According the highest tide level,the increased water level,economic loss and so on,the theory of "least square method" was used to establish the mathematical model(y=123.
并利用“最小二乘法”的思想,根据历次风暴潮最高潮位、增水强度及经济损失等资料,建立了评估风暴潮直接经济损失的数学模型y=123。
Solar tides are added to lunar tides to form the unusually high and low spring tides.
太阳引起的潮汐加到月亮引起的潮汐上,形成涨潮特高落潮特别低的大潮。