The shallow water ice profiler (SWIP) is a real-time upward looking sonar that acoustically detects ice draft (i.e., measures ice thickness). The SWIP unit was used for three time periods from September 2008 to December 2010. It was deployed in Lake Tasikallak in northern Quebec. This lake is an important over-wintering location for Arctic char and is situated near the Baudan River which connects to Ungava Bay.

For each SWIP deployment, ice drafts from the SWIP data were converted to total ice thickness. SWIP-derived total ice thicknesses were compared against simple ice thickness equations (i.e, Lebedev model). Lake bottom temperature data were also recorded. The integration of Earth observation satellite data, SWIP ice thickness data, and in-situ temperature data provides for a complete ice monitoring system.

Select the monitoring period of interest to access detailed data on ice thickness, the Lebedev model, and bottom temperature.

Sketch of Field Deployment