Douglas scale


Douglas scale

n 1. (Nautical Terms) an international scale of sea disturbance and swell ranging from 0 to 9 with one figure for disturbance and one for swell 2. (Physical Geography) an international scale of sea disturbance and swell ranging from 0 to 9 with one figure for disturbance and one for swell [C20: named after Sir Henry Douglas (1876–1939), former director of the British Naval Meteorological Service]