Kangasaho, V. (author), Tsuruta, A. (author), Backman, L. (author), Makinen, P. (author), Houweling, S. (author), Segers, A. (author), Krol, M. (author), Dlugokencky, E.J. (author), Michel, S. (author), White, J.W.C. (author), Aalto, T. (author) This study investigates the contribution of different CH4 sources to the seasonal cycle of δ13C during 2000–2012 by using the TM5 atmospheric transport model, including spatially varying information on isotopic signatures. The TM5 model is able to produce the background seasonality of δ13C, but the discrepancies compared to the observations...
article 2022