Unified Interior Regions

Alaska

The Alaska Region represents a resource-rich, dynamic landscape shaped by volcanos, earthquakes, major rivers, and glaciers. Here, we conduct research to inform management of Alaska’s extensive natural resources, inform national Arctic energy policy, and provide scientific information to help others understand, respond to, and mitigate impacts from natural hazards.

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Sheridan River sonar
April 8, 2005

Sheridan River sonar

Sheridan River sonar

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.