ground that remains frozen longer than two consecutive years; ground that doesn't thaw in the summer
an organic-rich Pleistocene-age permafrost with high ice content
in areas with permafrost, the top portion of the soil that thaws and refreezes each year
polygon-like pattern on the landscape associated with permafrost caused by repeated cycles of melting, freezing, and cracking
landscape formations associated with permafrost thaw
an earth-covered mound of ice, which creates topography and provides habitat for arctic foxes
a term that refers to the sagging or degradation of the landscape caused by permafrost thaw
the study of the location, movement, and quality of water on earth; heavily influenced by permafrost in Arctic systems
the transport of soil and rock from the earth's surface by wind or water; a significant effect of permafrost thaw
Monitoring Arctic Permafrost
Permafrost underlies most of the Arctic Network and affects nearly everything, from soils and vegetation to water and wildlife.
Monitoring Central Alaska Permafrost
The Central Alaska Network monitors permafrost to track changes over time, focusing on the thermal and physical state of permafrost.
Last updated: July 16, 2019