Similar to what happens off the Chinese coast of the East China Sea, ASL show very high longshore coherence which suggests that during winter subtidal sea level fluctuation along the southeastern coast of China is controlled by some common mechanism.

• 与东海沿岸冬季情况类似,南海北部沿岸水位波动有很高的空间相关性,说明冬季我国东南沿海的亚潮波动受某一共同机制的控制。