planetary permafrost
Link: http://w3id.org/permafrost/v/ipaglossary/t0258
Within: IPA Permafrost Glossary
Definition: Permafrost occurring on other planetary bodies (planets, moons, asteroids).
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planetary permafrost
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| Comment |
The most extensive suite of permafrost-related features known is from Mars, where large volumes of water and/or ice are believed to exist beneath the planet's surface. Water ice, alone or in combination with methane ice and/or gas hydrates, is also believed to occur on moons of Jupiter (Callisto, Ganymede and Europa) and Saturn (Titan). Most of the moons and asteroids of the solar system are characterized by permafrost (temperature perennially below 0°C), but in the absence of any water they are all unfrozen, although cryotic. All the planetary bodies noted above include some frozen material.
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| dcterms:source |
https://doi.org/10.4224/20386561
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