Current rates and mechanisms of subsea permafrost degradation in the East Siberian Arctic Shelf

The rate of subsea permafrost degradation is a key factor controlling marine methane emissions in the Arctic. Here, using re-drilled boreholes, the authors show that the ice-bonded permafrost table in the near-shore East Siberian Arctic Shelf has deepened by ∼14 cm per year over the past 31–32 years...

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Bibliographic Details
Published in:Nature Communications
Main Authors: Natalia Shakhova, Igor Semiletov, Orjan Gustafsson, Valentin Sergienko, Leopold Lobkovsky, Oleg Dudarev, Vladimir Tumskoy, Michael Grigoriev, Alexey Mazurov, Anatoly Salyuk, Roman Ananiev, Andrey Koshurnikov, Denis Kosmach, Alexander Charkin, Nicolay Dmitrevsky, Victor Karnaukh, Alexey Gunar, Alexander Meluzov, Denis Chernykh
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2017
Subjects:
Science
Q
Arctic
Ice
permafrost
Online Access:https://doi.org/10.1038/ncomms15872
https://doaj.org/article/b5ceac8827a5459c95a919791fe85ff5
Description
Summary:The rate of subsea permafrost degradation is a key factor controlling marine methane emissions in the Arctic. Here, using re-drilled boreholes, the authors show that the ice-bonded permafrost table in the near-shore East Siberian Arctic Shelf has deepened by ∼14 cm per year over the past 31–32 years.

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