Disproportional contribution of geological sources to Mackenzie Delta methane emissions revealed from airborne eddy-covariance measurements

• Main Authors: Kohnert, K., Serafimovich, A., Metzger, S., Hartmann, J., Sachs, T.
• Format: Conference Object
• Language: English
• Published: 2016
• Subjects: Arctic; Yukon; Mackenzie River; Canada; Mackenzie Delta; Mackenzie river; permafrost; Richards Island
• Online Access: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1854888

Arctic wetlands associated with permafrost as well as thawing permafrost emit the greenhouse gas methane (CH4). Two important contributors are recent microbial activity in the active layer or taliks (biogenic CH4), and deeper fossil sources where pathways through the permafrost exist (geologic CH4)....