How Much of the Earth's Surface is Underlain by Permafrost?

• Published in: Journal of geophysical research. Earth surface Vol. 126; no. 5
• Main Author: Obu, J.
• Format: Journal Article
• Language: English
• Published: 01.05.2021
• Subjects: Northern Hemisphere; permafrost; permafrost area; permafrost region

More than 80% of studies reporting the area on Earth underlain by permafrost refer to the extent of the permafrost region, which accounts for around 21 million km2 (22% of the Northern Hemisphere's exposed land surface). Since each permafrost zone (continuous, discontinuous, sporadic, and isola...