International Permafrost Association
The International Permafrost Association (IPA), founded in 1983, has as its objectives to foster the dissemination of knowledge concerning permafrost and to promote cooperation among persons and national or international organisations engaged in scientific investigation and engineering work related to permafrost and seasonally frozen ground. The IPA became an Affiliated Organisation of the International Union of Geological Sciences in July 1989.
Permafrost or perennially frozen ground is defined as earth material that remains at or below 0°C for at least two consecutive years. As such, upwards of 25% of Planet Earth is underlain to some degree by permafrost and in extreme conditions reaches depths of 1500 meters. Permafrost occurs in the high latitudes and mountains and plateaus of both hemispheres. Its spatial distribution in the Northern Hemisphere is illustrated on this map .
Read more about International Permafrost Association: Objectives, Organization and Structure, Publication and Information, Major Activities, Recent and Future Activities
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