Northern River Ice Regimes

Regions: Inuvialuit Settlement Region, South Slave Region

Tags: ice thickness, river ice, infrastructure, hydro-electric, ice retreat, ice growth

Principal Investigator: Sherstone, David A. (12)
Licence Number: 11006
Organization: Science Institute of the Northwest Territories Indian and Northern Affairs Canada
Licensed Year(s): 1993 1992 1991 1990 1988
Issued: Jan 01, 1991
Project Team: D. Sherstone, Gary White (Inuvik), Les Kutny (Inuvik), Andrew Forbes (Hay River) and Norman McCowan (Hay River)

Objective(s): To monitor the rates of ice growth and decay and to observe maximum ice thickness achieved in a variety of Arctic and sub-Arctic river channels. Determination of the timing of maximum thickness as information for predicting impacts on ice regimes of upstream hydro-electric development projects and/or river regulation. Data from the Mackenzie Delta gauges are to be used as imput to Inland Waters Directorate, NOGAP - funded, Delta hydrology studies.

Project Description: Simple, inexpensive ice thickness gauges are installed on river channel ice. Usually 3-4 gauges per channel. Twenty gauges are installed in the Mackenzie Delta and 12 in Hay River. Every 10 days the gauges are read to obtain the total ice,white ice and snow quantities at each site. From this data the rates of ice growth and decay can be calculated and the approximate date at which the ice will reaches its maximum thickness.