Author(s): Michael G. Ferrick
Linked Author(s): Michael G. Ferrick
Keywords: No Keywords
Abstract: Rapidly varying flow waves are a primary cause of ice cover breakup on rivers. Due to the presence of ice and the difficulties involved in determining conditions in the field, analyses of river waves during breakup are subject to much uncertainty. We conducted laboratory experiments to determine the effects of the ice cover upon these waves, and to identify the physical processes that produce these effects. The dimensionless friction scaling parameter of the St. Venant equations provides a quantitative estimate of the friction/inertia balance that dictates river wave behavior. Knowledge of this balance Is essential to the interpretation and analysis of flow wave data. In this paper we apply the friction parameter in our interpretation of the laboratory data and address discrepancies between data and previous analyses of an ice jam release on the Athabasca River.
Year: 1984