TY - JOUR A1 - Meirink, J. F. A1 - Bergamaschi, P. A1 - Krol, M. C. T1 - Four-dimensional variational data assimilation for inverse modelling of atmospheric methane emissions: method and comparison with synthesis inversion JO - Atmos. Chem. Phys. J1 - ACP VL - 8 IS - 21 SP - 6341 EP - 6353 Y1 - 2008/11/05 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/8/6341/2008/ L1 - http://www.atmos-chem-phys.net/8/6341/2008/acp-8-6341-2008.pdf DO - 10.5194/acp-8-6341-2008 ER -