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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pierson–Moskowitz spectrum ： ウィキペディア英語版 Pierson–Moskowitz spectrum The Pierson–Moskowitz (PM) spectra is an empirical relationship that defines the distribution of energy with frequency within the ocean. Developed in 1964 the PM spectrum is one of the simplest descriptions for the energy distribution. It assumes that if the wind blows steadily for a long time over a large area, then the waves will eventually reach a point of equilibrium with the wind. This is known as a fully developed sea. Pierson and Moskowitz developed their spectrum from measurements in the North Atlantic during 1964, and presented the following relationship between energy distribution and wind: The observations of Pierson and Moskowitz were carefully re-analyzed in a 2003 investigation, which confirmed some values and proposed new thresholds to the original observations. == References == 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「Pierson–Moskowitz spectrum」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.