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

2020 USGS Alaska Annual Science Report
Filter Total Items: 2,626
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Year Published: 2014

Validation of adipose lipid content as a body condition index for polar bears

Body condition is a key indicator of individual and population health. Yet, there is little consensus as to the most appropriate condition index (CI), and most of the currently used CIs have not been thoroughly validated and are logistically challenging. Adipose samples from large datasets of capture biopsied, remote biopsied, and harvested polar...

McKinney, Melissa A.; Atwood, Todd C.; Dietz, Rune; Sonne, Christian; Iverson, Sara J.; Peacock, Elizabeth L.
Validation of adipose lipid content as a body condition index for polar bears; 2014; Article; Journal; Ecology and Evolution; McKinney, Melissa A.; Atwood, Todd; Dietz, Rune; Sonne, Christian; Iverson, Sara J.; Peacock, Elizabeth

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Year Published: 2014

Tsunami impact to Washington and northern Oregon from segment ruptures on the southern Cascadia subduction zone

This paper explores the size and arrival of tsunamis in Oregon and Washington from the most likely partial ruptures of the Cascadia subduction zone (CSZ) in order to determine (1) how quickly tsunami height declines away from sources, (2) evacuation time before significant inundation, and (3) extent of felt shaking that would trigger evacuation....

Priest, George R.; Zhang, Yinglong; Witter, Robert C.; Wang, Kelin; Goldfinger, Chris; Stimely, Laura
Tsunami impact to Washington and northern Oregon from segment ruptures on the southern Cascadia subduction zone; 2014; Article; Journal; Natural Hazards; Priest, George R.; Zhang, Yinglong; Witter, Robert C.; Wang, Kelin; Goldfinger, Chris; Stimely, Laura

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Year Published: 2014

Late Devonian–Mississippian(?) Zn-Pb(-Ag-Au-Ba-F) deposits and related aluminous alteration zones in the Nome Complex, Seward Peninsula, Alaska

Stratabound base-metal sulfide deposits and occurrences are present in metasedimentary rocks of the Neoproterozoic and Paleozoic Nome Complex on south-central Seward Peninsula, Alaska. Stratabound and locally stratiform deposits including Aurora Creek (Zn-Au-Ba-F), Wheeler North (Pb-Zn-Ag-Au-F), and Nelson (Zn-Pb- Cu-Ag), consist of lenses...

Slack, John F.; Till, Alison; Belkin, Harvey E.; Shanks, Wayne C.

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Year Published: 2014

Seismicity within a propagating ice shelf rift: the relationship between icequake locations and ice shelf structure

Iceberg calving is a dominant mass loss mechanism for Antarctic ice shelves, second only to basal melting. An important known process involved in calving is the initiation and propagation of through-penetrating fractures called rifts; however, the mechanisms controlling rift propagation remain poorly understood. To investigate the mechanics of ice...

Heeszel, David S.; Fricker, Helen A.; Bassis, Jeremy N.; O'Neel, Shad; Walter, Fabian
Seismicity within a propagating ice shelf rift: the relationship between icequake locations and ice shelf structure; 2014; Article; Journal; Journal of Geophysical Research: Earth Surface; Heeszel, David S.; Fricker, Helen A.; Bassis, Jeremy N.; O'Neel, Shad; Walter, Fabian

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Year Published: 2014

Capturing migration phenology of terrestrial wildlife using camera traps

Remote photography, using camera traps, can be an effective and noninvasive tool for capturing the migration phenology of terrestrial wildlife. We deployed 14 digital cameras along a 104-kilometer longitudinal transect to record the spring migrations of caribou (Rangifer tarandus) and ptarmigan (Lagopus spp.) in the Alaskan Arctic. The cameras...

Tape, Ken D.; Gustine, David D.
Capturing migration phenology of terrestrial wildlife using camera traps; 2014; Article; Journal; BioScience; Tape, Ken D.; Gustine, David D.

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Year Published: 2014

Uncertainty and extreme events in future climate and hydrologic projections for the Pacific Northwest: providing a basis for vulnerability and core/corridor assessments

The purpose of this project was to (1) provide an internally-consistent set of downscaled projections across the Western U.S., (2) include information about projection uncertainty, and (3) assess projected changes of hydrologic extremes. These objectives were designed to address decision support needs for climate adaptation and resource management...

Littell, Jeremy S.; Mauger, Guillaume S.; Salathe, Eric P.; Hamlet, Alan F.; Lee, Se-Yeun; Stumbaugh, Matt R.; Elsner, Marketa; Norheim, Robert; Lutz, Eric R.; Mantua, Nathan J.

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Year Published: 2014

Interspecific hybridization contributes to high genetic diversity and apparent effective population size in an endemic population of mottled ducks (Anas fulvigula maculosa)

Under drift-mutation equilibrium, genetic diversity is expected to be correlated with effective population size (Ne). Changes in population size and gene flow are two important processes that can cause populations to deviate from this expected relationship. In this study, we used DNA sequences from six independent loci to examine the influence of...

Peters, Jeffrey L.; Sonsthagen, Sarah A.; Lavretsky, Philip; Rezsutek, Michael; Johnson, William P.; McCracken, Kevin G.
Interspecific hybridization contributes to high genetic diversity and apparent effective population size in an endemic population of mottled ducks (Anas fulvigula maculosa); 2014; Article; Journal; Conservation Genetics; Peters, Jeffrey L.; Sonsthagen, Sarah A.; Lavretsky, Philip; Rezsutek, Michael; Johnson, William P.; McCracken, Kevin G.

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Year Published: 2014

Reviving common standards in point-count surveys for broad inference across studies

We revisit the common standards recommended by Ralph et al. (1993, 1995a) for conducting point-count surveys to assess the relative abundance of landbirds breeding in North America. The standards originated from discussions among ornithologists in 1991 and were developed so that point-count survey data could be broadly compared and jointly...

Matsuoka, Steven M.; Mahon, C. Lisa; Handel, Colleen M.; Solymos, Peter; Bayne, Erin M.; Fontaine, Patricia C.; Ralph, C.J.
Matsuoka, S. M., C. L. Mahon, C. M. Handel, P. Sólymos, E. M. Bayne, P. C. Fontaine, and C. J. Ralph. 2014. Reviving common standards in point-count surveys for broad inference across studies. Condor: Ornithological Applications 116(4):599-608. doi:10.1650/CONDOR-14-108.1

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Year Published: 2014

Survival of adult Red-throated Loons (Gavia stellata) may be linked to marine conditions

Large variations in the summering population size of Red-throated Loons (Gavia stellata) have occurred in recent decades in Alaska. Little information exists about annual or seasonal survival rates of adult Red-throated Loons. This study used tracking data from satellite transmitters implanted into 33 Red-throated Loons captured on breeding...

Schmutz, Joel A.
Survival of red-throated loons (Gavia stellata) may be linked to marine conditions; 2014; Article; Journal; Waterbirds; Schmutz, Joel A.

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Year Published: 2014

Carbonate rocks of the Seward Peninsula, Alaska: Their correlation and paleogeographic significance

Paleozoic carbonate strata deposited in shallow platform to off-platform settings occur across the Seward Peninsula and range from unmetamorphosed Ordovician–Devonian(?) rocks of the York succession in the west to highly deformed and metamorphosed Cambrian–Devonian units of the Nome Complex in the east. Faunal and lithologic correlations indicate...

Dumoulin, Julie A.; Harris, Alta; Repetski, John E.
Dumoulin, J. A., Harris, A. G., & Repetski, J. E. (2014, June 30). Carbonate rocks of the Seward Peninsula, Alaska: Their correlation and paleogeographic significance. Geological Society of America Special Papers. Geological Society of America. https://doi.org/10.1130/2014.2506(03)

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Year Published: 2014

Delineation of Tundra Swan Cygnus c. columbianus populations in North America: geographic boundaries and interchange

North American Tundra Swans Cygnus c. columbianus are composed of two wellrecognised populations: an Eastern Population (EP) that breeds across northern Canada and north of the Brooks Range in Alaska, which migrates to the eastern seaboard of the United States, and a Western Population (WP) that breeds in coastal ...

Ely, Craig R.; Sladen, William J. L.; Wilson, Heather M.; Savage, Susan E.; Sowl, Kristine M.; Henry, Bill; Schwitters, Mike; Snowden, James
Ely, C. R., W. J. L. Sladen, H. M. Wilson, S. E. Savage, K. M. Sowl, B. Henry, M. Schwitters, and J. Snowden. 2014. Delineation of Tundra Swan Cygnus c. columbianus populations in North America: Geographic boundaries and interchange. Wildfowl 64:132-147.

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Year Published: 2014

Demography and behavior of polar bears summering on land in Alaska

Polar bears (Ursus maritimus) in the southern Beaufort Sea population (SB) are spending increased time on the coastal North Slope of Alaska between July and October (Gleason and Rode 2010). The duration spent on land by polar bears, satellite collared on the sea-ice in the spring, during the summer and fall has also increased (USGS, unpublished...

Peacock, Elizabeth L.
Peacock, E. 2012. Demography and behavior of polar bears summering on land in Alaska. Progress Report for 2011 for Interagency Agreement No. M09PB00025 (Minerals Management Service). USGS Alaska Science Center, Anchorage, AK. 15 pp.

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: 984
George Durner collecting data on an anesthetized polar bear
April 1, 2005

George Durner collecting data on an anesthetized polar bear

George Durner collecting data on an anesthetized polar bear

Sheridan River scour hole
January 26, 2005

Sheridan River scour hole

Sheridan River scour hole

Muir and Riggs glaciers flowing into a lake in Alaska
December 31, 2004

Muir and Riggs Glaciers, Muir Inlet, Alaska

Glaciers

As this picture of Muir and Riggs Glaceris in Alaska shows, glaciers are really rivers, but rivers of solid ice instead of liquid water. Just because they are solid does not mean they don't move, though. Glaciers do flow downhill, just very, very slowly.

Glaciers begin life as snowflakes. When the snowfall in an area far exceeds the

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Attribution: Region 11: Alaska
October 30, 2004

PubTalk 10/2004 — Hot Oil, Frozen Ground, and Earthquakes

The Trans-Alaska Pipeline story-- so far, so good!

by George Gryc, Arthur Lachenbruch, and Robert Page, Scientists Emeriti

  • The 1968 discovery of North America.s largest oil fi eld on the Arctic coast posed the challenge of an 800-mile pipeline to carry hot oil across mountains, rivers, and the giant Denali Fault
  • The oil
Attribution: Region 11: Alaska
Black Scoter in Dutch Harbor, Alaska
September 1, 2004

Black Scoter in Dutch Harbor, Alaska

Black Scoter: Dutch Harbor, Alaska

Steller's Eider in Dutch Harbor, Alaska
September 1, 2004

Steller's Eider in Dutch Harbor, Alaska

Steller's Eider in Dutch Harbor, Alaska

Image: Muir and Riggs Glaciers, Muir Inlet, Alaska - 2004
August 31, 2004

Muir and Riggs Glaciers, Muir Inlet, Alaska - 2004

The second repeat photograph documents significant changes that have occurred during the 63 years between photographs A and C, and during the 54 years between photographs B and C. Muir Glacier has retreated out of the field of view and is now more than 7 kilometers northwest. Riggs Glacier has retreated as much as 600 meters and thinned more than 250 meters. Note the dense

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Pacific sand lance in Prince William Sound next to a ruler
July 8, 2004

Pacific sand lance in Prince William Sound next to a ruler

Pacific sand lance in Prince William Sound next to a ruler

A Pacific sand lance, Pacific herrring and a capelin in Prince William Sound, Alaska
June 30, 2004

A Pacific sand lance, Pacific herrring and a capelin

A Pacific sand lance, Pacific herrring and a capelin in Prince William Sound, Alaska

A catch of Pacific sandlance, capelin and other forage fish
June 24, 2004

A catch of Pacific sandlance, capelin and other forage fish

A catch of Pacific sandlance, capelin and other forage fish

Emperor geese standing at the ocean shoreline
February 10, 2004

Emperor geese standing at the shoreline near Kodiak

Emperor geese standing at the shoreline near Kodiak.

Three-dimensional cartoon showing features of an area of the seafloor in relief, near a coastline.
December 31, 2003

Resurrection Bay multibeam imagery

Sonar-generated image showing underwater topography and the potential for landslides near the head of Resurrection Bay, Alaska. The terrain looks three times as steep as it occurs naturally. The arrow points to underwater landslide debris from the collapse of a fan-delta following the great Alaskan earthquake of 1964. The town of Seward, which suffered much damage and lost

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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.