不同重现期潮位的经验估算方法

Empirical Estimating Methods for Tide Level with Different Return Periods

不同重现期潮位的估算方法在工程设计的前期阶段具有一定的实用意义。鉴于潮位值随基面变化的相对性,本文将资料中的潮位值均统一至平均海平面起算。并根据实际工作中掌握资料的多少不同,将经验估算的方法分为3类加以统计推算。统计推算主要采用最小二乘法进行相关分析,最终建立不同重现期潮位间的相关关系,并编制表格便于查阅。

The estimating methods for tide level with different return periods are practicable in the early stage of engineering design. According to the relative variation of tidal level with the change of datum level, the tide level values are unified to be based on mean sea level. The empirical estimating methods are divided into three categories so as to carry out statistics and prediction on the basis of the quantities of data gained in practical work. The least squares method is applied to the correlation analysis of the statistics and prediction in order to build the relationship of tide level with different return periods finally, and compile the table for convenience of reading.