Yedoma – kulstofrig is kompleks – er dateret-Pleistocene permafrost (dannet under sidste istid) der indeholder en betydelig mængde af organisk materiale med is indhold på 50 til 90 volumenprocent.

Yedoma dækker omkring en million kvadratkilometer langs den 7000 km lange kystlinje i den Østsibiriske arktiske sokkel.

Thawing yedoma er en betydelig kilde til atmosfærisk metan og bidrager til tilbagetrækning af Alaskas og Østsibiriens kystlinje.

Image: Yedoma distribution (Creative Commons Attribution 4.0 License).

Polarpedia terms are created by EDU-ARCTIC Consortium, which holds responsibility for quality of translations in following languages: Polish, French, Danish, Norwegian, German, Russian, Italian, unless indicated otherwise. If you see an error - please contact us:
European Union flag This project (EDU-ARCTIC) has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 710240. The content of the website is the sole responsibility of the Consortium and it does not represent the opinion of the European Commission, and the Commission is not responsible for any use that might be made of information contained.
Designed & hosted by American Systems Sp. z o.o.