An investigation of a polynya in the Canadian Archipelago: 3. Surface heat flux

Abstract
The heat loss from the Dundas Island polynya is calculated for a 3 week period during March 1980. Bulk and free convection formulae based on sonic anemometer‐thermometer measurements are used to calculate the sensible and latent heat fluxes. These terms, along with simple models to calculate the albedo and the long‐wave radiation exchanges, yield a surface heat budget for the polynya. The sensible heat flux for the period March 12, 1980, to April 1, 1980, averaged 204 W/m2 and the mean total heat loss from the polynya was 329 W/m2.

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