Abstract

This report presents the details of the most recent version SOCRATES (Simulation of Chemistry, Radiation and Transport of Environmentally important Species). Major changes in SOCRATES from the previous version include: * Model domain extended up to 120 km altitude to include mesospheric and therm... Show moreThis report presents the details of the most recent version SOCRATES (Simulation of Chemistry, Radiation and Transport of Environmentally important Species). Major changes in SOCRATES from the previous version include: * Model domain extended up to 120 km altitude to include mesospheric and thermospheric processes (molecular diffusion, simplified ionic productions, tidal wave forcing etc.). * UV Radiative transfer. that accounts for multiple scattering by air molecules, aerosols and clouds. Parameterization of aerosol and cloud radiative effects in the infrared. * Non-LTE infrared radiation for the mesosphere. * Planetary wave model to parameterize interactions between planetary wave and mean flow. * Update of the gravity wave forcing parameterization. * Option of imposing QBO forcing. * Circulation boundary condition moved down to 2 km and determined from physical principles. * Tropospheric winds and temperature calculated interactively with specified forcing. * Semi-Lagrangian transport scheme used to solve for chemical transport. * More detailed tropospheric hydrocarbon chemistry. * Diurnal averaging scheme that allows for diurnal variation for chemical species. * Parameterization of convective and frontal induced vertical transport in the troposphere. Show less