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Douglas Sea Scale : ウィキペディア英語版 | Douglas sea scale The Douglas Sea Scale is a scale which measures the height of the waves and also measures the swell of the sea. The scale is very simple to follow and is expressed in one of 10 degrees. == The scale ==
The Douglas sea scale, also called the "international sea and swell scale", was devised in the 1920s by Captain H.P. Douglas, who later became vice admiral Sir Percy Douglas and hydrographer of the Royal Navy. Its purpose is to estimate the roughness of the sea for navigation. The scale has two codes: one code is for estimating the sea state, the other code is for describing the swell of the sea.〔(UK Meteorological Office Fact Sheet 6 ), accessed 24 Sept 2012〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Douglas sea scale」の詳細全文を読む
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