M2 Tidal Constituents

M2 tidal constituents refer to a specific component of the Earth's ocean tides caused primarily by the gravitational pull of the Moon. The "M2" represents the principal lunar semidiurnal (twice daily) tide with a period of about 12.42 hours. It is the strongest and most predictable tidal wave, influencing sea levels worldwide. M2 tides result in regular, cyclical rises and falls in ocean water levels, playing a vital role in coastal ecosystems, navigation, and climate studies. Understanding M2 helps scientists model and forecast tides accurately, which benefits maritime activities and coastal management.