Abundant pre-industrial carbon detected in Canadian Arctic headwaters : implications for the permafrost carbon feedback

Dean, J. F.van der Velde, Y.Garnett, M. H.Dinsmore, K. J.Baxter, R.Lessels, J. S.Smith, P.Street, L. E.Subke, J-ATetzlaff, D.Washbourne, I.Wookey, P. A.Billett, M. F.2018-03-162018-03-162018-03Dean, J F, van der Velde, Y, Garnett, M H, Dinsmore, K J, Baxter, R, Lessels, J S, Smith, P, Street, L E, Subke, J-A, Tetzlaff, D, Washbourne, I, Wookey, P A & Billett, M F 2018, 'Abundant pre-industrial carbon detected in Canadian Arctic headwaters : implications for the permafrost carbon feedback', Environmental Research Letters, vol. 13, no. 3, 034024. https://doi.org/10.1088/1748-9326/aaa1fe1748-9326ORCID: /0000-0002-3784-1124/work/162728112http://hdl.handle.net/2164/10187This work was primarily supported by the UK Natural Environment Research Council (NERC), grant numbers NE/K000217/1, NE/K000225/1, NE/K000268/1 and NE/K000284/1. JFD acknowledges partial support by the program of the Netherlands Earth System Science Centre (NESSC), financially supported by the Ministry of Education, Culture and Science (OCW). We would like to thank the Aurora Research Institute in Inuvik, Prof Philip Marsh of Wilfrid Laurier University, Dr Oliver Sonnentag of Université de Montréal, and Dr Mark Cooper of the University of Exeter, for support during the field campaigns, Environment Canada for data access, Dr James Weedon of Vrije Universiteit Amsterdam for support with the statistical analyses, and the staff at the NERC Radiocarbon Facility (NRCF010001) and the SUERC AMS Laboratory for the 14C sample processing. The authors declare no competing financial interests. Requests for additional materials and data should be sent to J F Dean.112416121engSDG 13 - Climate Actioncarbon dioxide CO2dissolved organic carbon DOCmethane CH4Arctic catchmentsinland watersradiocarbon C-14dissolved inorganic carbonorganic-carbonclimate-changeactive layermethanethawradiocarbonlakespeatlandsdioxideQH301 BiologyGE Environmental SciencesNatural Environment Research Council (NERC)NE/K000217/1NE/K000225/1NE/K000268/1NE/K000284/1QH301GEAbundant pre-industrial carbon detected in Canadian Arctic headwaters : implications for the permafrost carbon feedbackJournal item10.1088/1748-9326/aaa1fe133