Douglas Sea Scale
The Douglas Sea Scale was devised by the English Admiral H.P. Douglas in 1917, while he was head of the British Meteorological Navy Service. Its purpose is to estimate the sea'...
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Douglas Sea Scale
The Douglas Sea Scale was devised by the English Admiral H. P. Douglas in 1921. Its purpose is to estimate the sea's roughness for navigation. The Douglas Scale consists of two codes...
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Douglas Sea Scale
Douglas Sea Scale