species_scaveng_coeff_liquid_precip
a vector list of scavenging coefficients from liquid precipitation (in 1/s units) each of the species provided in the 'species_names' object.
species_scaveng_coeff_frozen_precip
a vector list of scavenging coefficients from frozen precipitation (in 1/s units) each of the species provided in the 'species_names' object.