基于LPB1-2型声学测波仪资料的近岸浪特征分析

为研究近岸浪的形态特征,利用LPB1-2型声学测波仪在某海域所测得的海浪数据对近岸浪特征要素进行统计分析,利用最大"熵"原理推导出了波高的最大"熵"分布,研究了状态参量对波高分布和波高"熵"的影响。研究表明,该海域的波主要以波高0.3~0.7 m,周期2.5~5.5 s的波为主,表示离散程度的特征值平均差为0.267,日极差值主要在0.1~0.4 m区间内,最大值为1.0 m,分布较为集中,波高分布近似为正态分布。

Characteristic Analysis of Nearshore Waves Based on the LPB1-2 Wave Observing Instrument

In order to research the characteristics of nearshore waves, the main elements of nearshore waves are analyzed based on the wave data collected by the LPB1-2 wave observing instrument from a certain sea area. The maximum entropy distribution of wave height is derived using the maximum entropy principle. This paper studies the effects of state parameters on wave height distribution and wave height entropy. The results show that the wave height in this sea area almost ranges from 0.3 m to 0.7 m and the cycle from 2.5 s to 5.5 s. It is also calculated that the wave average deviation is 0.267, and the day-range deviation is among 0.1 m and 0.4 m with its maximum value reaching 1.0. Therefore, the wave distribution is relatively concentrated while the wave height distribution is almost in accordance with the Gaussian distribution.