for kappa aerosol mode, you shouldn't need to specify volume and mass fractions separately. better to specify mass fractions and densities (like for B formulation) and then calculate the volume fractions in backend instead of making the user do this.
for kappa aerosol mode, you shouldn't need to specify volume and mass fractions separately. better to specify mass fractions and densities (like for B formulation) and then calculate the volume fractions in backend instead of making the user do this.