Air Transport into and out of the Industrial Highveld Region of South Africa

Eolian dust and industrially derived sulfur aerosols have been shown to be major summer and winter constituents of the ubiquitous southern African haze layer. Industrial emissions from the South African industrialized Highveld are exported out of the region and have an impact on remote regions of the subcontinent. Simultaneous use of kinematic trajectory and thermodynamic (vertical structure) analyses are used to describe the four-dimensional nature of the atmosphere and the extent of direct and recirculated transport of elevated aerosol concentrations over and exiting the Highveld.