Figure 9

Regional maps of MERRA-2 (AOT 550 nm) as recurring averages between 2012 and 2022 of: (a) Black carbon, March months (b) Organic carbon, March months, (c) Black carbon, September months, (d) Organic carbon, September months. (e) Time-average regional map of MERRA-2 PW between 2012 and 2022. Maps were generated online from the Giovanni NASA website (https://giovanni.gsfc.nasa.gov/giovanni/).