FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions

Sara H. Knox; Robert B. Jackson; Benjamin Poulter; Gavin McNicol; Etienne Fluet-Chouinard; Zhen Zhang; Gustaf Hugelius; Philippe Bousquet; Josep G. Canadell; Marielle Saunois; Dario Papale; Housen Chu; Trevor F. Keenan; Dennis Baldocchi; Margaret S. Torn; Ivan Mammarella; Carlo Trotta; Mika Aurela; Gil Bohrer; David Campbell; Alessandro Cescatti; Samuel Chamberlain; Jiquan Chen; Weinan Chen; Sigrid Dengel; Ankur R. Desai; Eugenie Euskirchen; Thomas Friborg; Daniele Gasbarra; Ignacio Goded; Mathias Goeckede; Martin Heimann; Manuel Helbig; Takashi Hirano; David Y. Hollinger; Hiroki Iwata; Minseok Kang; Janina Klatt; Ken W. Krauss; Lars Kutzbach; Annalea Lohila; Bhaskar Mitra; Timothy H. Morin; Mats B. Nilsson; Shuli Niu; Asko Noormets; Walter C. Oechel; Matthias Peichl; Olli Peltola; Michele L. Reba; Andrew D. Richardson; Benjamin R. K. Runkle; Youngryel Ryu; Torsten Sachs; Karina V. R. Schaefer; Hans Peter Schmid; Narasinha Shurpali; Oliver Sonnentag; Angela C. Tang; Masahito Ueyama; Rodrigo Vargas; Timo Vesala; Eric J. Ward; Lisamarie Windham-Myers; Georg Wohlfahrt; Donatella Zona; Sveriges lantbruksuniversitet

doi:10.1175/BAMS-D-18-0268.1

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FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions

Journal article

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FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions

Sara H. Knox, Robert B. Jackson, Benjamin Poulter, Gavin McNicol, Etienne Fluet-Chouinard, Zhen Zhang, Gustaf Hugelius, Philippe Bousquet, Josep G. Canadell, Marielle Saunois, …

Bulletin of the American Meteorological Society, Vol.100(12), pp.2607-2632

12/01/2019

DOI: https://doi.org/10.1175/BAMS-D-18-0268.1

Abstract

Meteorology & Atmospheric Sciences

Physical Sciences

Science & Technology

This paper describes the formation of, and initial results for, a new FLUXNET coordination network for ecosystem-scale methane (CH4) measurements at 60 sites globally, organized by the Global Carbon Project in partnership with other initiatives and regional flux tower networks. The objectives of the effort are presented along with an overview of the coverage of eddy covariance (EC) CH4 flux measurements globally, initial results comparing CH4 fluxes across the sites, and future research directions and needs. Annual estimates of net CH4 fluxes across sites ranged from -0.2 +/- 0.02 g C m(-2) yr(-1) for an upland forest site to 114.9 +/- 13.4 g C m(-2) yr(-1) for an estuarine freshwater marsh, with fluxes exceeding 40 g C m(-2) yr(-1) at multiple sites. Average annual soil and air temperatures were found to be the strongest predictor of annual CH4 flux across wetland sites globally. Water table position was positively correlated with annual CH4 emissions, although only for wetland sites that were not consistently inundated throughout the year. The ratio of annual CH4 fluxes to ecosystem respiration increased significantly with mean site temperature. Uncertainties in annual CH4 estimates due to gap-filling and random errors were on average +/- 1.6 g C m(-2) yr(-1) at 95% confidence, with the relative error decreasing exponentially with increasing flux magnitude across sites. Through the analysis and synthesis of a growing EC CH4 flux database, the controls on ecosystem CH4 fluxes can be better understood, used to inform and validate Earth system models, and reconcile differences between land surface model- and atmospheric-based estimates of CH4 emissions.

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Title: FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions
Creators - without role: Sara H. Knox - Stanford University
Robert B. Jackson - Stanford University
Benjamin Poulter - Goddard Space Flight Center
Gavin McNicol - Stanford University
Etienne Fluet-Chouinard - Stanford University
Zhen Zhang - Department of Geographical Sciences [College Park]
Gustaf Hugelius - Stockholm University
Philippe Bousquet - Laboratoire des Sciences du Climat et de l'Environnement
Josep G. Canadell - ACT
Marielle Saunois - Laboratoire des Sciences du Climat et de l'Environnement
Dario Papale - Univ Tuscia, Dipartimento Innovaz Nei Sistemi Biol Agroaliment, Viterbo, Italy
Housen Chu - Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA USA
Trevor F. Keenan - Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA 94720 USA
Dennis Baldocchi - Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
Margaret S. Torn - Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA USA
Ivan Mammarella - University of Helsinki
Carlo Trotta - Univ Tuscia, Dipartimento Innovaz Nei Sistemi Biol Agroaliment, Viterbo, Italy
Mika Aurela - Finnish Meteorol Inst, Helsinki, Finland
Gil Bohrer - The Ohio State University
David Campbell - University of Waikato
Alessandro Cescatti - European Commiss, Joint Res Ctr, Ispra, Italy
Samuel Chamberlain - Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
Jiquan Chen - Michigan State, Dept Geog Environm & Spatial Sci, E Lansing, MI USA
Weinan Chen - Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
Sigrid Dengel - Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA USA
Ankur R. Desai - Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA
Eugenie Euskirchen - University of Alaska Fairbanks
Thomas Friborg - University of Copenhagen
Daniele Gasbarra - Univ Napoli Federico II, Dept Vegetal Biol, Naples, Italy
Ignacio Goded - European Commiss, Joint Res Ctr, Ispra, Italy
Mathias Goeckede - Max
Martin Heimann - Max
Manuel Helbig - McMaster University
Takashi Hirano - Hokkaido University
David Y. Hollinger - Northern (Arctic) Federal University
Hiroki Iwata - Shinshu Univ, Dept Environm Sci, Matsumoto, Nagano, Japan
Minseok Kang - Agro
Janina Klatt - Karlsruhe Institute of Technology
Ken W. Krauss - US Geol Survey, Wetland & Aquat Res Ctr, Lafayette, LA USA
Lars Kutzbach - Univ Hamburg, Ctr Earth Syst Res & Sustainabil, Inst Soil Sci, Hamburg, Germany
Annalea Lohila - Finnish Meteorol Inst, Helsinki, Finland
Bhaskar Mitra - Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX USA
Timothy H. Morin - SUNY Coll Environm Sci & Forestry, Dept Environm Resources Engn, Syracuse, NY 13210 USA
Mats B. Nilsson - Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden
Shuli Niu - Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
Asko Noormets - Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX USA
Walter C. Oechel - San Diego State University
Matthias Peichl - Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden
Olli Peltola - Finnish Meteorol Inst, Helsinki, Finland
Michele L. Reba - ARS, Delta Water Management Res Serv, USDA, Jonesboro, AR USA
Andrew D. Richardson - Supreme Council Of Health
Benjamin R. K. Runkle - Univ Arkansas, Dept Biol & Agr Engn, Fayetteville, AR 72701 USA
Youngryel Ryu - Seoul Natl Univ, Dept Landscape Architecture & Rural Syst Engn, Seoul, South Korea
Torsten Sachs - GFZ German Res Ctr Geosci, Potsdam, Germany
Karina V. R. Schaefer - Rutgers State Univ, Dept Biol Sci, Newark, NJ USA
Hans Peter Schmid - Karlsruhe Institute of Technology
Narasinha Shurpali - University of Eastern Finland
Oliver Sonnentag - Université de Montréal
Angela C. Tang - Sarawak Trop Peat Res Inst, Sarawak, Malaysia
Masahito Ueyama - Osaka Prefecture University
Rodrigo Vargas - University of Delaware
Timo Vesala - University of Helsinki
Eric J. Ward - US Geol Survey, Wetland & Aquat Res Ctr, Lafayette, LA USA
Lisamarie Windham-Myers - Menlo School
Georg Wohlfahrt - Univ Innsbruck, Dept Ecol, Innsbruck, Austria
Donatella Zona - San Diego State University
Sveriges lantbruksuniversitet
Publication Details: Bulletin of the American Meteorological Society, Vol.100(12), pp.2607-2632
Publisher: Amer Meteorological Soc
Number of pages: 26
Grant note: NE/P002552/1 / NERC UK; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) NE/P002552/1; NE/P003028/1 / Natural Environment Research Council; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) NNX15AT74A; NNX16AF94A; NNX17AC61A / NASA ABoVE 1752083 / Div Of Chem, Bioeng, Env, & Transp Sys; Directorate For Engineering; National Science Foundation (NSF); NSF - Directorate for Engineering (ENG) AmeriFlux Management Project GBMF5439 / Gordon and Betty Moore Foundation 1752083; 1204263; 1702797 / NSF; National Science Foundation (NSF) 1003221; NNX17AC61A; 905081; NNX15AT74A; 796799; NNX16AF94A / NASA; National Aeronautics & Space Administration (NASA) NA16SEC4810008 / NOAA EPP; National Oceanic Atmospheric Admin (NOAA) - USA John Wesley Powell Center for Analysis and Synthesis of the U.S. Geological Survey 730944 / European Union - Horizon 2020 Research and Innovation Programme; Horizon 2020 629 727890 / EU Horizon 2020; Horizon 2020 U.S. Department of Energy's Office of Science; United States Department of Energy (DOE)
Identifiers: 99915133004826
Academic Unit: Department of Environmental Resources Engineering
Language: English
Resource Type: Journal article