Articles | Volume 23, issue 1
https://doi.org/10.5194/acp-23-789-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-789-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Jan 2023
Research article |
| 17 Jan 2023
| 17 Jan 2023
Reconciling the bottom-up and top-down estimates of the methane chemical sink using multiple observations
Yuanhong Zhao
CORRESPONDING AUTHOR
Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, China
Laboratoire des Sciences du Climat et de l'Environnement, LSCE-IPSL
(CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Marielle Saunois
Laboratoire des Sciences du Climat et de l'Environnement, LSCE-IPSL
(CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Philippe Bousquet
Laboratoire des Sciences du Climat et de l'Environnement, LSCE-IPSL
(CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Xin Lin
Laboratoire des Sciences du Climat et de l'Environnement, LSCE-IPSL
(CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Michaela I. Hegglin
Institute of Energy and Climate Research – Stratosphere (IEK-7),
Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
Department of Meteorology, University of Reading, Earley Gate,
Reading, RG6 6BB, United Kingdom
Josep G. Canadell
Global Carbon Project, CSIRO Oceans and Atmosphere, Canberra, Australian Capital Territory 2601, Australia
Robert B. Jackson
Department of Earth System Science, Woods Institute for the Environment, and Precourt Institute for Energy, Stanford University, Stanford, CA 94305, USA
Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
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Cited
19 citations as recorded by crossref.
- Tracking regional CH4 emissions through collocated air pollution measurement: a pilot application and robustness analysis in China Y. Li & B. Zheng
- Air pollution modulates trends and variability of the global methane budget Y. Zhao et al.
- Representing improved tropospheric ozone distribution over the Northern Hemisphere by including lightning NOx emissions in CHIMERE S. Ghosh et al.
- Global Methane Budget 2000–2020 M. Saunois et al.
- Development of the global chemistry-climate coupled model BCC-GEOS-Chem v2.0: improved atmospheric chemistry performance and new capability of chemistry-climate interactions R. Sun et al.
- Where to place methane monitoring sites in China to better assist carbon management X. Zhang et al.
- Estimating Methane Emissions by Integrating Satellite Regional Emissions Mapping and Point-Source Observations: Case Study in the Permian Basin M. Gao & Z. Xing
- Opinion: Beyond global means – novel space-based approaches to indirectly constrain the concentrations of and trends and variations in the tropospheric hydroxyl radical (OH) B. Duncan et al.
- Bottom‐Up Evaluation of the Methane Budget in Asia and Its Subregions A. Ito et al.
- Uncertainties in fertilizer-induced emissions of soil nitrogen oxide and the associated impacts on ground-level ozone and methane C. Gong et al.
- Why methane surged in the atmosphere during the early 2020s P. Ciais et al.
- Biochar: A Sustainable Solution for Mitigating Greenhouse Gas Emissions and Enhancing Soil Productivity—A Review A. Adekiya et al.
- Global Scale Inversions from MOPITT CO and MODIS AOD B. Gaubert et al.
- Revealing underestimated ship contributions to atmospheric nitrate over the Pearl River Delta: Based on dual isotopes T. Chen et al.
- Investigation of the renewed methane growth post-2007 with high-resolution 3-D variational inverse modeling and isotopic constraints J. Thanwerdas et al.
- The impact of internal climate variability on OH trends between 2005 and 2014 Q. Zhu et al.
- Anthropogenic-driven perturbations on nitrogen cycles and interactions with climate changes C. Gong et al.
- A nitrate photolysis source of tropospheric HONO is incompatible with current understanding of atmospheric chemistry M. Rowlinson et al.
- Converging evidence for reduced global atmospheric oxidation in 2020 W. Chen et al.
19 citations as recorded by crossref.
- Tracking regional CH4 emissions through collocated air pollution measurement: a pilot application and robustness analysis in China Y. Li & B. Zheng
- Air pollution modulates trends and variability of the global methane budget Y. Zhao et al.
- Representing improved tropospheric ozone distribution over the Northern Hemisphere by including lightning NOx emissions in CHIMERE S. Ghosh et al.
- Global Methane Budget 2000–2020 M. Saunois et al.
- Development of the global chemistry-climate coupled model BCC-GEOS-Chem v2.0: improved atmospheric chemistry performance and new capability of chemistry-climate interactions R. Sun et al.
- Where to place methane monitoring sites in China to better assist carbon management X. Zhang et al.
- Estimating Methane Emissions by Integrating Satellite Regional Emissions Mapping and Point-Source Observations: Case Study in the Permian Basin M. Gao & Z. Xing
- Opinion: Beyond global means – novel space-based approaches to indirectly constrain the concentrations of and trends and variations in the tropospheric hydroxyl radical (OH) B. Duncan et al.
- Bottom‐Up Evaluation of the Methane Budget in Asia and Its Subregions A. Ito et al.
- Uncertainties in fertilizer-induced emissions of soil nitrogen oxide and the associated impacts on ground-level ozone and methane C. Gong et al.
- Why methane surged in the atmosphere during the early 2020s P. Ciais et al.
- Biochar: A Sustainable Solution for Mitigating Greenhouse Gas Emissions and Enhancing Soil Productivity—A Review A. Adekiya et al.
- Global Scale Inversions from MOPITT CO and MODIS AOD B. Gaubert et al.
- Revealing underestimated ship contributions to atmospheric nitrate over the Pearl River Delta: Based on dual isotopes T. Chen et al.
- Investigation of the renewed methane growth post-2007 with high-resolution 3-D variational inverse modeling and isotopic constraints J. Thanwerdas et al.
- The impact of internal climate variability on OH trends between 2005 and 2014 Q. Zhu et al.
- Anthropogenic-driven perturbations on nitrogen cycles and interactions with climate changes C. Gong et al.
- A nitrate photolysis source of tropospheric HONO is incompatible with current understanding of atmospheric chemistry M. Rowlinson et al.
- Converging evidence for reduced global atmospheric oxidation in 2020 W. Chen et al.
Saved (final revised paper)
Latest update: 08 May 2026
Short summary
The large uncertainties in OH simulated by atmospheric chemistry models hinder accurate estimates of CH4 chemical loss through the bottom-up method. This study presents a new approach based on OH precursor observations and a chemical box model to improve the tropospheric OH distributions simulated by atmospheric chemistry models. Through this approach, both the global OH burden and the corresponding methane chemical loss reach consistency with the top-down method based on MCF inversions.
The large uncertainties in OH simulated by atmospheric chemistry models hinder accurate...
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