Modification of Aerosol Size Distributions in the Troposphere

This work is an extension of the study of tropospheric aerosols begun in 1964 by Christian Junge. The model presented for description of these aerosols contains more processes than Junge originally considered and the model was allowed to run longer. Irving Blifford and Junge initiated this investigation to determine the relative importance of various processes in modifying the aerosol populations. James Burgmeier was originally the programmer for the project, but later made contributions to the numerical implementation of the model, to improvement of numerical procedures, and to tests for assessing the accuracy and dependability of the computerized model. He also carried out stability studies to assure accuracy in long runs. Additionally, Blifford and Burgmeier have used the results and methods presented here as a starting point for more elaborate models. The research reported here was completed in summer 1972.