Fig. 4

Climatological monthly mean distribution of the OMI formaldehyde (HCHO) tropospheric column (×1015 molecule cm−2) at 30–60° S. The color in each pixel reveals the median HCHO value for all available measurements from 2005 to 2016
Climatological monthly mean distribution of the OMI formaldehyde (HCHO) tropospheric column (×1015 molecule cm−2) at 30–60° S. The color in each pixel reveals the median HCHO value for all available measurements from 2005 to 2016