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gptkbp:instanceOf
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gptkb:Soil
gptkb:Geological_phenomenon
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gptkbp:activeLayerThaws
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Seasonally
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gptkbp:affects
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gptkb:infrastructure
Ecosystems
Carbon cycle
|
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gptkbp:contains
|
gptkb:Soil
gptkb:Ice
Organic material
|
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gptkbp:covers
|
About 24% of Northern Hemisphere land
|
|
gptkbp:defines
|
Ground that remains at or below 0°C for at least two consecutive years
|
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gptkbp:depthRange
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A few centimeters to over 1,500 meters
|
|
gptkbp:firstDescribed
|
gptkb:Alexander_von_Middendorff
1830s
|
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gptkbp:foundIn
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gptkb:Alpine_regions
gptkb:Antarctic
gptkb:Arctic
|
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gptkbp:monitors
|
gptkb:Global_Terrestrial_Network_for_Permafrost
gptkb:International_Permafrost_Association
|
|
gptkbp:studiedBy
|
Cryology
|
|
gptkbp:thawingCauses
|
Landslides
Ground subsidence
Release of ancient microbes
|
|
gptkbp:thawingReleases
|
gptkb:Methane
Carbon dioxide
|
|
gptkbp:thawsDueTo
|
Climate change
Rising temperatures
|
|
gptkbp:upperLayerCalled
|
Active layer
|
|
gptkbp:bfsParent
|
gptkb:Static_Shock
|
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gptkbp:bfsLayer
|
5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Permafrost
|