PHYSICOCHEMISTRY OF AIRCRAFT-GENERATED LIQUID AEROSOLS, SOOT, AND ICEPARTICLES - 1 - MODEL DESCRIPTION

A coupled microphysical-chemical-dynamical trajectory box model simula ting the emission, formation, and evolution of particles in dispersing aircraft wakes and contrails is presented. The mutual interaction pat hways between the various liquid and solid aerosols are elucidated, in cluding a discussion of the involved microphysical processes. Free mod el parameters are constrained using data from in situ observations. Vo latile aerosol formation by binary nucleation, nonequilibrium heteromo lecular condensation, sulfur-induced soot activation, and ice nucleati on in wakes behind subsonic and supersonic aircraft are illustrated in case studies.