Mathematical modeling of salt transport by coupled subsurface and surface water flows

A mathematical model is examined to describe the transport of salts by coupled flows of surface, soil, and subsoil waters for large-scale objects characterized by complex hydrogeologic conditions. Computational algorithms and computer programs developed for realization of the model are based on the use of finite-difference methods to distinguish between different physical processes and modeling regions. Results are presented from examples of calculations to illustrate characteristic features of the problem of mass transfer by coupled flows.