基于高低潮分析的天文潮推算

Astronomical tide calculation based on analysis of low and high tides

根据实测高、低潮资料,用三次样条插值法插补出逐时整点潮序列;然后用整点潮序列进行潮汐调和分析,以求得潮汐各分潮的调和常数;接着根据所得到的调和常数,进行天文潮推算。以江苏燕尾港高、低潮资料为例,计算结果表明该法具有精度高、速度快、简便实用等优点。

Based on the measured data of low and high tides,the cubic spline interpolation method is used to intrepolate the sequence of hourly punctual tides,then the sequence of punctual tides is used to carry out the tidal harmonic analysis so as to obtain the harmonic constants of every tide,then the astronomical tide is calculated according to the obtained harmonic constants.Taking the data of high and low tides in Yanwei harbour of Jiangsu Province for example,the calculation results prove that the method has the advantages of high accuracy,rapid speed,and being simple and practical.