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海面动荡起伏、瞬息万变。从许多实用问题的要求,往往要引用平均海面。平均海面是指某一段时间内实测潮位资料的算术平均值、统计值,或指某种滤波运算所得的量值。 研究平均海面是海洋科学为生产服务的重大课题之一。海洋潮汐预报不准确的一个原因就是平均海面不规则变化所引起的;平均海面缓慢而有规律地变化会导致海面倾斜,从而将产生相应的海流。有关沿海工程设计,必需参考平均海面的变化规律,否则会造成不应有的
Sea turmoil, rapidly changing. From many practical questions, the average sea level is often quoted. The mean sea level refers to the arithmetic average of measured tidal level data over a period of time, the statistical value, or the magnitude of a certain filtering operation. The study of the average sea surface is one of the major topics for marine science to serve production. One of the reasons for the inaccurate tidal forecasts of the oceans is the variation of the mean sea surface; slow and regular changes in the average sea surface can cause the sea to tilt, which will result in a corresponding ocean current. For the design of coastal projects, it is necessary to refer to the variation law of the average sea surface, otherwise it will cause unnecessary