meansealevel
Mean sea level is a term used in oceanography and geodesy to refer to the average height of the ocean's surface over a long period, typically 19 years, which is a full lunar cycle. This averaging period is used to minimize the effects of shorter-term variations such as tides, waves, and seasonal changes. Mean sea level serves as a reference point for measuring elevations and depths. It is crucial for a variety of applications, including coastal management, navigation, and understanding climate change impacts.
Changes in mean sea level can be caused by several factors. Thermal expansion of seawater, where warmer