An analytical model for the altitude variation of aerosol number densities in the coastal atmospheric boundary layer

✍ Scribed by K. Parameswaran; Rekha Rajan

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 243 KB
• Volume: 61
• Category: Article
• ISSN: 1364-6826
• DOI: 10.1016/s1364-6826(99)00037-1

✦ Synopsis

A simpli®ed one dimensional analytical model to describe the altitude variation of aerosol number densities in the atmospheric boundary layer during clear sky and calm/moderate wind conditions, over a plane terrain on the tropical seacoast, is developed. The analytical model is mainly de®ned by two parameters, the aerosol mixing height and the exponential rate of decrease above the mixing height. The eect of surface impaction is also taken into account in this model. It is seen that this parameter varies with season. By matching the analytical pro®le with the observed mean pro®le in each month, the surface source strength has been estimated. The seasonal and inter-annual variations of this parameter are studied.