N.; Grand, J. Barry; Moral, Christine L.

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Year Published: 2012

Streamflow record extension for selected streams in the Susitna River Basin, Alaska

Daily streamflow records for water years 1950–2010 in the Susitna River Basin range in length from 4 to 57 years, and many are distributed within that period in a way that might not adequately represent long-term streamflow conditions. Streamflow in the basin is affected by the Pacific Decadal Oscillation (PDO), a multi-decadal climate...

Curran, Janet H.
Streamflow record extension for selected streams in the Susitna River Basin, Alaska; 2012; SIR; 2012-5210; Curran, Janet H.

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: 988
Image: The Ivotuk Hills, Alaska North Slope, Viewed From Ivotuk Camp

The Ivotuk Hills, Alaska North Slope, Viewed From Ivotuk Camp

Exposures of sedimentary rocks in the western Brooks Range, Alaska were evaluated for their contents of metals and phosphate and for their petroleum maturation histories to determine the potential for undiscovered resources in the southern National Petroleum Reserve Alaska.

Clear day view of Augustine volcano - Lagoon

Augustine - Lagoon

The camera is located at the University of Alaska Geophysical Institute Augustine camp on the west side of the island. Images are transmitted to Anchorage via Homer using the Plate Boundary Observatory radio network. Current image interval is 120 minutes. Read more about Augustine volcano.

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This dark image shows changes in pixels in a video image over 10 minutes.

Unalakleet video camera 2 variance image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 2 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

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Image: Fireweed and Beaver Creek, Alaska

Fireweed and Beaver Creek, Alaska

Fireweed gains a foothold in a burn area of the White Mountains in Alaska.

Clear night image of Augustine - low light

Augustine - Low Light

This low-light camera is co-located with the daylight camera in Homer. It is extremely sensitive to light and has a range that extends to the Near Infrared (NIR). The image from this camera will often be light-saturated during daylight hours and will display only as a white featureless screen. Read

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This image shows the brightest pixel values captured during 10 minutes of video.

Unalakleet video camera 1 bright image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 1 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

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Clear day view of Cleveland volcano

Cleveland CLCO

This camera is located near Concord Point, Chuginadak Island, and looks west-northwest to Cleveland in the mid-center. On nice days, Carlisle is visible to the far right, beyond Cleveland. The slopes of Tana are in the near-right. To conserve battery power, this camera intermittently captures images.

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This image shows the brightest pixel values captured during 10 minutes of video.

Unalakleet video camera 2 bright image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 2 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

...
This image shows the darkest pixel values captured during 10 minutes of video.

Unalakleet video camera 1 dark image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 1 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

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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.