Articles | Volume 19, issue 7
Atmos. Chem. Phys., 19, 4637–4658, 2019
https://doi.org/10.5194/acp-19-4637-2019
Atmos. Chem. Phys., 19, 4637–4658, 2019
https://doi.org/10.5194/acp-19-4637-2019

Research article 08 Apr 2019

Research article | 08 Apr 2019

Analysis of atmospheric CH4 in Canadian Arctic and estimation of the regional CH4 fluxes

Misa Ishizawa et al.

Data sets

World Meteorological Organization (WMO)/Global Atmospheric Watch (GAW) programme/Japan Meteorological Agency (JMA) WDCGG http://ds.data.jma.go.jp/gmd/wdcgg/

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Short summary
The Canadian Arctic has the potential for enhanced methane (CH4) emissions under global warming. However, the regional CH4 emission (fluxes) estimates range widely. This study analyzes recent Canadian Arctic CH4 observations and estimates the regional emissions. The additional observations yield robust CH4 flux estimates and enable the partitioning of the CH4 sources into wetland and forest fires. The results indicate that years with warmer summer conditions result in more wetland CH4 emissions.
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