世界各国对海洋潮汐运动的研究由来已久,现在,对世界各主要港口的潮汐已能够进行较准确的推算和预报。然而,随着观测手段的进步和资料的不断积累,人们愈加感到大洋中(包括赤道区在内)的潮汐运动,实际上比人们所想象的要复杂得多,不仅其潮位(流)的大小因地而异,而且其高潮间隙、潮令也千差万别。为了解释这复杂的潮汐现象, Since many countries in the world have been studying the ocean tides for a long time, the tides in the major ports of the world have now been able to make accurate projections and forecasts. However, with the improvement of observational means and the accumulation of data, people are more and more aware of the tidal movement in the oceans (including the equatorial zone), which is actually more complicated than people think. Not only the size of the tide level Vary from place to place, and the climax of the gap, the tide is also vastly different. To explain this complex tidal phenomenon,