VERIFICATION OF A TRANSIENT INPUT, 2-DIMENSIONAL, RIVER MIXING MODEL

A two-dimensional river mixing model capable of handling unsteady inpu t conditions is evaluated in this study. The numerical model utilizes a streamtube representation of the river and a calculation grid which is optimized to eliminate errors associated with advective transport c alculations. The application of the modelling procedure to natural riv er systems is evaluated by comparing model output with the results of tracer studies conducted on the North Saskatchewan, Peace, and Slave r ivers. The study results represent a far more extensive field verifica tion of this modelling procedure than had been previously reported by other authors.