TY - JOUR A1 - Angelbratt, J. A1 - Mellqvist, J. A1 - Blumenstock, T. A1 - Borsdorff, T. A1 - Brohede, S. A1 - Duchatelet, P. A1 - Forster, F. A1 - Hase, F. A1 - Mahieu, E. A1 - Murtagh, D. A1 - Petersen, A. K. A1 - Schneider, M. A1 - Sussmann, R. A1 - Urban, J. T1 - A new method to detect long term trends of methane (CH4) and nitrous oxide (N2O) total columns measured within the NDACC ground-based high resolution solar FTIR network JO - Atmos. Chem. Phys. J1 - ACP VL - 11 IS - 13 SP - 6167 EP - 6183 Y1 - 2011/07/01 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/11/6167/2011/ L1 - http://www.atmos-chem-phys.net/11/6167/2011/acp-11-6167-2011.pdf DO - 10.5194/acp-11-6167-2011 ER -