Images

Recent tundra fire scar, Noatak National Preserve.

Patterned ground along the Noatak River, Noatak National Preserve.  Dominant ecotypes include Riverine Loamy Wet Circumacidic Wet Sedge Meadow, Riverine Loamy Moist Circumacidic Birch-Willow Low Shrub, Riverine Gravelly Moist Circumalkaline Barrens, and Riverine Gravelly Dry Alkaline Dryas Dwarf Shrub. 

Ancient shorelines, Cape Krusenstern National Monument.

South shore, Walker Lake, Gates of the Arctic National Park and Preserve.  Dominant ecotypes include Upland Moist Dwarf Birch-Ericaceous-Willow Low Shrub, Upland Rocky-loamy Moist Circumacidic Alder-Willow Tall Shrub, and Upland Loamy Moist Circumalkaline Willow Low Shrub. 

Thermokarst lake, Seward Peninsula.

Recovered river meanders along Kobuk River, Kobuk Valley National Park.  Dominant ecotypes include Riverine Water, Riverine Loamy Moist Alder or Willow Tall Shrub, Riverine Gravelly-loamy Moist Circumalkaline White Spruce-Willow Forest, and Riverine Loamy Wet Circumacidic Wet Sedge Meadow. 

Coastal shorelines, Cape Espenberg, Bering Land Bridge National Preserve, Seward Peninsula

Sea ice in the Chukchi Sea in 2013.

Scientists preparing the CTD for deployment for habitat sampling

Pacific walrus resting on ice in the Chukchi Sea, Alaska. This field work was part a satellite tagging expedition in the northwest Chukchi Sea to understand movement patterns, foraging behaviors of walruses and important summering habitats.

An arctic fox on the tundra of the north slope of Alaska near a field camp of the Alaska Science Center.

A view of the inflatable boat rack on the back of the R/V Alaskan Gyre

Arctic fox depredates a nesting female white-fronted goose.  Arctic Coastal Plain of Alaska, USA.

Semipalmated Sandpiper on the Arctic Coastal Plain, Alaska.

A waterfall flowing into Exit Creek

Exit Creek in front of some mountains

Tundra Swan swimming on a lake in northern Alaska.

Banded Greater White-fronted geese flying in northern Alaska.

This image also provides a clear view of the Juneau Icefield. Several glaciers flow from this icefield, and glaciologists are using the 42-year Landsat archive to monitor the advance and retreat of the glaciers over time.

Greater White-fronted Goose on the North Slope of Alaska, in the Chipp South area.

Incubating female white-fronted goose assumes hiding posture in response to vehicular traffic while the gander stands guard.  Arctic Coastal Plain of Alaska, USA.