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|a Large-Scale Controls of Methanogenesis Inferred from Methane and Gravity Spaceborne Data |h [electronic resource]. |
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|a [S.l.] : |b American Association for the Advancement of Science, |c 2010. |
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|a Science Magazine Volume 327. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Wetlands are the largest individual source of methane (CH4), but the magnitude and distribution of
this source are poorly understood on continental scales. We isolated the wetland and rice paddy
contributions to spaceborne CH4 measurements over 2003–2005 using satellite observations of
gravity anomalies, a proxy for water-table depth G, and surface temperature analyses TS. We find
that tropical and higher-latitude CH4 variations are largely described by G and TS variations,
respectively. Our work suggests that tropical wetlands contribute 52 to 58% of global emissions,
with the remainder coming from the extra-tropics, 2% of which is from Arctic latitudes. We
estimate a 7% rise in wetland CH4 emissions over 2003–2007, due to warming of mid-latitude and
Arctic wetland regions, which we find is consistent with recent changes in atmospheric CH4. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Christian Frankenberg. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042655/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/26/55/00001/FI15042655_thm.jpg |
