Evaluation of wetland CH4 in the Joint UK Land Environment Simulator (JULES) land surface model using satellite observations by Parker, RJ, Wilson, C, Comyn-Platt, E, Hayman, G, Marthews, TR, Bloom, AA, Lunt, MF, Gedney, N, Dadson, SJ, McNorton, J, Humpage, N, Boesch, H, Chipperfield, MP, Palmer, PI, Yamazaki, D