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Assessing Methane Emissions from Global Space-Borne Observations

Frankenberg, C. and Meirink, J. F. and van Weele, M. and Platt, U. and Wagner, T. (2005) Assessing Methane Emissions from Global Space-Borne Observations. Science, 308 (5724). pp. 1010-1014. ISSN 0036-8075. doi:10.1126/science.1106644.

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In the past two centuries, atmospheric methane has more than doubled and now constitutes 20% of the anthropogenic climate forcing by greenhouse gases. Yet its sources are not well quantified, introducing uncertainties in its global budget. We retrieved the global methane distribution by using spaceborne near-infrared absorption spectroscopy. In addition to the expected latitudinal gradient, we detected large-scale patterns of anthropogenic and natural methane emissions. Furthermore, we observed unexpectedly high methane concentrations over tropical rainforests, revealing that emission inventories considerably underestimated methane sources in these regions during the time period of investigation (August through November 2003).

Item Type:Article
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Frankenberg, C.0000-0002-0546-5857
Additional Information:© 2005 American Association for the Advancement of Science. Received for publication 22 October 2004; accepted for publication 9 March 2005. Most importantly the authors thank all scientists and engineers involved in the ESA’s ENVISAT/SCIAMACHY mission, especially J. P. Burrows and H. Bovensmann from the University of Bremen, as well as the space agencies of Germany [German Aerospace Center (DLR)], Netherlands [Netherlands Agency for Aerospace Programmes (NIVR)], and Belgium [Belgian User Support and Operations Center (BUSOC)]. We also thank R. Washenfelder and G. Toon from Jet Propulsion Laboratory for the updated methane spectral database; S. Sanghavi for proofreading the manuscript; and the Netherlands SCIAMACHY Data Center, in particular A. J. M. Piters and J. van de Vegte from [Royal Netherlands Meteorological Institut (RNMI)], for invaluable assistance in handling the SCIAMACHY data format. We acknowledge the European Commission for supporting the 5th Framework Programme RTD project EVERGREEN (contract number EVG1-CT-2002-00079) and A. P. H. Goede, EVERGREEN project coordinator.
Funding AgencyGrant Number
European CommissionEVG1-CT-2002-00079
Issue or Number:5724
Record Number:CaltechAUTHORS:20150508-162503573
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Official Citation:Frankenberg, C., Meirink, J. F., van Weele, M., Platt, U., & Wagner, T. (2005). Assessing Methane Emissions from Global Space-Borne Observations. Science, 308(5724), 1010-1014. doi: 10.1126/science.1106644
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57394
Deposited By: Jason Perez
Deposited On:11 May 2015 21:34
Last Modified:10 Nov 2021 21:12

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