采用最小二乘法计算八个分潮M2，S2，N2，K2，K1，O1，P1和Q1的调和常数，进行潮位自报，与给定的潮位进行比较（画图）并计算方差，在结果验证的基础上进一步模拟潮位位变化(The harmonic constants of eight tides M2, S2, N2, K2, K1, O1, P1 and Q1 were calculated by the least square method. The tidal level was self-reported, compared with the given tide level (drawing) and the variance was calculated, and the tidal level change was simulated on the basis of the results)