Supplementary of the work "Zhao and Mao et al 2023: Interannual variability of summertime formaldehyde (HCHO) vertical column density and its main drivers in northern high latitudes"

This is the supplementary of the manuscript "Interannual variability of summertime formaldehyde (HCHO) vertical column density and its main drivers in northern high latitudes" submitted to ACP.Preprint link: https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1431/</p