Unified Interior Regions

Alaska

States L2 Landing Page Tabs

Filter Total Items: 197
Biologist removing the ear bones from a fish on a table on a boat in Southeast Alaska
Date Published: April 19, 2018
Status: Active

Primary Production Sources and Bottom-up Limitations in Nearshore Ecosystems

Kelp forests are among the world’s most productive habitats, but recent evidence suggests that production is highly variable.

Contacts: James L Bodkin, Christian E Zimmerman, Ph.D., David Douglas, Gordon Kruse, Franz Mueter
Scientist walking up the Akilik River with a minnow trap to catch fish
Date Published: April 18, 2018
Status: Active

Hydro-Ecology of Arctic Thawing (HEAT): Ecology

Permafrost thaw is leading to a myriad of changes in physical and chemical conditions throughout the Arctic.

Elodea spp. on a rake in Sand Lake in Anchorage, Alaska
Date Published: April 18, 2018
Status: Active

Effect of Elodea spp. on Fish Performance Mediated Through Food Web Interactions

The potential for invasive species introductions in Arctic and Subarctic ecosystems is growing as climate change manifests and human activity increases in high latitudes.

Contacts: Michael P Carey, Ph.D., Suresh Andrew Sethi, Ph.D., Christian E Zimmerman, Ph.D., Dan Young, Gordon Reeves, Theresa Tanner
A fish weir on the Pilgrim River to prevent fish from going downstream except when controlled by a gate
Date Published: April 17, 2018
Status: Active

Sockeye Salmon Migrating at the Northern Edge of Their Distribution

The physiological challenge for anadromous fish to migrate upriver to spawn and complete their life cycle is influenced by river temperature.

Contacts: Michael P Carey, Ph.D., Stephen D McCormick, Amy Regish, Christian E Zimmerman, Ph.D., Kevin D. Keith, Merlyn Schelske, Charlie Lean
A lot of small fish from a fyke net set near Kaktovik, AK.  Biologists sort through them.
Date Published: April 16, 2018
Status: Active

Nearshore Fish Surveys in the Beaufort Sea

Nearshore systems provide habitat to a unique community of marine and diadromous (lives in both fresh and saltwater) fish and support high fish abundance.

Hyperspectral camera measures output from calibration lamp
Date Published: April 11, 2018
Status: Active

Development and Validation of Hyperspectral Imager for Field and Lab Scanning

The Mineral Resources Program has advanced methods of imaging spectroscopy (hyperspectral remote sensing) that are now used routinely by the earth science and remote sensing communities for mineral mapping, soil quality mapping, hazard mitigation, and other terrestrial and planetary applications. The USGS is highly qualified to advance this technology based on its world class expertise in...

Contacts: Raymond Kokaly
Biologist transferring a muscle biopsy from the sampler to the vial
Date Published: April 3, 2018
Status: Active

Assessing heat stress in migrating Yukon River Chinook Salmon

We will examine evidence of heat stress in Yukon River Chinook salmon (Oncorhynchus tshawytscha) using heat shock proteins and gene expression.

Darby Mountain outcrop of quartz monzonite towards the contact between the pluton and Paleozoic marbles
Date Published: March 13, 2018
Status: Active

Alaska Technical Data Unit - Field Records Archives

This project is designed to collect, inventory, preserve, and make available the records of USGS geologic and minerals work in Alaska. Materials are organized in two broad categories of records: (1) Project History files, which contain field notes, maps, and fossil reports; and (2) Geologic Subject files, containing unpublished materials, correspondence, and the Economic Minerals files. Access...

USGS Alaska Science Center sign
Date Published: March 2, 2018
Status: Active

Media/Outreach at the Alaska Science Center

If you have questions about upcoming events, research, or media inquiries regarding the USGS Alaska Science Center please contact Yvette Gillies, Paul Laustsen or Steven Sobieszczyk.

Ice bergs in the Chukchi Sea, Alaska
Date Published: March 2, 2018
Status: Active

Wind - Habitat Dynamics

Several species of shorebird that nest in the Arctic make remarkable non-stop trans-oceanic migrations to non-breeding areas in the southern hemisphere. Scientists at the USGS Alaska Science Center have discovered many fascinating and previously unknown details about these long-distance migrations by instrumenting individual birds with Argos satellite transmitters (see...

Contacts: David Douglas
Three caribou from the Porcupine Herd standing on the tundra
Date Published: March 1, 2018
Status: Active

Vegetation Phenology - Habitat Dynamics

Vegetation Phenology

Contacts: David Douglas
Open water, sea ice, and pressure ridges in the Beaufort Sea
Date Published: March 1, 2018
Status: Active

Sea Ice - Habitat Dynamics

Sea Ice Present, Future and Ice Loss and Wildlife

Contacts: David Douglas
Filter Total Items: 142
The  R/V Alaskan Gyre in Katmai National Park, Alaska
August 1, 2017

The R/V Alaskan Gyre is a 50-foot fiberglass seiner that has been converted into a versatile research vessel to provide USGS scientists and collaborators with access to remote marine areas of Alaska and serve as a mobile laboratory.  The vessel was built by Ledford Marine of Marysville, Washington in 1989 and is named after the Alaskan Gyre, a series of wind driven currents that rotate counter clockwise in the Gulf of Alaska.

Tundra lakes, Selawik National Wildlife Refuge
March 15, 2017

WildCast's (WILDlife Potential Habitat ForeCASTing Project) photographic transect project of northwest Alaska provides access to the photographs, videos, flight routes, and associated data, that were taken during July 16, 17, and 18, 2013. The images depict land cover types as a baseline for measuring future change and to complement other existing grid-based sample photography of the region.

Bathymetric terrain model of Queen Charlotte Fault area, with multichannel sparker lines in black
January 1, 2017

Multibeam bathymetry data were collected along the Queen Charlotte-Fairweather Fault between Icy Point and Dixon Entrance, offshore southeastern Alaska from 2016-05-17 to 2016-06-12. Data were collected aboard the Alaska Department of Fish and Game R/V Medeia using a Reson SeaBat 7160 multibeam echosounder, Reson 7k Control Center, and HYPACK. This data release contains approximately 4,

Map shows a line that illustrates the location in water where sonar data was collected.
January 1, 2017

This data release contains high-resolution seismic reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed

Bathymetric terrain model of Queen Charlotte Fault area, with multichannel sparker lines in black
January 1, 2017

Multichannel sparker (MCS) seismic-reflection data were collected along the Queen Charlotte-Fairweather Fault between Cross Sound and Dixon Entrance, offshore southeastern Alaska from 2016-05-17 to 2016-06-12. Data were collected aboard the Alaska Department of Fish and Game R/V Medeia, and recorded using a 32 channel GeoEel digital streamer, an Applied Acoustics power supply, and a

Map illustrates the lines in water where sonar data was collected from a ship.
January 1, 2017

This data release contains high-resolution multichannel seismic (MCS) reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evi

USGS
January 1, 2017

Imaging spectrometer (hyperspectral) data were collected using the HyMap™ sensor over the Nabesna Area of Interest (AOI) in the eastern Alaska Range, July 14 and July 21, 2014. The primary study area was a remote part of the eastern Alaska Range where porphyry deposits are exposed. The HyMap imaging spectrometer measured reflected sunlight in 126 narrow channels spanning the 0

USGS
January 1, 2017

This data release includes geochemical, x-ray diffraction mineralogical, and electron probe microanalysis (EPMA) data on rocks, soils, and sediments collected near the Orange Hill and Bond Creek porphyry copper deposits, Nabesna quadrangle, Alaska. Geochemical analyses were completed by a laboratory under contract with the U.S. Geological Survey (USGS). Electron microprobe and

Spatial extent of North Pacific Pelagic Seabird Database samples
November 7, 2016

List of resources and protocols used by the North Pacific Pelagic Seabird Database (NPPSD).

Alaska IfSAR Elevation Image
April 22, 2016

Radar data is being collected statewide for Alaska under direction of the USGS 3D Elevation Program (3DEP). The new data is vastly improving the accuracy and resolution of elevation data for the state, and is being collected using an airborne Interferometric Synthetic Aperture Radar (IfSAR) sensor. USGS and the State of Alaska maintain web-based status maps and download services.

Structure datasets for the nation from The National Map
April 20, 2016

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

Filter Total Items: 113
Publication Thumbnail
Year Published: 1966

Slide-induced waves, seiching and ground fracturing caused by the earthquake of March 27, 1964 at Kenai Lake, Alaska: Chapter A in The Alaska earthquake, March 27, 1964: regional effects

The March 27, 1964, earthquake dislodged slides from nine deltas in Kenai Lake, south-central Alaska. Sliding removed protruding parts of deltas-often the youngest parts-and steepened delta fronts, increasing the chances of further sliding. Fathograms show that debris from large slides spread widely over the lake floor, some reaching the toe of...

McCulloch, David S.
Slide-induced waves, seiching and ground fracturing caused by the earthquake of March 27, 1964 at Kenai Lake, Alaska: Chapter A in The Alaska earthquake, March 27, 1964: regional effects; 1966; PP; 543-A; The Alaska earthquake, March 27, 1964: regional effects (Professional Paper 543); McCulloch, David S.

Publication Thumbnail
Year Published: 1966

The Alaska earthquake, March 27, 1964: field investigations and reconstruction effort

One of the greatest geotectonic events of our time occurred in southern Alaska late in the afternoon of March 27, 1964. Beneath a leaden sky, the chill of evening was just settling over the Alaskan countryside. Light snow was falling on some communities. It was Good Friday, schools were closed, and the business day was ending. Suddenly without...

Hansen, Wallace R.; Eckel, Edwin B.; Schaem, William E.; Lyle, Robert E.; George, Warren; Chance, Genie
The Alaska earthquake, March 27, 1964: field investigations and reconstruction effort; 1966; PP; 541; Hansen, Wallace R.; Eckel, Edwin B.; Schaem, William E.; Lyle, Robert E.; George, Warren; Chance, Genie

Publication Thumbnail
Year Published: 1966

The Alaska earthquake, March 27, 1964: regional effects

This is the third in a series of six reports that the U.S. Geological Survey published on the results of a comprehensive geologic study that began, as a reconnaissance survey, within 24 hours after the March 27, 1964, Magnitude 9.2 Great Alaska Earthquake and extended, as detailed investigations, through several field seasons. The 1964 Great...

McCulloch, David S.; Tuthill, Samuel J.; Laird, Wilson M.; Case, J.E.; Barnes, D.F.; Plafker, George; Robbins, S.L.; Kachadoorian, Reuben; Ferrians, Oscar J.; Foster, Helen L.; Karlstrom, Thor N.V.; Kirkby, M.J.; Kirkby, Anne V.; Stanley, Kirk W.
The Alaska earthquake, March 27, 1964: regional effects; 1966; PP; 543; McCulloch, David S.; Tuthill, Samuel J.; Laird, Wilson M.; Case, J.E.; Barnes, D.F.; Plafker, George; Robbins, S.L.; Kachadoorian, Reuben; Ferrians, Oscar J., Jr.; Foster, Helen L.; Karlstrom, Thor N.V.; Kirkby, M.J.; Kirkby, Anne V.; Stanley, Kirk W.

Publication Thumbnail
Year Published: 1965

Effects of the earthquake of March 27, 1964, at Anchorage, Alaska: Chapter A in The Alaska earthquake, March 27, 1964: effects on communities

Anchorage, Alaska’s largest city, is about 80 miles west-northwest of the epicenter of the March 27 earthquake. Because of its size, Anchorage bore the brunt of property damage from the quake; it sustained greater losses than all the rest of Alaska combined. Damage was caused by direct seismic vibration, by ground cracks, and by landslides. Direct...

Hansen, Wallace R.
Effects of the earthquake of March 27, 1964, at Anchorage, Alaska: Chapter A in The Alaska earthquake, March 27, 1964: effects on communities; 1965; PP; 542-A; The Alaska earthquake, March 27, 1964: effects on communities (Professional Paper 542); Hansen, Wallace R.

Publication Thumbnail
Year Published: 1965

Effects of the earthquake of March 27, 1964, at Whittier, Alaska: Chapter B in The Alaska earthquake, March 27, 1964: effects on communities

Whittier, Alaska, lying at the western end of Passage Canal, is an ocean terminal of The Alaska Railroad. The earthquake that shook south-central Alaska at 5:36 p.m. (Alaska Standard Time) on March 27, 1964, took the lives of 13 persons and caused more than $5 million worth of damage to Government and private property at Whittier. Seismic motion...

Kachadoorian, Reuben
Effects of the earthquake of March 27, 1964, at Whittier, Alaska: Chapter B in The Alaska earthquake, March 27, 1964: effects on communities; 1965; PP; 542-B; The Alaska earthquake, March 27, 1964: effects on communities (Professional Paper 542); Kachadoorian, Reuben

Filter Total Items: 1,047
Copper River sonar on a bridge
April 24, 2019

Copper River sonar on a bridge

Copper River sonar on a bridge

Canning River with Brooks Range in the background
April 24, 2019

Canning River with Brooks Range in the background

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Knik River bridge aerial view
April 22, 2019

Knik River bridge aerial view

Knik River bridge aerial view

Twentymile River bridge
March 27, 2019

Twentymile River bridge

Twentymile bridge

A photo from the sky of a coastline showing areas of sediment and water as well as land features like roads.
February 26, 2019

Orthophotomosaic image, north coast of Barter Island, July 1, 2014

Aerial photographs were collected from a small, fixed-wing aircraft over the coast of Barter Island, Alaska on July 01 2014, September 07 2014. Precise aircraft position information and structure-from-motion photogrammetric methods were combined to derive a high-resolution orthophotomosaic. This orthophotomosaic contain 3-band, 8-bit, unsigned raster data (red/green/blue;

...
Evidence of turbidity currents in Eklutna Lake triggered by shaking during the 2018 Mw7.1 Anchorage earthquake
February 16, 2019

Evidence of turbidity currents in Eklutna Lake

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake. In this photo, USGS scientist Peter Haeussler points to a dark layer at the top of a sediment core taken from the floor of Eklutna Lake

...
Researchers examine tree rings for anomalies.
December 31, 2018

Tree ring research in Alaska

Researchers examine tree rings for anomalies.

Landsat animation of change in Twelvemile Lake, in the Yukon Flats ecoregion in Alaska
December 31, 2018

Twelvemile Lake - Change Over Time

Animation of Twelvemile Lake in the Yukon Flats ecoregion in Alaska, created using USGS Landsat data.

house next to landslide with snowcovered ground
December 31, 2018

Landslide near Potter Hill, Anchorage, Alaska

Landslide near Potter Hill, Anchorage, Alaska, after 2018 Anchorage earthquake.

Map of AK showing probability of change occurrence
December 31, 2018

Map of AK showing probability of change occurrence

Map of Alaska showing probability (%) of change occurrence. Insets show fire boundaries from the Bureau of Land Management (BLM) Large Fire Database and Landsat 8 imagery (bottom right; 2016) north of Fairbanks, Alaska.

Thawing permafrost on various peatlands in Alaska.
December 31, 2018

Thawing Permafrost, Alaska

Thawing permafrost on various peatlands in Alaska. Permafrost thaw results in ground subsidence and inundation that kills black spruce and other understory plants living on the permafrost plateau. The black spruce forests found on permafrost plateaus are replaced with sedge- and moss-dominated bogs and fens, altering the ecosystem structure and function.

Scientist extract a sediment core from the permafrost plateaus in Alaska
December 31, 2018

Collecting Cores in Thawing Permafrost, Alaska

Cores were collected from various areas of thawing permafrost-peatlands in Alaska. Permafrost thaw results in ground subsidence and inundation that kills black spruce and other understory plants living on the permafrost plateau. 

Filter Total Items: 257
collage of scientists conducting science related to each mission are
November 17, 2014

In a new polar bear study published today, scientists from the United States and Canada found that during the first decade of the 21st century, the number of polar bears in the southern Beaufort Sea experienced a sharp decline of approximately 40 percent. 

Location of study site in western Alaska and Radarsat-1 satellite images of the Hazen Bay coast during low water
September 23, 2014

Scientists examined storm flooding events in the Bering Sea region of western Alaska from 1913 to 2011 and found that the largest events occurred in autumn and were associated with high tides and strong southwest winds.

Landcover map (left) and pedestrian evacuation time estimate map (right) Ocean Shores, Washington.
September 16, 2014

Scientists at the U.S. Geological Survey have developed a new mapping tool, the Pedestrian Evacuation Analyst, for use by researchers and emergency managers to estimate how long it would take for someone to travel on foot out of a tsunami-hazard zone.

collage of scientists conducting science related to each mission are
September 8, 2014

The Pacific walrus population roughly halved between 1981 and 1999, the last year for which demographic data are available. A recent study by scientists at the U.S. Geological Survey quantifies this historic population decline.

USGS
July 24, 2014

Alaska — Due to climate change, some communities in rural Alaska and the Yukon Territory of Canada may face a future with fewer caribou according to new research published by the U.S. Geological Survey and the University of Alaska, Fairbanks in the recent issue of PLoS ONE.

USGS
July 9, 2014

Monitoring wildlife in the Arctic is difficult. Study areas are cold, barren and often inaccessible. For decades scientists have struggled to study animals, like polar bears, which live in these remote areas. Now researchers at the U.S. Geological Survey have begun testing a new, yet counterintuitive solution – rather then get close to the animals, monitor them from afar. 

USGS science for a changing world logo
July 3, 2014

As part of a continuing earthquake hazard study in the Seattle urban area, the U. S. Geological Survey will be conducting a series of seismic-reflection surveys starting July 10 on Mercer Island and the city of Seattle, Washington. The studies will conclude on or around July 19.

USGS science for a changing world logo
July 3, 2014

Starting on July 5 (weather permitting), U.S. Geological Survey scientists will conduct a high-resolution airborne survey over the next 30 days to study the distribution of minerals exposed at the surface in various parts of Alaska.

USGS science for a changing world logo
July 3, 2014

Starting on July 5 (weather permitting), U.S. Geological Survey scientists will conduct a high-resolution airborne survey over the next 30 days to study the distribution of minerals exposed at the surface in various parts of Alaska.

USGS
June 6, 2014

The first "point of view" video from a polar bear on Arctic sea ice has just become available courtesy of the U.S. Geological Survey. 

USGS science for a changing world logo
May 28, 2014

The U.S. Geological Survey is reducing its footprint on the Alaska Pacific University campus by closing the Map Store @ USGS to lower rent costs. The store will remain open through Oct. 31, 2014.

2014 US Topo map of the Keedysville, Maryland area.
May 22, 2014

US Topo maps now have a crisper, cleaner design - enhancing readability of maps for online and printed use. Map symbols are easier to read over the digital aerial photograph layer whether the imagery is turned on or off.