Here we present results from a global modelling study quantifying the contribution of different aerosol species to the ice nucleating particles concentrations in a global scale.
Using a global model of aerosol processes (GLOMAP-mode, Mann et al. 2010) we have simulated the distribution of feldspar, and marine organic INP. Using parameterizations of the ice nucleating ability of these species from laboratory studies, we can estimate the global distribution of ice nucleating particles. Our results suggest that feldspar aerosols dominate global INP concentrations. However, marine organic aerosols can contribute to INP.