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Abstract: Numerical Simulation of the Impact of Atmospheric Sink Variability and CH<sub>4 </sub>Biomass Burning Emissions on the Global Mean δ<sup>13</sup>C(CH<sub>4</sub>) Trend. (AGU25)

Numerical Simulation of the Impact of Atmospheric Sink Variability and CH4 Biomass Burning Emissions on the Global Mean δ13C(CH4) Trend.

Anna-Leah Nickl1,2, Patrick Joeckel2, Franziska Winterstein2 and Anja Schmidt1,2, (1)Ludwig-Maximilians-University Munich, Meteorological Institute, München, Germany, (2)German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Wessling, Germany