– The Permafrost Carbon Network is a CliC sponsored activity

1A few news items from the Permafrost Carbon Network….

-The 4th Annual PCN Meeting prior to AGU 2014 in San Francisco was another successful and highly attended meeting. Working group leads and co-leads updated the attendance on their various activities before the four breakout sessions focused on a) Modeling, Benchmarking and possible CMIP6 activities; b) Arctic coastal processes and Yedoma region carbon pools; c) Thermokarst upscaling and d) Aerobic and Anaerobic upscaling using a Panarctic thermal scaling approach.

-The Permafrost Carbon Network is now hosted at Northern Arizona University and so Ted Schuur’s and Christina Schaedel’s email addresses changed to Ted.Schuur@nau.edu and Christina.Schaedel@nau.edu.

-Special Issue in Biogeosciences on ‘Freshwater ecosystems in changing permafrost landscapes’. Guest editors are: I. Laurion, J. E. Vonk, W. F. Vincent, and V. Brovkin. The timeline for submission is 15 April 2014- 20 June 2015. More details can be found here: http://www.biogeosciences.net/submission/scheduled_special_issues.html#45


-Multiple new publications (this list is not complete)

Abbott BW, Larouche JR, Jones JB, Bowden WB, Balser AW (2014) Elevated dissolved organic carbon biodegradability from thawing and collapsing permafrost. Journal of Geophysical Research: Biogeosciences, 119, 2014JG002678.

Chang RY-W, Miller CE, Dinardo SJ et al. (2014) Methane emissions from Alaska in 2012 from CARVE airborne observations. Proceedings of the National Academy of Sciences. 16694–16699

Christiansen J, Romero A, Jørgensen NG, Glaring M, Jørgensen C, Berg L, Elberling B (2014) Methane fluxes and the functional groups of methanotrophs and methanogens in a young Arctic landscape on Disko Island, West Greenland. Biogeochemistry, 1-19

Hugelius G, Strauss J, Zubrzycki S et al. (2014) Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps. Biogeosciences, 11, 6573-6593.

Juncher Jørgensen C, Lund Johansen KM, Westergaard-Nielsen A, Elberling B (2015) Net regional methane sink in High Arctic soils of northeast Greenland. Nature Geosci, 8, 20-23.

McCalley CK, Woodcroft BJ, Hodgkins SB et al. (2014) Methane dynamics regulated by microbial community response to permafrost thaw. Nature, 514, 478-481.

O’Donnell JA, Aiken GR, Walvoord MA, Raymond PA, Butler KD, Dornblaser MM, Heckman K (2014) Using dissolved organic matter age and composition to detect permafrost thaw in boreal watersheds of interior Alaska. Journal of Geophysical Research: Biogeosciences, 2014JG002695.

Schaefer K, Lantuit H, Romanovsky VE, Schuur EAG, Witt R (2014) The impact of the permafrost carbon feedback on global climate. Environmental Research Letters, 9, 085003.

Wik M, Thornton BF, Bastviken D, MacIntyre S, Varner RK, Crill PM (2014) Energy input is primary controller of methane bubbling in subarctic lakes. Geophysical Research Letters, 41, 2013GL058510.