The modification of continental polar air over Hudson Bay

Abstract Changes in the physical properties of continental polar air are studied for air currents with trajectories over the Hudson Bay region. Computations indicate that westerly air streams crossing Hudson Bay in early winter are modified to a depth of 5 to 10 thousand ft. By midwinter, however, t...

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Bibliographic Details
Published in:Quarterly Journal of the Royal Meteorological Society
Main Author: Burbidge, F. E.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1951
Subjects:
Online Access:http://dx.doi.org/10.1002/qj.49707733304
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49707733304
https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49707733304
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Summary:Abstract Changes in the physical properties of continental polar air are studied for air currents with trajectories over the Hudson Bay region. Computations indicate that westerly air streams crossing Hudson Bay in early winter are modified to a depth of 5 to 10 thousand ft. By midwinter, however, the modification is found to be negligible. This lack of modification in midwinter is attributed to the formation of an ice surface on Hudson Bay. Changes in the climate of the surrounding area caused by the formation of ice on Hudson Bay are illustrated by changes in temperature, cloud and snowfall. The modifying influence of the Bay in cooling the air in summer and heating the air in early winter is also discussed.