open-system pingo
Link: http://w3id.org/permafrost/v/ipaglossary/t0223
Within: IPA Permafrost Glossary
Definition: A pingo formed by doming of frozen ground due to freezing of injected water supplied by groundwater moving downslope through taliks to the site of the pingo, where it moves towards the surface (see Figure 19b).
| Term |
open-system pingo
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| Comment |
Most open-system pingos are found in or near areas of marked relief, mainly in the discontinuous permafrost zone. High hydraulic potential, due to water originating in elevated areas, causes repeated injection of water into the weakest portion of the permafrost, followed by freezing. This leads to the development of the massive ice forming the core of the pingo.
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| dcterms:source |
https://doi.org/10.4224/20386561
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| skos:altLabel |
hydraulic pingo
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| skos:hiddenLabel |
East Greenland pingo
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