Spatiotemporal variability and environmental controls on aquatic methane emissions in an Arctic permafrost catchment

Thayne, Michael W.; Kemper, Karl; Wille, Christian; Kalhori, Aram; Sachs, Torsten

doi:10.5194/bg-23-477-2026

Articles | Volume 23, issue 2

https://doi.org/10.5194/bg-23-477-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-23-477-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 2

Research article

|

19 Jan 2026

Research article |

| 19 Jan 2026

Spatiotemporal variability and environmental controls on aquatic methane emissions in an Arctic permafrost catchment

Michael W. Thayne, Karl Kemper, Christian Wille, Aram Kalhori, and Torsten Sachs

Supplement

https://doi.org/10.5194/bg-23-477-2026-supplement

Data sets

GeoBasis Disko - Meteorology - AWS3-Meteorology (Version 1.0) Greenland Ecosystem Monitoring https://doi.org/10.17897/FEGK-0632

GeoBasis Disko - Soil - AWS3-SoilMoisture (Version 1.0) Greenland Ecosystem Monitoring https://doi.org/10.17897/6G78-P793

GeoBasis Disko - Soil - T1-SoilTemperature (Version 1.0) Greenland Ecosystem Monitoring https://doi.org/10.17897/9N7Z-GA63

BAWLD-CH4: Methane Fluxes from Boreal and Arctic Ecosystems McKenzie Kuhn et al. https://doi.org/10.18739/A2DN3ZX1R

Model code and software

mthayne527/fluxCH4: fluxCH4 v1.0.1 (Gas_Flux_Algorithm_v1.0.1) Michael Thayne https://doi.org/10.5281/zenodo.18241611

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Short summary

This study examines methane (CH₄) emissions across an Arctic catchment on Disko Island, Greenland. Using over 700 floating-chamber measurements collected during two summer seasons, we show that methane fluxes vary strongly between lakes, streams, and shorelines and change over time. Early-season emissions are mainly driven by weather and hydrology, while later patterns reflect water chemistry and biological processes.