Author(s): Sanjay Singh; George Comfort
Linked Author(s): George Comfort
Keywords: No Keywords
Abstract: This paper describes a thermal ice load model that was developed using basic environmental data that are available on a long-tenn basis. The model inputs are the daily mean air temperature, the rainfall, and the snow on the ground. From these inputs, the thickness of the reservoir ice sheet, snow cover, and slush are predicted. Heat flow analyses are then used to estimate temperature in the ice sheet. The change in ice temperature profile-area is related to the thermal load. The model's results were verified for various dams in Quebec, Ontario and Manitoba, where field temperature and ice thermal loads were measured during the last five years. Next, hind-cast analyses were performed using long tenn environmental data for three sites, and extreme value analyses were conducted to detennine the severity of the thermal loads.
Year: 1998