gchange  > 气候减缓与适应
DOI: 10.1038/ngeo1955
Title:
Three decades of global methane sources and sinks
Author: Kirschke S.; Bousquet P.; Ciais P.; Saunois M.; Canadell J.G.; Dlugokencky E.J.; Bergamaschi P.; Bergmann D.; Blake D.R.; Bruhwiler L.; Cameron-Smith P.; Castaldi S.; Chevallier F.; Feng L.; Fraser A.; Heimann M.; Hodson E.L.; Houweling S.; Josse B.; Fraser P.J.; Krummel P.B.; Lamarque J.-F.; Langenfelds R.L.; Le Quéré C.; Naik V.; O'doherty S.; Palmer P.I.; Pison I.; Plummer D.; Poulter B.; Prinn R.G.; Rigby M.; Ringeval B.; Santini M.; Schmidt M.; Shindell D.T.; Simpson I.J.; Spahni R.; Steele L.P.; Strode S.A.; Sudo K.; Szopa S.; Van Der Werf G.R.; Voulgarakis A.; Van Weele M.; Weiss R.F.; Williams J.E.; Zeng G.
Source Publication: Nature Geoscience
ISSN: 17520894
Indexed By: SCI ; SCI-E
Publishing Year: 2013
Volume: 6, Issue:10
pages begin: 813
pages end: 823
Language: 英语
Scopus Keyword: atmospheric gas ; biogenic emission ; carbon budget ; ecosystem modeling ; emission inventory ; fossil fuel ; greenhouse gas ; hydroxyl radical ; methane ; microbial activity ; source-sink dynamics ; troposphere ; warming ; wetland
English Abstract: Methane is an important greenhouse gas, responsible for about 20% of the warming induced by long-lived greenhouse gases since pre-industrial times. By reacting with hydroxyl radicals, methane reduces the oxidizing capacity of the atmosphere and generates ozone in the troposphere. Although most sources and sinks of methane have been identified, their relative contributions to atmospheric methane levels are highly uncertain. As such, the factors responsible for the observed stabilization of atmospheric methane levels in the early 2000s, and the renewed rise after 2006, remain unclear. Here, we construct decadal budgets for methane sources and sinks between 1980 and 2010, using a combination of atmospheric measurements and results from chemical transport models, ecosystem models, climate chemistry models and inventories of anthropogenic emissions. The resultant budgets suggest that data-driven approaches and ecosystem models overestimate total natural emissions. We build three contrasting emission scenarios-which differ in fossil fuel and microbial emissions-to explain the decadal variability in atmospheric methane levels detected, here and in previous studies, since 1985. Although uncertainties in emission trends do not allow definitive conclusions to be drawn, we show that the observed stabilization of methane levels between 1999 and 2006 can potentially be explained by decreasing-to-stable fossil fuel emissions, combined with stable-to-increasing microbial emissions. We show that a rise in natural wetland emissions and fossil fuel emissions probably accounts for the renewed increase in global methane levels after 2006, although the relative contribution of these two sources remains uncertain. © 2013 Macmillan Publishers Limited.
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被引频次[WOS]:712   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/handle/2HF3EXSE/106689
Appears in Collections:气候减缓与适应
科学计划与规划

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Affiliation: LSCE-CEA-UVSQ-CNRS, Orme des Merisiers, 91190 Gif-sur-Yvette, France; Global Carbon Project, CSIRO Marine and Atmospheric Research, GPO Box 3023, Canberra, ACT 2601, Australia; NOAA ESRL, 325 Broadway, Boulder, CO 80305, United States; Institute for Environment and Sustainability, Joint Research Centre, TP290, I-21027 Ispra (Va), Italy; Lawrence Livermore National Laboratory, PO Box 808, Livermore, CA 94551-0808, United States; University of California Irvine, 570 Rowland Hall, Irvine, CA 92697, United States; Department of Environmental Sciences, Second University of Naples, via Vivaldi 43, 81100 Caserta, Italy; Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, 73100 Lecce, Italy; School of Geosciences, University of Edinburgh, Crew Building, West Mains Road, Edinburgh, EH9 3JN, United Kingdom; Max Planck Institute for Biogeochemistry, PF 100164, D-07701 Jena, Germany; Swiss Federal Research Institute WSL, Zuercherstrasse 111, 8903 Mensdorf, Switzerland; SRON, Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, Netherlands; Institue for Marine and Atmospheric Research Utrecht, Sorbonnelaan 2, 3584 CA Utrecht, Netherlands; Météo France, CNRM/GMGEC/CARMA, 42 av G. Coriolis, 31057 Toulouse, France; Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, Aspendale, VIC 3195, Australia; NCAR, PO Box 3000, Boulder, CO 80307-3000, United States; Tyndall Centre for Climate Change Research, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, United Kingdom; UCAR/NOAA Geophysical Fluid Dynamics Laboratory, 201 Forrestal Road, Princeton, NJ 08540, United States; University of Bristol, Office Old Park Hill, Cantock's Close, Clifton, Bristol BS8 1TS, United Kingdom; Canadian Centre for Climate Modelling and Analysis, Environment Canada, 550 Sherbrooke Street West, West Tower, Montréal, QC, H3A 1B9, Canada; Massachusetts Institute of Technology, Building 54-1312, Cambridge, MA 02139-2307, United States; School of Chemistry, University of Bristol, Cantocks Close, Bristol BS8 1TS, United Kingdom; IMAU, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands; Department of Systems Ecology, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands; NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025, United States; University of Bern, Physics Institute, Climate and Environmental Physics, Sidlerstrasse 5, CH-3012 Bern, Switzerland; NASA Goddard Space Flight Centre, Greenbelt, MD 20771, United States; Universities Space Research Association, NASA Goddard Space Flight Centre, Greenbelt, MD 20771, United States; Graduate School of Environmental Studies, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; VU University, Faculty of Earth and Life Sciences, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands; Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom; Royal Netherlands Meteorological Institute (KNMI), PO Box 201, 3730 AE De Bilt, Netherlands; Scripps Institution of Oceanography, UCSD, San Diego, CA 92093-0244, United States; National Institute of Water and Atmospheric Research, Private Bag 50061, Omakau, New Zealand

Recommended Citation:
Kirschke S.,Bousquet P.,Ciais P.,et al. Three decades of global methane sources and sinks[J]. Nature Geoscience,2013-01-01,6(10)
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