用给定的水位数据，选取73个分潮，利用潮汐调和分析，计算分潮的调和常数，利用调和常数结果选取4个主要分潮和2个浅水分潮，对实测水位进行回报，计算余水位，平均潮差，高低潮的潮时潮高并精确到min和cm，最后计算该站的潮汐类型。(By using the given water level data, 73 tides are selected, and the harmonic constants of the tide are calculated by the harmonic analysis of the tides. 4 main tides and 2 shallow water tides are selected by the result of the harmonic constant. The measured water level is returned, the residual water level, the average tidal range, the high tide tide and the high tide height are calculated to min and cm. Finally, the calculation is made. The tidal type of the station.)