The Ocean Areas by British Antarctic Survey (source code)

= The Ocean Areas by British Antarctic Survey
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https://legacy.bas.ac.uk/met/momu/International_Antarctic_Weather_Forecasting_Handbook/2.2_Ocean%20Areas.php

International Antarctic Weather Forecasting Handbook, section 2.2.1, surface ocean circulation pattern. Describes wind stress, seabed geometry and density gradients, and distinguishes the coastal westward circulation from the eastward Antarctic Circumpolar Current.