Researchers get organized to begin mass balance field work after skiing to Sperry Glacier.
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Researchers at Sperry Glacier
Researchers get organized to begin mass balance field work after skiing to Sperry Glacier.
Sperry Glacier snow core
Snow core measurements help scientists determine snow density, which is used to determine the mass balance of Sperry Glacier.
Snow core measurements help scientists determine snow density, which is used to determine the mass balance of Sperry Glacier.
Researchers on Sperry Glacier
Researchers get organized to begin mass balance field work after skiing to Sperry Glacier.
Researchers get organized to begin mass balance field work after skiing to Sperry Glacier.
Mule deer investigating a game camera in Madison Valley, Montana.
Mule deer investigating a game camera in Madison Valley, Montana.Mule deer investigating a game camera in Madison Valley, Montana.
Mule deer investigating a game camera in Madison Valley, Montana.
Mule deer investigating a game camera in Madison Valley, Montana.Mule deer investigating a game camera in Madison Valley, Montana.
Logan Glacier in Glacier National Park - 2016.
Large moraines at the base of Logan Glacier (2016) mark the extent of the glacier before it began its retreat around 1850 AD.
Large moraines at the base of Logan Glacier (2016) mark the extent of the glacier before it began its retreat around 1850 AD.
Swiftcurrent Glacier 2016 (port)
Swiftcurrent Glacier 2016 (port)
Hikers using ScienceCache
Hikers in Glacier National Park use the new USGS ScienceCache geocaching mobile application. This scientific geocaching mobile application framework consists of a website and app to help engage geo-cachers, youth, and scientists in citizen science.
Hikers in Glacier National Park use the new USGS ScienceCache geocaching mobile application. This scientific geocaching mobile application framework consists of a website and app to help engage geo-cachers, youth, and scientists in citizen science.
Grinnell Glacier, GNP - 2016
Grinnell Glacier, GNP - 2016
Grinnell Glacier, GNP - 2016 (terminus)
Grinnell Glacier, GNP - 2016 (terminus)
The Garden Wall weather station in Glacier National Park (elev. 7400)
The Garden Wall weather station in Glacier National Park (elev. 7400)The Garden Wall weather station in Glacier National Park (elev. 7400 feet) is used for avalanche research and forecasting along the Going-to-the-Sun Road. It records air temperature, relative humidity, wind speed and direction, and incoming and outgoing shortwave and longwave radiation.
The Garden Wall weather station in Glacier National Park (elev. 7400)
The Garden Wall weather station in Glacier National Park (elev. 7400)The Garden Wall weather station in Glacier National Park (elev. 7400 feet) is used for avalanche research and forecasting along the Going-to-the-Sun Road. It records air temperature, relative humidity, wind speed and direction, and incoming and outgoing shortwave and longwave radiation.
Grinnell Glacier, GNP - 2016
Grinnell Glacier, GNP - 2016
Invasive black and white tegu lizards (Salvator merianae).
Invasive black and white tegu lizards (Salvator merianae).Invasive black and white tegu lizards (Salvator merianae). USGS is working on development of tools for the detection and capture of invasive reptiles in Florida.
Invasive black and white tegu lizards (Salvator merianae).
Invasive black and white tegu lizards (Salvator merianae).Invasive black and white tegu lizards (Salvator merianae). USGS is working on development of tools for the detection and capture of invasive reptiles in Florida.
USGS employees and Flathead National Forest staff dig pits in the snow
USGS employees and Flathead National Forest staff dig pits in the snowUSGS employees and Flathead National Forest staff dig pits in the snow to examine snow structure and depth for avalanche research and forecasting in northwest Montana.
USGS employees and Flathead National Forest staff dig pits in the snow
USGS employees and Flathead National Forest staff dig pits in the snowUSGS employees and Flathead National Forest staff dig pits in the snow to examine snow structure and depth for avalanche research and forecasting in northwest Montana.
USGS staff ski to and from the Garden Wall weather station.
USGS staff ski to and from the Garden Wall weather station.USGS staff ski to and from the Garden Wall weather station in Glacier National Park (elev. 7400 feet) to complete maintenance and examine the snowpack for avalanche research.
USGS staff ski to and from the Garden Wall weather station.
USGS staff ski to and from the Garden Wall weather station.USGS staff ski to and from the Garden Wall weather station in Glacier National Park (elev. 7400 feet) to complete maintenance and examine the snowpack for avalanche research.
Grinnell Glacier in Glacier National Park - 2016
Grinnell Glacier (J Scurlock, 09/15/16) has retreated to the mostly shaded, upper confines of the basin.
Grinnell Glacier (J Scurlock, 09/15/16) has retreated to the mostly shaded, upper confines of the basin.
Grand Teton National Park, Wyoming
Leaves changing color in autumn at the edge of a river in Grand Teton National Park, Wyoming (2016).
Leaves changing color in autumn at the edge of a river in Grand Teton National Park, Wyoming (2016).
Grinnell Glacier Ridge 2016
Grinnell Glacier Ridge 2016
USGS personnel maintaining weather station on glacier
USGS personnel maintaining weather station on glacierUSGS personnel maintaining weather station on Sperry Glacier in Glacier National Park
USGS personnel maintaining weather station on glacier
USGS personnel maintaining weather station on glacierUSGS personnel maintaining weather station on Sperry Glacier in Glacier National Park
Greater Yellowstone Area ice patches, northwestern Wyoming
Greater Yellowstone Area ice patches, northwestern WyomingGreater Yellowstone Area ice patches, northwestern Wyoming
Greater Yellowstone Area ice patches, northwestern Wyoming
Greater Yellowstone Area ice patches, northwestern WyomingGreater Yellowstone Area ice patches, northwestern Wyoming
A Researcher Sampling Ancient Trees Emerging from an Ice Patch
A Researcher Sampling Ancient Trees Emerging from an Ice PatchDanny Stahle catalogs a sample taken from a Whitebark Pine (Pinus albicalus) that died ~5,300 years before present as conditions cooled and the ice patch expanded.
A Researcher Sampling Ancient Trees Emerging from an Ice Patch
A Researcher Sampling Ancient Trees Emerging from an Ice PatchDanny Stahle catalogs a sample taken from a Whitebark Pine (Pinus albicalus) that died ~5,300 years before present as conditions cooled and the ice patch expanded.
A Researcher Sampling Trees at an Ice Patch
Lucas watches Danny Stahle catalog a sample taken froma long frozen Whitebark Pine (Pinus albicalus).
Lucas watches Danny Stahle catalog a sample taken froma long frozen Whitebark Pine (Pinus albicalus).