The reanalysis data CAMS at different model levels has black carbon mass mixing ratio(given by hydrophilic and hydrophobic), and I want to get the total mass concentration of black carbon (hydrophilic + hydrophobic), here are my calculations:
- convert from kg/kg to kg/m3 for both hydrophilic and hydrophobic: by multiplying the air density at the corresponding level.
- convert from kg/m3 to ug/m3 for both hydrophilic and hydrophobic: by multiplying 10^9.
- compute the total BC mass concentration: add the hydrophilic and hydrophobic together.