B058
The Global Methane Cycle

Session ID#: 160224

Session Description:
Methane is a potent greenhouse gas with a shorter atmospheric lifetime than CO2 but a stronger warming potential molecule for molecule. Concentrations of CH4 continue to increase at record levels in 2020 and 2021, making it a critical component of pathways to mitigate climate change. This session highlights bottom-up and top-down integration of measurements and model simulations of methane sources and sinks. Examples of relevant topics include inventory, modeling or remote sensing methods to estimate wetland and freshwater emissions, sources from the agriculture and energy sectors, atmospheric (inverse) modeling and use of atmospheric isotopes or co-emitted tracers. The session also invites research on inter-annual and decadal scale trends and variability of methane sources and sinks, and on approaches allowing contributions to the Global Stocktake exercise. The research presented will further help to improve our understanding of the methane cycle and nourish the updates of the Global Methane Budget being developed under the umbrella of the Global Carbon Project budget.
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]

Primary Convener:  Marielle Saunois, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
Conveners:  Benjamin Poulter, NASA GSFC, Biospheric Science, Greenbelt, MD, United States and Robert B Jackson, Stanford University, Department of Earth System Science, Stanford, United States
 
Using Atmospheric Observations to Improve the Representation of Wetland Methane Emissions in the Pantanal (1075283)
Mengze Li1, Eric A Kort1, A. Anthony Bloom2, Dien Wu3, Genevieve Plant1, Cynthia Gerlein-Safdi4 and Tianjiao Pu5, (1)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)University of California Berkeley, Civil and Environmental Engineering, Berkeley, United States, (5)University of California Berkeley, Civil and Environmental Engineering, Berkeley, CA, United States
 
Estimating Global Pattern of Soil Methane Uptake Using a Geostatistical Model Related to Soil Properties (1077065)
Jiawei Jiang and Zhifeng Yan, Tianjin University, Tianjin, China
 
Soil organic carbon is a key determinant of CH4 sink in global forest soils (1082849)
Jaehyun Lee1, Youmi Oh2, Sangtae Lee3, Jeongeun Yun1, Yerang Yang4, Jinhyun Kim5, Qianlai Zhuang6 and Hojeong Kang4, (1)Yonsei University, School of Civil and Environmental Engineering, Seoul, Korea, Republic of (South), (2)University of Colorado Boulder, Princeton, United States, (3)Lab of Silvicultural Practices and Management, National Institute of Forest Science, Seoul, South Korea, (4)Yonsei University, School of Civil and Environmental Engineering, Seoul, South Korea, (5)Yonsei University, College of Engineering, Seoul, South Korea, (6)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
 
Do atmospheric observations of stable isotopes of methane help us to address the important unknowns about the global methane budget? (1090858)
Lori Bruhwiler, NOAA Boulder, Boulder, CO, United States and Youmi Oh, University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States
 
North American Methane enhancements as seen by TROPOMI; Model-data comparison and validation with TCCON observations (1092039)
Nalini Krishnankutty1, Sean Crowell2, Xiaoming Hu3 and Peter Somkuti1, (1)University of Oklahoma Norman Campus, Department of Meteorology, Norman, United States, (2)University of Oklahoma, Norman, OK, United States, (3)the University of Oklahoma, Norman, United States
 
Constraining Methane Flux over the Indian Peninsula using Bayesian Inverse Modelling and In-situ Measurements (1101889)
Anjumol Raju, Space Physics Laboratory, Vikram Sarabhai Space Centre, ISRO, Trivandrum, India; University of Kerala, Thiruvananthapuram, India, S Sijikumar, Space Physics Laboratory, Vikram Sarabhai Space Center, ISRO, Trivandrum, India, Vinu Valsala, Indian Institute of Tropical Meteorology, Pune, India, Yogesh Kumar Tiwari, Indian Institute of Tropical Meteorology, Pune, India, Pune, Maharashtra, India, Santanu Halder, Research Fellow, CCCR, Pune, India, Girach Imran Asatar, ISRO, SpacePhysics Laboratory, Thiruvananthapuram, India, Jain Chaithanya D Jain, NARL, Tirupati, India and M Venkat Ratnam, National Atmospheric Reserach Laboratory, Tirupati, India
 
Quantification of the COVID-19 impact on US methane emissions (1117187)
Sergio Ibarra Espinosa1, Lei Hu1, Edward J Dlugokencky1, Kathryn McKain1, Scot M Miller2, Colm Sweeney1 and Arlyn Andrews1, (1)NOAA, Global Monitoring Laboratory, Boulder, United States, (2)Johns Hopkins University, Department of Environmental Health and Engineering, Baltimore, United States
 
Satellite quantification of methane emissions from the Middle East and North Africa to support effective climate change policy (1119877)
Zichong Chen, Harvard University, Cambridge, MA, United States, Daniel J. Jacob, Harvard University, Cambridge, United States, Ritesh Gautam, Environmental Defense Fund DC, Washington, United States and Mark Omara, Environmental Defense Fund New York, Austin, United States
 
Resolving Site-Specific Landfill CH4 Emissions (1123397)
Jean E Bogner, University of Illinois at Chicago, Earth and Environmental Sciences, Chicago, IL, United States, Gwenael Le Fournis, Veolia Environnement, Aubervilliers, France, Jessica North, LGI, Eagle Farm, Queensland, Australia and Kurt Spokas, USDA-ARS, St. Paul, MN, United States
 
Methane Plume Mapping Over Shallow Water Offshore Oil and Natural Gas Platforms in the Gulf of Mexico (Invited) (1128748)
Alana Ayasse1, Andrew K Thorpe2, Daniel Cusworth1, Eric A Kort3, Alan M Gorchov Negron4, Joseph Heckler5, Greg Asner6 and Riley Duren1, (1)University of Arizona, Tucson, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States, (4)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (5)Arizona State University, Center for Global Discovery and Conservation Science, Tempe, AZ, United States, (6)Arizona State University, Center for Global Discovery and Conservation Science, Tempe, United States
 
Regional Methane Emission Estimates for Melbourne, Australia, using Inversion and in situ Measurements (1129949)
Nasimeh Shahrokhi1, Cathy M Trudinger2, Peter J Rayner3, Zoe M Loh1 and Steven P. Thomas4, (1)CSIRO, Oceans and Atmosphere, Aspendale, Australia, (2)CSIRO, Oceans and Atmosphere, Aspendale, VIC, Australia, (3)The University of Melbourne, Melbourne, Australia, (4)University of Melbourne, Melbourne, VIC, Australia
 
Quantifying natural geologic methane emissions from microseepage in the Raton Basin, Colorado and New Mexico, United States (1130181)
Mingzhe Zhu1, Margaret Scholer2, Katey M Walter Anthony3, Alexander Charles Ihle4, Wuming Zheng1, Kathleen Hall5, Marc L Buursink6, Thomas S Weber7 and Vasilii V Petrenko7, (1)University of Rochester, Earth and Environmental Science, Rochester, United States, (2)University of Rochester, Department of Earth and Environmental Sciences, Rochester, United States, (3)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (4)Whitman College, Walla Walla, WA, United States, (5)University of Rochester, Rochester, NY, United States, (6)U.S. Geological Survey, Geology, Energy, and Minerals (GEM) Science Center, Reston, VA, United States, (7)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States
 
Improving the Characterization of Geologic Methane Emissions Across the United States: Preliminary Results from New Microseepage Measurements in the San Juan Basin (1130203)
Margaret Scholer1, Mingzhe Zhu2, Kathleen Hall3, Marc L Buursink4, Katey M Walter Anthony5, Thomas S Weber6 and Vasilii V Petrenko6, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, United States, (2)University of Rochester, Earth and Environmental Science, Rochester, United States, (3)University of Rochester, Rochester, NY, United States, (4)U.S. Geological Survey, Geology, Energy, and Minerals (GEM) Science Center, Reston, VA, United States, (5)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (6)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States
 
New Measurements from Appalachian and Michigan Sedimentary Basins Imply that Geologic Methane Emissions Are Less Widespread than Previously Assumed. (1130496)
Kathleen Hall1, Marika P Stock2, Marc L Buursink3, Haoran Piao4, Mingzhe Zhu5, Lucy Kunhardt4, Margaret Scholer2, Thomas S Weber6, Katey M Walter Anthony7 and Vasilii V Petrenko6, (1)University of Rochester, Rochester, NY, United States, (2)University of Rochester, Department of Earth and Environmental Sciences, Rochester, United States, (3)U.S. Geological Survey, Geology, Energy, and Minerals (GEM) Science Center, Reston, VA, United States, (4)University of Rochester, Earth and Environmental Sciences, Rochester, United States, (5)University of Rochester, Earth and Environmental Science, Rochester, United States, (6)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (7)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
 
Quantifying Natural Geologic Methane Emissions from Microseepage in the Denver-Julesburg Basin, Colorado, United States (1130676)
Haoran Piao1, Kathleen Hall2, Marc L Buursink3, Thomas S Weber4, Margaret Scholer5, Mingzhe Zhu6, Katey M Walter Anthony7 and Vasilii V Petrenko4, (1)University of Rochester, Earth and Environmental Sciences, Rochester, United States, (2)University of Rochester, Rochester, NY, United States, (3)U.S. Geological Survey, Geology, Energy, and Minerals (GEM) Science Center, Reston, VA, United States, (4)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (5)University of Rochester, Department of Earth and Environmental Sciences, Rochester, United States, (6)University of Rochester, Earth and Environmental Science, Rochester, United States, (7)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
 
Quantifying methane emissions from global land and freshwater ecosystems with process-based biogeochemistry models (1135482)
Qianlai Zhuang, Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
 
Methane Emission from Peat Paddy Field Applied with Different Irrigation and Fertilizer Application (1143676)
Tumiar Katarina Manik, Lampung University, Agronomy, Kota Bandar Lampung, Indonesia, Paul Benyamin Timotiwu, Lampung University, Indonesia, Agrotechnology, Kota Bandar Lampung, Indonesia and Didik Purwanto, Lampung University, Indonesia, Agronomy, Kota Bandar Lampung, Indonesia
 
Methane-climate feedbacks and sensitivity: implications of interannual and multidecadal trends (1150800)
Simon A T Redfern and Chin-Hsien Cheng, Nanyang Technological University, Asian School of the Environment, Singapore, Singapore
 
CarbonTracker-CH4 (v2022): An atmospheric assimilation system for estimating methane emissions consistent with atmospheric measurements of methane and its stable carbon isotopes (Invited) (1151831)
Youmi Oh1,2, Lori Bruhwiler2, Sourish Basu3,4, Xin Lan1,2, Sylvia Englund Michel5 and Edward J Dlugokencky2, (1)University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (2)NOAA, Global Monitoring Laboratory, Boulder, United States, (3)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, United States, (4)University of Maryland College Park, College Park, United States, (5)University of Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States
 
Global Methane Budget 2000-2020: Wetland model synthesis (1179170)
Zhen Zhang1, Benjamin Poulter2, Joe R Melton3, William J Riley4, David John Beerling5, Philippe Ciais6, Nicola Gedney7, Adrian Gustafson8, Peter O Hopcroft9, Akihiko Ito10, Atul K Jain11, Fortunat Joos12, Thomas Kleinen13, Tingting Li14, Paul A Miller8, Xiangyu Liu15, Jurek Müller16, Changhui Peng17, Shushi Peng18, Zhangcai Qin19, Hanqin Tian20, Xiaoming Xu21, Yuanzhi Yao22, Yi Xi23, Qing Zhu24, Wenxin Zhang8, Qiuan Zhu25 and Qianlai Zhuang26, (1)University of Maryland College Park, College Park, MD, United States, (2)NASA GSFC, Biospheric Science, Greenbelt, MD, United States, (3)Environment and Climate Change Canada, Climate Research Division, Victoria, BC, Canada, (4)Lawrence Berkeley National Laboratory, Climate & Ecosystem Sciences Division, Berkeley, United States, (5)University of Sheffield, Leverhulme Centre for Climate Change Mitigation; Department of Animal and Plant Sciences, Sheffield, S10, United Kingdom, (6)Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (7)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (8)Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden, (9)University of Bristol, Bristol, United Kingdom, (10)National Institute for Environmental Studies, Tsukuba, Japan, (11)University of Illinois at Urbana Champaign, Urbana, IL, United States, (12)Univ Bern, Climate and Environmental Physics, Bern, Switzerland, (13)Max Planck Institute for Meteorology, Hamburg, Germany, (14)Institute of Atmospheric Physics, Chinese Academy of Science, Beijing, China, (15)Purdue University, West Lafayette, IN, United States, (16)University of Bern, Climate and Environmental Physics, Physics Institute, Bern, Switzerland, (17)University of Quebec at Montreal, Institute of Environment Sciences, Montreal, QC, Canada, (18)Peking University, College of Urban and Environmental Sciences, Beijing, China, (19)Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China, (20)Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Chestnut Hill, United States, (21)University of Illinois, Atmospheric Sciences, Urbana, IL, United States, (22)Auburn Univercity, International Center for Climate and Global Change Research and School of Forestry and Wildlife Sciences, Auburn, AL, United States, (23)Peking University, Beijing, China, (24)Purdue University, West Lafayette, United States, (25)Hohai University, Nanjing, China, (26)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
 
Global estimation of methane emissions from termites (1192708)
Akihiko Ito, National Institute for Environmental Studies, Tsukuba, Japan
 
Quantifying Methane Emissions from both Land and Aquatic Ecosystems in the pan-Arctic Area (1194668)
Xiangyu Liu, Purdue University, West Lafayette, IN, United States and Qianlai Zhuang, Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
See more of: Biogeosciences
<< Previous Session Proposal | Next Session Proposal >>