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: 2,329
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Year Published: 2009

Geomorphology and river dynamics of the lower Copper River, Alaska

Located in south-central Alaska, the Copper River drains an area of more than 24,000 square miles. The average annual flow of the river near its mouth is 63,600 cubic feet per second, but is highly variable between winter and summer. In the winter, flow averages approximately 11,700 cubic feet per second, and in the summer, due to snowmelt,...

Brabets, Timothy P.; Conaway, Jeffrey S.
Geomorphology and River Dynamics of the Lower Copper River, Alaska; 2009; SIR; 2009-5257; Brabets, Timothy P.; Conaway, Jeffrey S.

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Year Published: 2009

Enumeration of Pacific walrus carcasses on beaches of the Chukchi Sea in Alaska following a mortality event, September 2009

On September 14, 2009, we encountered substantial numbers of fresh walrus carcasses on the Alaskan shores of the Chukchi Sea near Icy Cape. We enumerated 131 carcasses using geo-referenced strip transect photography and visual counts of solitary carcasses. All appeared to be young animals based on review of aerial photographs and reference to 12...

Fischbach, Anthony S.; Monson, Daniel H.; Jay, C.V.
Enumeration of Pacific Walrus Carcasses on Beaches of the Chukchi Sea in Alaska Following a Mortality Event, September 2009; 2009; OFR; 2009-1291; Fischbach, A. S.; Monson, D. H.; Jay, C. V.

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Year Published: 2009

Europium-rich dark monazite - a potential new ore mineral for Alaska, USA?

Tripp, Richard B.; Benzel, William M.; Adams, David T.; Lowers, Heather A.; Lee, Gregory K.; Bailey, Elizabeth A.

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Year Published: 2009

Application of the multi-dimensional surface water modeling system at Bridge 339, Copper River Highway, Alaska

The Copper River Basin, the sixth largest watershed in Alaska, drains an area of 24,200 square miles. This large, glacier-fed river flows across a wide alluvial fan before it enters the Gulf of Alaska. Bridges along the Copper River Highway, which traverses the alluvial fan, have been impacted by channel migration. Due to a major channel change in...

Brabets, Timothy P.; Conaway, Jeffrey S.
Application of the Multi-Dimensional Surface Water Modeling System at Bridge 339, Copper River Highway, Alaska; 2009; OFR; 2009-1237; Brabets, Timothy P.; Conaway, Jeffrey S.

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Year Published: 2009

Channel Incision and Water-Table Decline Along a Recently Formed Proglacial Stream, Mendenhall Valley, Southeastern Alaska

Retreat of the Mendenhall Glacier, in southeastern Alaska, resulted in the formation of Mendenhall Lake, which has reduced the supply of coarse sediment to the proglacial Mendenhall River. Channel geometry surveys conducted in 1969 and 1998 over a 5.3 km reach of the Mendenhall River revealed reductions in mean bed elevations ranging from 0.4 to 1...

Neal, Edward G.
Channel Incision and Water-Table Decline Along a Recently Formed Proglacial Stream, Mendenhall Valley, Southeastern Alaska; 2009; PP; 1760-E; Studies by the U.S. Geological Survey in Alaska, 2007; Neal, Edward G.

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Year Published: 2009

Detrital Zircon Geochronology of Cretaceous and Paleogene Strata Across the South-Central Alaskan Convergent Margin

Ages of detrital zircons are reported from ten samples of Lower Cretaceous to Paleogene metasandstones and sandstones from the Chugach Mountains, Talkeetna Mountains, and western Alaska Range of south-central Alaska. Zircon ages are also reported from three igneous clasts from two conglomerates. The results bear on the regional geology,...

Bradley, Dwight; Haeussler, Peter J.; O'Sullivan, Paul; Friedman, Rich; Till, Alison; Bradley, Dan; Trop, Jeff
Detrital Zircon Geochronology of Cretaceous and Paleogene Strata Across the South-Central Alaskan Convergent Margin; 2009; PP; 1760-F; Studies by the U.S. Geological Survey in Alaska, 2007; Bradley, Dwight; Haeussler, Peter; O'Sullivan, Paul; Friedman, Rich; Till, Alison; Bradley, Dan; Trop, Jeff

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Year Published: 2009

Volcanic processes and Geology of Augustine Volcano, Alaska

Augustine Island (volcano) in lower Cook Inlet, Alaska, has erupted repeatedly in late-Holocene and historical times. Eruptions typically beget high-energy volcanic processes. Most notable are bouldery debris avalanches containing immense angular clasts shed from summit domes. Coarse deposits of these avalanches form much of Augustine's lower...

Waitt, Richard B.; Beget, James E.
Volcanic processes and geology of Augustine Volcano, Alaska; 2009; PP; 1762; Waitt, Richard B.; Beget, James E.

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Year Published: 2009

Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2008

Between January 1 and December 31, 2008, the Alaska Volcano Observatory (AVO) located 7,097 earthquakes of which 5,318 occurred within 20 kilometers of the 33 volcanoes monitored by the AVO. Monitoring highlights in 2008 include the eruptions of Okmok Caldera, and Kasatochi Volcano, as well as increased unrest at Mount Veniaminof and Redoubt...

Dixon, James P.; Stihler, Scott D.

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Year Published: 2009

Black and Brown Bear Activity at Selected Coastal Sites in Glacier Bay National Park and Preserve, Alaska: A Preliminary Assessment Using Noninvasive Procedures

A number of efforts in recent years have sought to predict bear activity in various habitats to minimize human disturbance and bear/human conflicts. Alaskan coastal areas provide important foraging areas for bears (Ursus americanus and U. arctos), particularly following den emergence when there may be no snow-free foraging alternatives....

Partridge, Steve; Smith, Tom; Lewis, Tania
Black and Brown Bear Activity at Selected Coastal Sites in Glacier Bay National Park and Preserve, Alaska: A Preliminary Assessment Using Noninvasive Procedures; 2009; OFR; 2009-1169; Partridge, Steve; Smith, Tom; Lewis, Tania

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Year Published: 2009

The January 2006 volcanic-tectonic earthquake swarm at Mount Martin, Alaska

On January 8, 2006, a swarm of volcanic-tectonic earthquakes began beneath Mount Martin at the southern end of the Katmai volcanic cluster. This was the first recorded swarm at Mount Martin since continuous seismic monitoring began in 1996. The number of located earthquakes increased during the next four days, reaching a peak on January 11. For...

Dixon, James P.; Power, John A.
The January 2006 volcanic-tectonic earthquake swarm at Mount Martin, Alaska; 2009; PP; 1760-D; Studies by the U.S. Geological Survey in Alaska, 2007; Dixon, James P.; Power, John A.

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Year Published: 2009

The Longview/Lakeview Barite Deposits, Southern National Petroleum Reserve, Alaska (NPRA) - Potential-Field Models and Preliminary Size Estimates

Longview and Lakeview are two of the larger stratiform barite deposits hosted in Mississippian Akmalik Chert in the Cutaway Basin area (Howard Pass C-3 quadrangle) of the southern National Petroleum Reserve, Alaska (NPRA). Geologic studies for the South NPRA Integrated Activity Plan and Environmental Impact Statement process included an attempt to...

Schmidt, Jeanine M.; Glen, Jonathan M.G.; Morin, Robert L.
The Longview/Lakeview Barite Deposits, Southern National Petroleum Reserve, Alaska (NPRA) - Potential-Field Models and Preliminary Size Estimates; 2009; PP; 1760-C; Studies by the U.S. Geological Survey in Alaska, 2007; Schmidt, Jeanine M.; Glen, Jonathan M. G.; Morin, Robert L.

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Year Published: 2009

Guide to Surficial Geology and River-Bluff Exposures, Noatak National Preserve, Northwestern Alaska

From its origin in rugged granitic highlands of the central Brooks Range, the Noatak River flows westward between the De Long Mountains and the Baird Mountains before turning south to enter Kotzebue Sound. Glaciers of middle and late Pleistocene age entered the Noatak River valley from the east, north, and south. Glaciers flowed down the upper...

Hamilton, Thomas D.
Guide to Surficial Geology and River-Bluff Exposures, Noatak National Preserve, Northwestern Alaska; 2009; SIR; 2008-5125; Hamilton, Thomas D.

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: 987
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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Makushin volcano

Makushin Volcano

This camera is located at MREP, on the southeast flank of Makushin, and looks northwest towards Makushin's summit. Read more about Makushin volcano.

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

...

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.