TY - JOUR A1 - Vogel, A. A1 - Ungermann, J. A1 - Elbern, H. T1 - Analyzing trace gas filaments in the Ex-UTLS by 4D-variational assimilation of airborne tomographic retrievals JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 2017 SP - 1 EP - 16 Y1 - 2017/05/05 PB - Copernicus Publications SN - 1680-7375 UR - https://acp.copernicus.org/preprints/acp-2017-308/ L1 - https://acp.copernicus.org/preprints/acp-2017-308/acp-2017-308.pdf DO - 10.5194/acp-2017-308 ER -