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Permafrost - Wikipedia
Permafrost is soil, rock or sediment that is frozen for more than two consecutive years . In practice, this means that permafrost occurs at a mean annual temperature of 0 °C (32.0 °F) or below. In the coldest regions, the depth of continuous permafrost can exceed 1,400 m (4,600 ft).
en.wikipedia.org
en.wikipedia.org
What Is Permafrost? - NASA Climate Kids
Permafrost is any ground that remains completely frozen—32°F (0°C) or colder—for at least two years straight ...
climatekids.nasa.gov
climatekids.nasa.gov
Permafrost on Steam
Embark on a brutal journey of survival in a perpetual winter. Hunt and gather resources for building and utilize deep survival mechanics to craft your way ...
store.steampowered.com
store.steampowered.com
permafrost
permafrost (ˈpɜːməfrɒst) [f. permanent a. (n.) + frost n.] Subsoil or other underground material that is at a temperature of less than 0°C throughout the year, as in Arctic regions; permanently frozen ground.1943 S. W. Muller Permafrost or Permanently Frozen Ground 3 The expression ‘permanently froz...
Oxford English Dictionary
prophetes.ai
Arctic Change - Land: Permafrost - NOAA/PMEL
Permafrost is permanently frozen ground. For example, in Fairbanks, Alaska, the soil is frozen just some 30 to 40 centimeters below the surface.
www.pmel.noaa.gov
www.pmel.noaa.gov
Permafrost | Definition, Thawing, & Facts | Britannica
Permafrost, perennially frozen ground, a naturally occurring material with a temperature colder than 0 °C (32 °F) continuously for two or more years.
www.britannica.com
www.britannica.com
Permafrost Pathways: Home
Permafrost is perennially frozen ground that, as it thaws, is causing the land to collapse, creating an environmental justice crisis for Arctic residents.
permafrost.woodwellclimate.org
permafrost.woodwellclimate.org
Frozen Ground & Permafrost | National Snow and Ice Data Center
Permafrost is ground that is frozen for at least two years. In many cases, permafrost has existed for many thousands of years and can be thousands of feet deep.
nsidc.org
nsidc.org
Permafrost | MIT Climate Portal
Permafrost is ground that remains frozen for two or more years, and it lies beneath a vast portion of the Earth's surface.
climate.mit.edu
climate.mit.edu
Permafrost Discovery Gateway - Arctic Data Center
This infrastructure dataset of Alaska represents a combination of two map products: 1) OpenStreetMap and 2) Infrastructure (buildings and roads) mapped from 0. ...
arcticdata.io
arcticdata.io
Hydrology & Surficial Geology - Permafrost
Permafrost, defined as ground with a temperature that remains at or below freezing (32° F or 0° C) for two or more consecutive years, provides a stable ...
dggs.alaska.gov
dggs.alaska.gov
permafrost
permafrost/ˈpɜ:məfrɔst; ?@ -frɔ:st; `pəməˌfrɔst/ n[U]subsoil that is permanently frozen, eg in polar regions 永冻土, 永冻层（如在极地的）.
牛津英汉双解词典
prophetes.ai
Scientists Study Thawed 'Zombie Virus' from Siberian Permafrost
Nov 30, 2022The researchers cautioned that their work points to a potential public health risk posed by climate change. The scientists studied 13 new pathogens that they called "zombie viruses," and "found ...
www.snopes.com
Sea of methane sealed beneath Arctic permafrost could trigger climate ...
Dec 20, 2023Deep beneath the permafrost that blankets a group of islands in the Arctic Ocean lurks a growing and migrating sea of methane, researchers have discovered. The thick permafrost, ...
www.livescience.com
The Unusual Connection Between Beavers, Permafrost and ... - HowStuffWorks
Using their famous teeth, beavers are chewing down shrubs as well as using moss, sedges and mud to build dams and form ponds in the tundra. Beavers are known to completely alter landscapes and create miniature wetlands, he says. Scientists observed the number of beaver dams increased from two to 98 from 2002 to 2019 — five new dams per year ...
science.howstuffworks.com