Strong geologic methane emissions from discontinuous terrestrial permafrost in the Mackenzie Delta, Canada

• Published in: Scientific Reports
• Main Authors: Kohnert, Katrin, Serafimovich, Andrei, Metzger, Stefan, Hartmann, Jörg, Sachs, Torsten
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Nature Publishing Group 2017
• Subjects: Arctic; Canada; Mackenzie Delta; permafrost
• Online Access: https://epic.awi.de/id/eprint/45584/; https://epic.awi.de/id/eprint/45584/1/2017_Kohnert_CH4_Mackenzie.pdf; https://www.nature.com/articles/s41598-017-05783-2; https://hdl.handle.net/10013/epic.51735; https://hdl.handle.net/10013/epic.51735.d001

Arctic permafrost caps vast amounts of old, geologic methane (CH4) in subsurface reservoirs. Thawing permafrost opens pathways for this CH4 to migrate to the surface. However, the occurrence of geologic emissions and their contribution to the CH4 budget in addition to recent, biogenic CH4 is uncerta...