Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
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Collecting water chemistry samples
Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
Preparing for a subsurface tracer test
Matt and Josh Koch preparing for a subsurface tracer test on the West Twin Creek hillslope.
Matt and Josh Koch preparing for a subsurface tracer test on the West Twin Creek hillslope.
A Common Murre swimming in the waters of Prince William Sound in 2015
A Common Murre swimming in the waters of Prince William Sound in 2015A Common Murre swimming in the waters of Prince William Sound, Alaska.
A Common Murre swimming in the waters of Prince William Sound in 2015
A Common Murre swimming in the waters of Prince William Sound in 2015A Common Murre swimming in the waters of Prince William Sound, Alaska.
Large storm surges in the Yukon-Kuskokwim Delta, AK
Large storm surges in the Yukon-Kuskokwim Delta, AKLarge storm surges in the Yukon-Kuskokwim Delta, AK lead to increased erosion and sedimentation of coastal waterways
Large storm surges in the Yukon-Kuskokwim Delta, AK
Large storm surges in the Yukon-Kuskokwim Delta, AKLarge storm surges in the Yukon-Kuskokwim Delta, AK lead to increased erosion and sedimentation of coastal waterways
Installing geophysical equipment northwest of Lake Clark Natl Park
Installing geophysical equipment northwest of Lake Clark Natl ParkUSGS scientist Beth Burton and helicopter pilot Drew Rose install geophysical equipment northwest of Lake Clark National Park, Alaska
Installing geophysical equipment northwest of Lake Clark Natl Park
Installing geophysical equipment northwest of Lake Clark Natl ParkUSGS scientist Beth Burton and helicopter pilot Drew Rose install geophysical equipment northwest of Lake Clark National Park, Alaska
Geologist checks a granitic rock before geochemistry and geochronology
Geologist checks a granitic rock before geochemistry and geochronologyUSGS geologist Erin Todd examines granitic rocks in outcrop before collecting samples for geochemistry and geochronology in Lake Clark National Park, Alaska.
Geologist checks a granitic rock before geochemistry and geochronology
Geologist checks a granitic rock before geochemistry and geochronologyUSGS geologist Erin Todd examines granitic rocks in outcrop before collecting samples for geochemistry and geochronology in Lake Clark National Park, Alaska.
Fledgling Arctic Warbler on the Seward Peninsula, Alaska
Fledgling Arctic Warbler on the Seward Peninsula, AlaskaFledgling Arctic Warbler on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystems Boreal-Arctic Transition Zone program.
Fledgling Arctic Warbler on the Seward Peninsula, Alaska
Fledgling Arctic Warbler on the Seward Peninsula, AlaskaFledgling Arctic Warbler on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystems Boreal-Arctic Transition Zone program.
R/V Alaskan Gyre in Prince William Sound, Alaska
R/V Alaskan Gyre in Prince William Sound, Alaska
R/V Alaskan Gyre in Prince William Sound, Alaska
Pulling in the mid-water trawl from the R/V Alaskan Gyre
Pulling in the mid-water trawl from the R/V Alaskan GyrePulling in the mid-water trawl from the R/V Alaskan Gyre
Pulling in the mid-water trawl from the R/V Alaskan Gyre
Pulling in the mid-water trawl from the R/V Alaskan GyrePulling in the mid-water trawl from the R/V Alaskan Gyre
Identifying and sorting clams by species
Identifying and sorting clams by species. This sample came from benthic trawls on the Norseman II.
Identifying and sorting clams by species. This sample came from benthic trawls on the Norseman II.
Field camp in the Yukon-Kuskokwim Delta, western AK
Field camp in the Yukon-Kuskokwim Delta, western AKField camp in the Yukon-Kuskokwim Delta, western AK, where USGS and other ecologists monitor impacts of climate changes, erosion, sedimentation, and flooding on coastal ecosystems
Field camp in the Yukon-Kuskokwim Delta, western AK
Field camp in the Yukon-Kuskokwim Delta, western AKField camp in the Yukon-Kuskokwim Delta, western AK, where USGS and other ecologists monitor impacts of climate changes, erosion, sedimentation, and flooding on coastal ecosystems
Panoramic view of Chakachamma Lake near Lake Clark, Alaska
Panoramic view of Chakachamma Lake near Lake Clark, AlaskaPanoramic view of entrance to Chakachamma Lake (near Lake Clark, Alaska).
Panoramic view of Chakachamma Lake near Lake Clark, Alaska
Panoramic view of Chakachamma Lake near Lake Clark, AlaskaPanoramic view of entrance to Chakachamma Lake (near Lake Clark, Alaska).
Pacific walrus hauled out on sea ice in the Chukchi Sea
Pacific walrus hauled out on sea ice in the Chukchi SeaPacific walrus hauled out on sea ice in the Chukchi Sea.
Pacific walrus hauled out on sea ice in the Chukchi Sea
Pacific walrus hauled out on sea ice in the Chukchi SeaPacific walrus hauled out on sea ice in the Chukchi Sea.
An Alaska Native village on the Yukon-Kuskokwim Delta, western AK
An Alaska Native village on the Yukon-Kuskokwim Delta, western AKAn Alaska Native village on the Yukon-Kuskokwim Delta, western AK
An Alaska Native village on the Yukon-Kuskokwim Delta, western AK
An Alaska Native village on the Yukon-Kuskokwim Delta, western AKAn Alaska Native village on the Yukon-Kuskokwim Delta, western AK
Male Arctic Warbler singing on the Seward Peninsula, Alaska
Male Arctic Warbler singing on the Seward Peninsula, AlaskaMale Arctic Warbler singing on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Male Arctic Warbler singing on the Seward Peninsula, Alaska
Male Arctic Warbler singing on the Seward Peninsula, AlaskaMale Arctic Warbler singing on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Eelgrass Survey in Alaska
Carol Damberg (USFWS) conducting survey of eelgrass (Zostera marina) in Izembek Lagoon, Alaska, 2015.
Carol Damberg (USFWS) conducting survey of eelgrass (Zostera marina) in Izembek Lagoon, Alaska, 2015.
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
Scientists wait for a helicopter pickup in the Neacola MountainsUSGS scientists Erin Todd and Jonathan Caine wait for a helicopter pickup at a geologic mapping and sampling station high in the Neacola Mountains, Alaska.
Scientists wait for a helicopter pickup in the Neacola Mountains
Scientists wait for a helicopter pickup in the Neacola MountainsUSGS 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 habitatAmerican 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
American Tree Sparrow in low to medium shrub thicket habitatAmerican 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
Four different phases of rock and high-temperature silicate fluidsCross-cutting relationships of at least 4 different phases of rock and high-temperature silicate fluids in a sample from the Lake Clark area.
Four different phases of rock and high-temperature silicate fluids
Four different phases of rock and high-temperature silicate fluidsCross-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
Red-throated Loon swimming near the Colville River, AlaskaA Red-throated Loon swimming in a small lake on the Colville River Delta.
Red-throated Loon swimming near the Colville River, Alaska
Red-throated Loon swimming near the Colville River, AlaskaA Red-throated Loon swimming in a small lake on the Colville River Delta.