An Alaska Native village on the Yukon-Kuskokwim Delta, western AK
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An Alaska Native village on the Yukon-Kuskokwim Delta, western AK
An Alaska Native village on the Yukon-Kuskokwim Delta, western AK
Scientist taking measurements on cliff outcrop
USGS researcher Jonathan Caine measures vein orientation at an outcrop of late Cretaceous pluton in Lake Clark National Park.
USGS researcher Jonathan Caine measures vein orientation at an outcrop of late Cretaceous pluton in Lake Clark National Park.
Scientists wait for a helicopter pickup in the Neacola Mountains
USGS scientists Erin Todd and Jonathan Caine wait for a helicopter pickup at a geologic mapping and sampling station high in the Neacola Mountains, Alaska.
USGS scientists Erin Todd and Jonathan Caine wait for a helicopter pickup at a geologic mapping and sampling station high in the Neacola Mountains, Alaska.
American Tree Sparrow in low to medium shrub thicket habitat
American Tree Sparrow in low to medium shrub thicket habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
American Tree Sparrow in low to medium shrub thicket habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Four different phases of rock and high-temperature silicate fluids
Cross-cutting relationships of at least 4 different phases of rock and high-temperature silicate fluids in a sample from the Lake Clark area.
Cross-cutting relationships of at least 4 different phases of rock and high-temperature silicate fluids in a sample from the Lake Clark area.
Red-throated Loon swimming near the Colville River, Alaska
A Red-throated Loon swimming in a small lake on the Colville River Delta.
A Red-throated Loon swimming in a small lake on the Colville River Delta.
Wolverine glacier weather station, Alaska
Wolverine weather station collects weather data near the glacier to aid mass balance. Wolverine Glacier is in the Kenai Mountains on the coast of south-central Alaska. In 1966 scientists with the USGS began making direct measurements of surface mass balance at Wolverine Glacier, one of the "benchmark glaciers" in Alaska.
Wolverine weather station collects weather data near the glacier to aid mass balance. Wolverine Glacier is in the Kenai Mountains on the coast of south-central Alaska. In 1966 scientists with the USGS began making direct measurements of surface mass balance at Wolverine Glacier, one of the "benchmark glaciers" in Alaska.
Helicopter arriving to move geologists from Redoubt Volcano, Alaska
Helicopter arriving to pick up geologists after retrieving geophysical equipment from the flanks of Redoubt Volcano, Alaska, July 2015
Helicopter arriving to pick up geologists after retrieving geophysical equipment from the flanks of Redoubt Volcano, Alaska, July 2015
Biologists sorting through benthic invertebrates for bivalves
Biologists sorting through buckets of benthic invertebrates looking for bivalves onboard the Norseman II in the Chukchi Sea.
Biologists sorting through buckets of benthic invertebrates looking for bivalves onboard the Norseman II in the Chukchi Sea.
Benthic invertebrates captured in a bottom trawl
Benthic invertebrates captured in a bottom trawl. This was from the Ecosystem Shifts in Arctic Seas project.
Benthic invertebrates captured in a bottom trawl. This was from the Ecosystem Shifts in Arctic Seas project.
2015 benthic field sampling team
The 2015 benthic field sampling team Jannelle Trowbridge, Vanessa von Biela, Carolynn Harris, and Thomas Nguyen. This was from the Ecosystem Shifts in Arctic Seas project.
The 2015 benthic field sampling team Jannelle Trowbridge, Vanessa von Biela, Carolynn Harris, and Thomas Nguyen. This was from the Ecosystem Shifts in Arctic Seas project.
Jannelle Trowbridge sorts through benthic invertebrates for bivalves
ANSEP intern Jannelle Trowbridge sorts through a catch of benthic invertebrates for bivalves on the Norseman II. This was from the Ecosystem Shifts in Arctic Seas project.
ANSEP intern Jannelle Trowbridge sorts through a catch of benthic invertebrates for bivalves on the Norseman II. This was from the Ecosystem Shifts in Arctic Seas project.
Savannah Sparrow on a hummock in dwarf shrub meadow habitat
Savannah Sparrow on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Savannah Sparrow on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Whimbrel in dwarf shrub meadow habitat on the Seward Peninsula, Alaska
Whimbrel in dwarf shrub meadow habitat on the Seward Peninsula, Alaska.
Whimbrel in dwarf shrub meadow habitat on the Seward Peninsula, Alaska.
Whimbrel feeding on a hummock of dwarf shrub meadow habitat
Whimbrel feeding on a hummock of dwarf shrub meadow habitat.
Whimbrel feeding on a hummock of dwarf shrub meadow habitat.
Savannah Sparrow sitting on a hummock in dwarf shrub meadow habitat
Savannah Sparrow sitting on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Savannah Sparrow sitting on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Fire ecologists record post-fire information
Fire ecologists record post-fire information on tree mortality, fuel consumption, and vegetation communities to better understand and predict fire impacts, Kenai National Wildlife Refuge, AK
Fire ecologists record post-fire information on tree mortality, fuel consumption, and vegetation communities to better understand and predict fire impacts, Kenai National Wildlife Refuge, AK
Dan Esler staff photo 2015
Dan Esler at work.
Greater White-fronted Goose, Colville River Delta, northern Alaska
Greater White-fronted Goose on the Colville River Delta, northern Alaska.
Greater White-fronted Goose on the Colville River Delta, northern Alaska.
Pacific Loon swimming in a small lake near the Colville River, Alaska
A Pacific Loon swimming in a small lake on the Colville River delta.
A Pacific Loon swimming in a small lake on the Colville River delta.