ATMOSPHERIC STUDIES RELATED TO AEROSPACE ACTIVITIES AND REMOTE SENSING TECHNOLOGY.

This report decribes the results of a three-phase program of atmospheric studies related to aerospace activities and remote sensing technology. Parallel investigations were conducted relating to: (a) the sensitivity of 1-D photochemical model simulated column ozone perturbations due to a projected fleet of 1000 aircraft cruising 7 hours per day at altitudes of 15-16 and 18-19 km to uncertainties in kinetic rate constant data determining modeled OH concentrations and eddy diffusivity profile parameterization, (b) a comparison of the inherent strengths and weaknesses of Eulerian and Langrangian averaging processes in the development of multidimensional models and investigation of approaches to applying the Generalized Lagrangian Mean (GLM) formalism to zonal-mean models, (c) the role of multiple scattering and Earth curvature in the evaluation of diurnally dependent photodissociation rates and trace species variations and approaches for including a priori information on diurnal trace species variation in occultation based inversion algorithms.