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pingo
Introduction References & Edit History Related Topics
Images
pingo Diagram comparing open-system and closed-system pingos, showing cross-sections of dome-shaped hills formed in permafrost. The left side illustrates open-system pingo formation with artesian pressure pushing water upward beneath discontinuous permafrost, forming an ice lens and raising the ground. The right side shows closed-system pingo formation, where advancing permafrost traps water from a residual lake, creating hydrostatic pressure that forms an ice lens and lifts the surface. Both processe Pingo (hill caused by upheaval of permafrost) in the Mackenzie River delta near Tuktoyaktuk, northwestern Northwest Territories, Can. pingo
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pingo: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Media added. Jun 10, 2016
Photo of a tundra landscape with two pingos added. Jan 22, 2015
Text added clarifying open- and closed-system pingos. Jan 22, 2015
Add new Web site: The Canadian Encyclopedia - Pingo. Nov 20, 2014
Added new Web site: The Canadian Encyclopedia - Pingo. Apr 17, 2008
Added new Web site: Parks Canada - Pingo Canadian Landmark. Apr 17, 2008
Article added to new online database. Jul 20, 1998
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