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- Pingos - Geophysical Institute
Pingos which are formed in the open tundra of continuous permafrost zones are called "closed-system" pingos In essence, this means that the pingo grows without the addition of further water from an outside source In discontinuous permafrost zones where there is some permeable ground "open-system pingos can form
- The view from inside a pingo | Geophysical Institute
Pingos form in the Interior because of permafrost—soil that remains frozen for at least one year Ice-rich permafrost in valley bottoms is a barrier to artesian groundwater (water under pressure that wants to flow upward), but springs sometimes bubble up through small fractures in the frozen ground, allowing water to escape toward the surface
- Pingos in the Present Tense - Geophysical Institute
Ozawa has found that the soil beneath arctic pingos contains supercooled water--liquid water colder than 32 degrees F or 0 degrees C It can't freeze there, he says, because the soil is made up of grains so tiny that there isn't room between them for ice crystals to form Now, Ozawa wouldn't run into many arguments about water in and under pingos
- Presto, Chango, Pingo, But on a Very Long Time Scale
Surface blisters or ice mounds 50 to 500 feet across that thrust up from otherwise flat terrain are called pingos Presto, Chango, Pingo, But on a Very Long Time Scale | Geophysical Institute Skip to main content
- Language to Match Our Landscape | Geophysical Institute
Secretly, most Alaskans are grateful when the tourists arrive I'm not talking here about the busloads of folks on packaged tours, though we can be thankful for their support of the economy
- Water fountains in the tundra | Geophysical Institute
Permafrost researcher Kenji Yoshikawa said sometimes pingos and frost blisters generate fountains He thinks what we saw might be related to a frost blister, a pimple caused when freezing ground in early winter blocks groundwater already restricted from beneath by permafrost The fountain we saw might be what happened when the pimple popped
- Northern news from a big conference | Geophysical Institute
How big is the American Geophysical Union Fall Meeting held in San Francisco every December? So big it’s like everyone from Barrow attending on Monday
- UAF scientists find new indicators of Alaska permafrost thawing
More areas of year-round unfrozen ground have begun dotting Interior and Northwest Alaska and will continue to increase in extent due to climate change, according to new research by University of Alaska Fairbanks Geophysical Institute scientists
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