Toklat River view from a bridge
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Bridge over Toklat River
Bridge crossing over Toklat River
Bridge crossing over Toklat River
Remnants of a spruce forest
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.
Scientist lowering the CTD on the R/V Alaskan Gyre
Scientist lowering the CTD on the R/V Alaskan GyreMayumi Arimitsu lowering the instrument to measure oceanographic data from the R/V Alaskan Gyre
Scientist lowering the CTD on the R/V Alaskan Gyre
Scientist lowering the CTD on the R/V Alaskan GyreMayumi Arimitsu lowering the instrument to measure oceanographic data from the R/V Alaskan Gyre
Scientist lowering CTD equipment into the water
Mayumi Arimitsu lowering the CTD equipment into the water.
Mayumi Arimitsu lowering the CTD equipment into the water.
Mayumi Arimitsu sorting forage fish on the R/V Alaskan Gyre
Mayumi Arimitsu sorting forage fish on the R/V Alaskan GyreMayumi Arimitsu sorting through fish caught in the mid-water trawl on the R/V Alaskan Gyre
Mayumi Arimitsu sorting forage fish on the R/V Alaskan Gyre
Mayumi Arimitsu sorting forage fish on the R/V Alaskan GyreMayumi Arimitsu sorting through fish caught in the mid-water trawl on the R/V Alaskan Gyre
Scientist emptying the trawl contents in a large bucket
Scientist emptying the trawl contents in a large bucketMayumi Arimitsu emptying the trawl contents in a large bucket in Prince William Sound.
Scientist emptying the trawl contents in a large bucket
Scientist emptying the trawl contents in a large bucketMayumi Arimitsu emptying the trawl contents in a large bucket in Prince William Sound.
Examining 2008 Eruption of Okmok Volcano in Alaska
Examining 2008 Eruption of Okmok Volcano in AlaskaProfessor Michael Ort (Northern Arizona University) and graduate student Joel Unema examine deposits from the 2008 eruption of Okmok volcano in Alaska as part of their research to reconstruct the complex history of the eruption. Dr.
Examining 2008 Eruption of Okmok Volcano in Alaska
Examining 2008 Eruption of Okmok Volcano in AlaskaProfessor Michael Ort (Northern Arizona University) and graduate student Joel Unema examine deposits from the 2008 eruption of Okmok volcano in Alaska as part of their research to reconstruct the complex history of the eruption. Dr.
A north slope camp
An enhanced photo of camp on the north slope.
An enhanced photo of camp on the north slope.
Sorting through invertebrates from a north slope lake of Alaska
Sorting through invertebrates from a north slope lake of AlaskaAs part of the Changing Arctic Ecosystem project, two biologists sampling invertebrates near the Chipp River area.
Sorting through invertebrates from a north slope lake of Alaska
Sorting through invertebrates from a north slope lake of AlaskaAs part of the Changing Arctic Ecosystem project, two biologists sampling invertebrates near the Chipp River area.
Ice wedge polygons on the north slope of Alaska
Ice wedge polygons near the Chipp River area on the north slope of Alaska
Ice wedge polygons near the Chipp River area on the north slope of Alaska
Ruddy Turnstone
The avian paramyxovirus is found across the planet, infect wild and domestic birds, and sometimes lead to disease outbreaks, but according to a new study led by the USGS, wild ducks and shorebirds do not appear to carry these viruses, which can lead to Newcastle disease that sickens or kills poultry.
The avian paramyxovirus is found across the planet, infect wild and domestic birds, and sometimes lead to disease outbreaks, but according to a new study led by the USGS, wild ducks and shorebirds do not appear to carry these viruses, which can lead to Newcastle disease that sickens or kills poultry.
Whimbrel chick on the Colville River Delta, Alaska
Whimbrel chick on the Colville River Delta, AlaskaWhimbrel chick on the Colville River Delta, Alaska.
Whimbrel chick on the Colville River Delta, Alaska
Whimbrel chick on the Colville River Delta, AlaskaWhimbrel chick on the Colville River Delta, Alaska.
Male King Eider
King Eiders are well adapted to the frigid climate of the Arctic. These birds feed on mollusks and can reach depths up to 150 meters when diving in the ocean.
King Eiders are well adapted to the frigid climate of the Arctic. These birds feed on mollusks and can reach depths up to 150 meters when diving in the ocean.
Instrumentation Array, Beaver Creek Near Michael Lake, Alaska
Instrumentation Array, Beaver Creek Near Michael Lake, AlaskaInstrumentation array with a YSI multiparameter sonde, a dissolved CO2 sensor, and a CDOM sensor.
Instrumentation Array, Beaver Creek Near Michael Lake, Alaska
Instrumentation Array, Beaver Creek Near Michael Lake, AlaskaInstrumentation array with a YSI multiparameter sonde, a dissolved CO2 sensor, and a CDOM sensor.
Instrumentation Array, Beaver Creek Above Victoria Creek, Alaska
Instrumentation Array, Beaver Creek Above Victoria Creek, AlaskaInstrumentation array with a YSI multiparameter sonde, a dissolved CO2 sensor, and a CDOM sensor.
Instrumentation Array, Beaver Creek Above Victoria Creek, Alaska
Instrumentation Array, Beaver Creek Above Victoria Creek, AlaskaInstrumentation array with a YSI multiparameter sonde, a dissolved CO2 sensor, and a CDOM sensor.
Andy Reeves Staff Photo
Andy Reeves is holding a Glaucous Gull that was capture, sampled for avian influenza and banded near Barrow, Alaska.
Andy Reeves is holding a Glaucous Gull that was capture, sampled for avian influenza and banded near Barrow, Alaska.
Setting up GPS system before mapping Nome Creek Experimental Watershed
Setting up GPS system before mapping Nome Creek Experimental WatershedJosh Koch and Steve Jepsen set up a GPS system before starting a day of mapping in the Nome Creek Experimental Watershed. https://www.usgs.gov/centers/asc/science/nome-creek-experimental-watershed?qt-science_
Setting up GPS system before mapping Nome Creek Experimental Watershed
Setting up GPS system before mapping Nome Creek Experimental WatershedJosh Koch and Steve Jepsen set up a GPS system before starting a day of mapping in the Nome Creek Experimental Watershed. https://www.usgs.gov/centers/asc/science/nome-creek-experimental-watershed?qt-science_
The old Kennecott copper mill from the north side
The old Kennecott copper mill from the north. Kennecott was once a thriving mine and mill during the early 1900s. The mines are 5 miles up the mountain.
The old Kennecott copper mill from the north. Kennecott was once a thriving mine and mill during the early 1900s. The mines are 5 miles up the mountain.
Ice Out on Yukon River, Pilot Station, Alaska
Panoramic image of ice break up on the Yukon River at Pilot Station, Alaska.
Panoramic image of ice break up on the Yukon River at Pilot Station, Alaska.
Ice Out on Yukon River, Pilot Station, Alaska
Spring breakup on May 21 on the Yukon River at Pilot Station, Alaska.
Spring breakup on May 21 on the Yukon River at Pilot Station, Alaska.