Title: AmeriFlux CA-CF3: Churchill Fen Site 3
Citation: Kyle Arndt, Susan Natali (2026), AmeriFlux BASE CA-CF3 Churchill Fen Site 3, Ver. 3-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/2335573
Study Site: Churchill, Manitoba
Purpose: Wetlands are the largest natural source of methane, a strong greenhouse gas, which is increasing at an accelerated rate in the atmosphere. Fen wetlands in the Arctic-boreal region are an important contributor to natural emissions in the north. In this study, we examined seasonal patterns of methane emissions from a fen in Canada's Hudson Bay lowlands from 2022 to 2023 and compared those emissions to previous data records from 2008 to 2011.
Abstract: This is the AmeriFlux version of the carbon flux data for the site CA-CF3 Churchill Fen Site 3. Fen site dominated by sedges. Flat, high water table. Frozen for long periods each year. Close to Arctic Ocean coast so affected by land/sea breezes and coastal weather.
Supplemental Information Summary: Associated code: marconmontemayor. (2026). marconmontemayor/churchill_analysis: Churchill CH4 Analysis V.1.0 (Version Analysis_v1) [Computer software]. Zenodo. https://doi.org/10.5281/zenodo.19745426
Research:
Further Info: Montemayor, M. N., Arndt, K. A., Murphy, P., Tenuta, M., & Natali, S. M. (2026). Elevated spring methane emissions in a sub-arctic peatland fen. Journal of Geophysical Research: Biogeosciences, 131, e2026JG009699. https://doi.org/10.1029/2026JG009699
Status: Complete
Keywords:
carbon dioxide,
Geographical coordinates: North: 58.67, South: 58.67 East: -93.83 West: -93.83
Bounding Temporal Extent: Start Date: 2022-01-01, End
Date: 2025-12-31
