Articles | Volume 19, issue 21
Atmos. Chem. Phys., 19, 13701–13723, 2019
Atmos. Chem. Phys., 19, 13701–13723, 2019

Research article 13 Nov 2019

Research article | 13 Nov 2019

Inter-model comparison of global hydroxyl radical (OH) distributions and their impact on atmospheric methane over the 2000–2016 period

Yuanhong Zhao et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (06 Aug 2019)  Author's response
ED: Publish as is (13 Sep 2019) by Astrid Kiendler-Scharr
Short summary
The role of hydroxyl radical changes in methane trends is debated, hindering our understanding of the methane cycle. This study quantifies how uncertainties in the hydroxyl radical may influence methane abundance in the atmosphere based on the inter-model comparison of hydroxyl radical fields and model simulations of CH4 abundance with different hydroxyl radical scenarios during 2000–2016. We show that hydroxyl radical changes could contribute up to 54 % of model-simulated methane biases.
Final-revised paper