TY - JOUR A1 - Schreier, S. F. A1 - Richter, A. A1 - Wittrock, F. A1 - Burrows, J. P. T1 - Estimates of free-tropospheric NO2 and HCHO mixing ratios derived from high-altitude mountain MAX-DOAS observations at midlatitudes and in the tropics JO - Atmos. Chem. Phys. J1 - ACP VL - 16 IS - 5 SP - 2803 EP - 2817 Y1 - 2016/03/04 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/16/2803/2016/ L1 - https://acp.copernicus.org/articles/16/2803/2016/acp-16-2803-2016.pdf DO - 10.5194/acp-16-2803-2016 ER -