Articles | Volume 19, issue 6
https://doi.org/10.5194/acp-19-4041-2019
https://doi.org/10.5194/acp-19-4041-2019
Research article
 | 
01 Apr 2019
Research article |  | 01 Apr 2019

Characterisation of short-term extreme methane fluxes related to non-turbulent mixing above an Arctic permafrost ecosystem

Carsten Schaller, Fanny Kittler, Thomas Foken, and Mathias Göckede

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Short summary
Methane emissions from biogenic sources, e.g. Arctic permafrost ecosystems, are associated with uncertainties due to the high variability of fluxes in both space and time. Besides the traditional eddy covariance method, we evaluated a method based on wavelet analysis, which does not require a stationary time series, to calculate fluxes. The occurrence of extreme methane flux events was strongly correlated with the soil temperature. They were triggered by atmospheric non-turbulent mixing.
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