Subsurface layering, pre-existing or as the result of persistent deposition, is included. Contaminant capabilities include transport and fate of any number of conservative contaminants, and heat. Transport of radionuclides and their selective sorption interaction with sediment size classes, including subsurface sediments, has recently been developed. Nitrates and dissolved oxygen are currently being implemented. Channel systems may comprise a single channel, branched systems, or looped networks of arbitrary connectivity and flow direction.
Contaminant simulation requires contaminant inflow rates at upstream inflow points.
Initial distributions of contaminant or suspended-sediment concentrations are useful but not required. Modest applications can be performed in a 640- k DOS environment. Graphical support must be provided by the user. Mobile-bed dynamics in the Missouri River from Ft. All equations and their numerical solution procedures accommodate reversing unsteady flow, e.g. in estuaries.