Dear colleagues and esteemed professors,
While searching global permafrost distribution I have come across several terms, which are synonymous and confusing.
It would be awesome to know the differences between; Permafrost Region, Permafrost Zone and Permafrost Area.
While going through the topic myself, I have come across some remarkable commentary (Obu, 2021) and articles (Zhang et al., 1999 and 2000; Gruber, 2012). Still, I would appreciate knowing the difference from the experts themselves.
As currently used, permafrost zone refers to an area underlane by a definite percentage of permafrost, e.g., 20-70%. virtually nowhere is the permafrost existing throughout an area, e. g., beneath lakes and rivers.
A permafrost region is one where patches of permafrost occurs.
A permafrost area is used to indicate an area underlain partly or completely by permafrost without specifying whether it underlies part or all of the area. It is often used where the permafrost is patchy and has not been mapped in detail, nor is the amount of ground ice known.
Stuart.
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