Author(s)

L.J. Mata, R. Garcia & R. Santana

Abstract

Simulating acid deposition in tropical regions L.J. Mata", R. Garcia"^, R. Santana" de ^ c.a. Comma- ABSTRACT An Eulerian mathematical model has been developed to study acid depo- sition in north-western Venezuela, the model being applicable to similar tropical regions. Since the limited availability of information is a common circumstance in most tropical regions, the model is based on formulations that, while reproducing the main physical and chemical processes involved in the acid deposition phenomena, require a minimal amount of data. The model formulates conservation equations for five contaminants, allowing calculation of concentration, and wet and dry deposition distri- butions in space and time. The chemical transformations that take place in the atmosphere once the contaminants are emitted are taken into ac- count. The conservation equations are solved by an explicit finite differ- ence scheme using upwind di

Keywords