Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-805-2020
© Author(s) 2020. 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-20-805-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Jan 2020
Research article |
| 23 Jan 2020
| 23 Jan 2020
Investigation of the global methane budget over 1980–2017 using GFDL-AM4.1
Program in Atmospheric and Oceanic Sciences, Princeton University,
Princeton, New Jersey, USA
NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
Vaishali Naik
NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
Larry W. Horowitz
NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
Ed Dlugokencky
NOAA Earth System Research Laboratory, Boulder, Colorado, USA
Kirk Thoning
NOAA Earth System Research Laboratory, Boulder, Colorado, USA
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- Atmospheric methane and nitrous oxide: challenges alongthe path to Net Zero E. Nisbet et al. 10.1098/rsta.2020.0457
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- Impact of interannual and multidecadal trends on methane-climate feedbacks and sensitivity C. Cheng & S. Redfern 10.1038/s41467-022-31345-w
- The role of future anthropogenic methane emissions in air quality and climate Z. Staniaszek et al. 10.1038/s41612-022-00247-5
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- Investigating the global OH radical distribution using steady-state approximations and satellite data M. Pimlott et al. 10.5194/acp-22-10467-2022
- Emissions from the Oil and Gas Sectors, Coal Mining and Ruminant Farming Drive Methane Growth over the Past Three Decades N. CHANDRA et al. 10.2151/jmsj.2021-015
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- Using urban-suburban difference of atmospheric CO2 to evaluate carbon neutrality capacity in Hangzhou, China B. Qi et al. 10.1016/j.jes.2024.10.027
- Trends in atmospheric methane concentrations since 1990 were driven and modified by anthropogenic emissions R. Skeie et al. 10.1038/s43247-023-00969-1
- Investigating large methane enhancements in the U.S. San Juan Basin G. Pétron et al. 10.1525/elementa.038
- Influences of hydroxyl radicals (OH) on top-down estimates of the global and regional methane budgets Y. Zhao et al. 10.5194/acp-20-9525-2020
- Anthropogenic emission is the main contributor to the rise of atmospheric methane during 1993–2017 Z. Zhang et al. 10.1093/nsr/nwab200
- Quantification of Central and Eastern China's atmospheric CH4 enhancement changes and its contributions based on machine learning approach X. Ai et al. 10.1016/j.jes.2023.03.010
- Multipass Raman gas analyzer for monitoring of atmospheric air composition D. Petrov et al. 10.1016/j.optlastec.2022.108155
- Temperature sensitivity of anaerobic methane oxidation versus methanogenesis in paddy soil: Implications for the CH4 balance under global warming L. Fan et al. 10.1111/gcb.15935
- Exploring the drivers of tropospheric hydroxyl radical trends in the Geophysical Fluid Dynamics Laboratory AM4.1 atmospheric chemistry–climate model G. Chua et al. 10.5194/acp-23-4955-2023
- Investigation of the renewed methane growth post-2007 with high-resolution 3-D variational inverse modeling and isotopic constraints J. Thanwerdas et al. 10.5194/acp-24-2129-2024
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- Anthropogenic and natural controls on atmospheric <i>δ</i><sup>13</sup>C-CO<sub>2</sub> variations in the Yangtze River delta: insights from a carbon isotope modeling framework C. Hu et al. 10.5194/acp-21-10015-2021
- Sixteen-year trends in atmospheric trace gases from orbit P. Bernath et al. 10.1016/j.jqsrt.2020.107178
- Improvements of Simulating Urban Atmospheric CO2 Concentration by Coupling with Emission Height and Dynamic Boundary Layer Variations in WRF-STILT Model Y. Peng et al. 10.3390/atmos14020223
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Latest update: 23 Dec 2024
Short summary
In this work, methane representation in AM4.1 is improved by optimizing CH4 emissions to match surface observations. We find increases in CH4 sources balanced by increases in sinks lead to CH4 stabilization during 1999–2006, and anthropogenic sources (e.g., agriculture, energy, and waste) are more likely major contributors to the renewed growth after 2006. Increases in CH4 emissions and decreases in OH levels during 2008–2015 prolong CH4 lifetime and amplify methane response to emission changes.
In this work, methane representation in AM4.1 is improved by optimizing CH4 emissions to match...
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