De Smedt, Isabelle, Huan YU, Andreas Richter, Steffen Beirle, Henk Eskes, K. Folkert Boersma, Michel Van Roozendael, et al. “QA4ECV HCHO Tropospheric Column L2 Data from OMI.” Royal Belgian Institute for Space Aeronomy, 2017. https://doi.org/10.18758/71021031.