Cloud-Microphysics

Two-moment stochastic collection equation (SCE) for cloud-droplet coalescence (Tzivion, Feingold & Levin 1989), scalarized to I=5 mass-doubling categories. Two models, one per collection kernel: StochasticCollectionConstant (K=K0) and StochasticCollectionGolovin (K=C(x+y)). Each tracks number concentration N_k and mass concentration M_k in every category and closes the higher moments with the non-dimensional parameter xi_p. Migrated from the array-variable @component in Aerosol.jl src/stochastic_collection.jl @ c8c640bb636b22f2425460e9ed5cba50793bfee1 (esm-ar1e); the upstream @arrayop/@makearray array operations were scalarized to flat scalar states and equations.

Two-moment stochastic collection equation (SCE) for cloud-droplet coalescence (Tzivion, Feingold & Levin 1989), scalarized to I=5 mass-doubling categories. Two models, one per collection kernel: StochasticCollectionConstant (K=K0) and StochasticCollectionGolovin (K=C(x+y)). Each tracks number concentration N_k and mass concentration M_k in every category and closes the higher moments with the non-dimensional parameter xi_p. Migrated from the array-variable @component in Aerosol.jl src/stochastic_collection.jl @ c8c640bb636b22f2425460e9ed5cba50793bfee1 (esm-ar1e); the upstream @arrayop/@makearray array operations were scalarized to flat scalar states and equations.