Water by the numbers in rural Alaska

22% of rural Alaska homes lack running water and a flush toilet, according to the Alaska Department of Environmental Conservation – Division of Water. Photographer Clark James Mishler described the difference between living in an urban Anchorage residence and living in parts of rural Alaska as stark: “It’s like living in a third world country, […]

Food security and subsistence in Alaska

About 95% of the food people in Alaska purchase is imported. “That’s a problem,” photographer Clark James Mishler told Frontier Scientists. One of his dreams is to “Help build a sustainable food system for Alaska.” Subsistence activities are one puzzle piece of a sustainable food system. Subsistence harvests in Alaska contribute to food security and […]

Hubbard, Daanen, Darrow

New videos about Frozen Debris Lobes, geohazards

February 24 2015— Slow landslides in permafrost slide downhill on mountain slopes in the Brooks Range of Alaska. These massive frozen debris lobes are geohazards. They pose a potential threat to the Dalton Highway, Alaska’s lone road to the North Slope. There are 23 identified frozen debris lobes situated less than one mile uphill from […]

Many angles to decode frozen debris lobes

“Something chewed on the casing,” Margaret Darrow explained. “Probably a bear.” Blue chips were scattered from the cracked ABS pipe. Inside the casings that protect the holes drilled in and around frozen debris lobe -A there’s non-toxic propylene glycol. Propylene glycol, this brand a clear greenish liquid, prevents freezing – helpful for scientific instruments – […]

Effective stress and FDL science

“It’s a very dynamic slope,” Margaret Darrow said, standing in front of frozen debris lobe -A. FDL-A is a slow landslide; among the frozen debris lobes documented it’s the closest to the Dalton Highway and the Trans-Alaska Pipeline. Although the lobes likely began their life as debris left over when Pleistocene glaciers disappeared 10 to […]

Temperamental machinery and FDL science

When the machinery mounted to the man-height pole announced “RTK initialized,” the scientists gave a cheer. It was late afternoon and the morning’s downpour had finally cleared. They were gathered in a sunny spot discussing what was still on the agenda for the day when the rover – the pole and its paramount differential GPS […]

FDL thaw slump

On the back of the beast

We’ve joined scientists atop a frozen debris lobe, a slow-moving landslide in permafrost. They say we’re ‘on the back of the beast’. In the heavy rain and among fog-shrouded mountains, the scientists are making these uphill treks to record how temperature, water pressure, and local geological properties determine the slope movement of the massive lobes. […]

Dalton Highway Trans Alaska Pipeline.

Acceleration, and age-old frozen debris lobes

Less than one mile upslope from Alaska’s Dalton Highway, there are 23 frozen debris lobes looming. Frozen debris lobes (FDLs) are something like a cross between a landslide and a glacier. They’re silty sand and gravel, stones, icy frozen soil as well as liquid water kept from freezing by the intense pressure of the slow-motion push downhill. […]