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. 2017 Apr 10;7:45759. doi: 10.1038/srep45759

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(a) Detrended and smoothened CH₄ surface emissions estimates from TM5-4DVAR for the same regions as in Fig. 1. The variability of GFED4s biomass burning emissions has been subtracted. (b) δ¹³C-CH₄ measurements⁵⁴ corrected for the influence of transport using a meteorology-only TM5 simulation of δ¹³C-CH₄³². The light shaded regions represent the ±1σ uncertainty of the respective time series.