A tributary at the arctic-boreal transition in the Agashashok River Watershed
Images
Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
A tributary at the arctic-boreal transition in the Agashashok River Watershed
Semipalmated Sandpiper on the Colville River Delta, Alaska
Semipalmated Sandpiper on the Colville River Delta, AlaskaA Semipalmated Sandpiper on the bow of a boat on the Colville River Delta in northern Alaska. This picture was taken during the Changing Arctic Ecosytems project. The band recoveries of this species were from as far away as Peru. These birds are only about 25 grams a piece.
Semipalmated Sandpiper on the Colville River Delta, Alaska
Semipalmated Sandpiper on the Colville River Delta, AlaskaA Semipalmated Sandpiper on the bow of a boat on the Colville River Delta in northern Alaska. This picture was taken during the Changing Arctic Ecosytems project. The band recoveries of this species were from as far away as Peru. These birds are only about 25 grams a piece.
Adult male Bluethroat with bands on the Seward Peninsula, Alaska
Adult male Bluethroat with bands on the Seward Peninsula, AlaskaAdult male Bluethroat with bands on the Seward Peninsula in Alaska.
Adult male Bluethroat with bands on the Seward Peninsula, Alaska
Adult male Bluethroat with bands on the Seward Peninsula, AlaskaAdult male Bluethroat with bands on the Seward Peninsula in Alaska.
A Pacific Loon taking off from a small lake near the Colville River Delta in northern Alaska.
A Pacific Loon taking off from a small lake near the Colville River Delta in northern Alaska.
Two Black Brant in a wetland near the Colville River Delta
Two Black Brant in a wetland near the Colville River DeltaTwo Black Brant in a wetland near the Colville River Delta.
Two Black Brant in a wetland near the Colville River Delta
Two Black Brant in a wetland near the Colville River DeltaTwo Black Brant in a wetland near the Colville River Delta.
Canada Goose on the Colville River Delta
Canada Goose on the Colville River Delta
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territoriesTwo snow geese and a single black brant goose fight over nesting territories on the Colville River Delta in Alaska.
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territoriesTwo snow geese and a single black brant goose fight over nesting territories on the Colville River Delta in Alaska.
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AK
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AKPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AK
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AKPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services
Assessing the severity of the Funny River fire on the Kenai Peninsula
Assessing the severity of the Funny River fire on the Kenai PeninsulaPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services.
Assessing the severity of the Funny River fire on the Kenai Peninsula
Assessing the severity of the Funny River fire on the Kenai PeninsulaPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services.
Black Brant flying near the Colville River, northern Alaska
Black Brant flying near the Colville River, northern AlaskaBlack Brant flying near the Colville River, northern Alaska.
Black Brant flying near the Colville River, northern Alaska
Black Brant flying near the Colville River, northern AlaskaBlack Brant flying near the Colville River, northern Alaska.
Near the top of the Tusuk Channel of the Pilgrim River.
Near the top of the Tusuk Channel of the Pilgrim River.
Reburns are becoming more common in many parts of Alaska
Reburns are becoming more common in many parts of AlaskaReburns, or fires that burn more frequently than expected, are becoming more common in Alaska and can cause major changes in vegetation composition, wildlife habitat, and landscape resilience
Reburns are becoming more common in many parts of Alaska
Reburns are becoming more common in many parts of AlaskaReburns, or fires that burn more frequently than expected, are becoming more common in Alaska and can cause major changes in vegetation composition, wildlife habitat, and landscape resilience
Scientists collecting snow core sample on Sperry Glacier in Glacier National Park, Montana
Scientists collecting snow core sample on Sperry Glacier in Glacier National Park, MontanaScientists collecting snow core samples on Sperry Glacier in Glacier National Park, Montana.
Scientists collecting snow core sample on Sperry Glacier in Glacier National Park, Montana
Scientists collecting snow core sample on Sperry Glacier in Glacier National Park, MontanaScientists collecting snow core samples on Sperry Glacier in Glacier National Park, Montana.
Salcha River bridge near Salchaket
Salcha River bridge near Salchaket
Nenana River sonar top near Windy
Nenana River sonar top near Windy
Karyn Rode examines a polar bear in the Chukchi Sea
Karyn Rode examines a polar bear in the Chukchi SeaKaryn Rode examines a polar bear in the Chukchi Sea in April of 2015. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Karyn Rode examines a polar bear in the Chukchi Sea
Karyn Rode examines a polar bear in the Chukchi SeaKaryn Rode examines a polar bear in the Chukchi Sea in April of 2015. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Researchers use ground penetrating radar to determine the depth of the snow on Wolverine Glacier in Alaska.
Researchers use ground penetrating radar to determine the depth of the snow on Wolverine Glacier in Alaska.
Sea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of iceSea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of iceSea ice blocks pushed up in a pressure ridge of ice
Polar bear wearing a GPS satellite video-camera collar
Polar bear wearing a GPS satellite video-camera collarAn adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Polar bear wearing a GPS satellite video-camera collar
Polar bear wearing a GPS satellite video-camera collarAn adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Spring fieldwork on the Benchmark Glaciers involves digging deep snow pits to measure the density profile of the surface snowpack.
Spring fieldwork on the Benchmark Glaciers involves digging deep snow pits to measure the density profile of the surface snowpack.
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight