论文部分内容阅读
本文以最大熵谱分析了中国沿岸１５个站１９７１～１９９５年月平均海面序列，得出中国沿岸月平均海面的主要振动为年振动和半年振动，而主要低频周期在中国北方各站为１８．６ａ，从长途至厦门各站为９ａ左右。然后以随机动态拟合分析方法计算出中国沿岸月平均海面相对上升速率范围为（１．０７±０．８３）ｍｍ／ａ，并同时指出该方法计算出的上升速率受时段长度及低频周期的影响．最后，给出了中国沿岸月平均海面变异的时空分布，并说明了厄尔尼诺现象主要影响中国南部沿海的月均海面．
In this paper, the maximum average entropy spectrum was used to analyze the monthly average sea surface series from 15 stations in China from 1971 to 1995. It is concluded that the monthly average sea surface vibration of China coast is annual vibration and half-year vibration, while the main low frequency periods are 18 stations in northern China. 6a, from the long-distance to Xiamen station for about 9a. Then, the relative average rising rate of monthly mean sea level over the coast of China was calculated to be (1.07 ± 0.83) mm / a using random dynamic fitting analysis method. Meanwhile, the rising rate calculated by this method was affected by the length of time and low frequency period influences. Finally, the spatial and temporal distribution of the monthly mean sea surface variations over the Chinese coast is given, and the El Niño phenomenon mainly affects the average monthly sea surface over the southern coast of China.