摘要
本文使用最大熵谱分析对美国东海岸28°～42°N之间的海流流速实测数据进行功率谱分析,识别在序列资料中的周期振动,探讨该海区近岸潮流以及非潮流波动的基本规律和性质.分析结果表明,美国东海岸以半日潮振动为主,低频振动也十分明显,且能量较全日潮波动的能量大.
A detailed description on the basic principle of maximum entropy analysis method is introduced,and the power spectra of sea-current data observed from 28°N to 42°N on east coast of the United States are analyzed by using maximum entropy method.This study found the periodic oscillation in the time-sequence data,revealed the basic regulation and character of the tide currents and non-tide current waves in the area.The analysis results show that semi-diurnal tide waves are predominant at the sea near east coast of the United States,low-frequency oscillation is very obvious too,and their energy is larger than diurnal tide waves.
出处
《海洋预报》
2005年第1期22-30,共9页
Marine Forecasts
