Abstract. Formation of new particles in the atmosphere has important
implications for air quality and climate. Recently, we have developed a
kinetically based H2SO4–H2O–NH3-ion nucleation model
which well captures the absolute values of nucleation rates as well as
dependencies of nucleation rates on NH3 and H2SO4 concentrations, ionization rates, temperature, and relative humidity
observed in the well-controlled Cosmics Leaving Outdoor Droplets (CLOUD)
measurements. Here we employ the aforementioned recently developed kinetic
nucleation model to generate nucleation rate lookup tables for
H2SO4–H2O binary homogenous nucleation (BHN),
H2SO4–H2O–NH3 ternary homogeneous nucleation (THN),
H2SO4–H2O-ion binary ion-mediated nucleation (BIMN), and
H2SO4–H2O–NH3-ion ternary ion-mediated nucleation
(TIMN). A comparison of nucleation rates calculated using the lookup tables
with CLOUD measurements of BHN, BIMN, THN, and TIMN is presented. The lookup
tables cover a wide range of key parameters controlling binary, ternary, and
ion-mediated nucleation in the Earth's atmosphere and are a cost-efficient
solution for multidimensional modeling. The lookup tables and FORTRAN
codes, made available through this work, can be readily used in 3-D
modeling. The lookup tables can also be used by experimentalists involved in
laboratory and field measurements for a quick assessment of nucleation
involving H2SO4, H2O, NH3, and ions.