Ocean tide is a periodic sea-level oscillation driven primarily by the gravitational forces of the Moon and Sun acting on Earth’s oceans, modulated by Earth’s rotation and the configuration of ocean basins. It manifests as propagating tidal waves with characteristic constituents (e.g., M2, S2, K1) describable by harmonic analysis. Tidal dynamics are governed by the shallow-water equations on a rotating sphere, incorporating Coriolis effects, coastal and seafloor topography, and resonance within semi-enclosed basins. Ocean tides play a fundamental role in coastal hydrodynamics, mixing, sediment transport, and energy dissipation in the Earth–Moon system.
In shallow coastal waters around the world, mud and other fine-grained sediments such as clay and silt form critical blue carbon sinks. Offshore infrastructure such as wind turbines and oil platforms, as well as fishing practices ...
Earth Sciences
May 6, 2025
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A study using data from ESA's Swarm mission suggests that faint magnetic signatures created by Earth's tides can help us determine magma distribution under the seabed and could even give us insights into long-term trends ...
Planetary Sciences
Jan 22, 2025
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106
The Earth and moon have been locked in a gravitational dance for billions of years. Each day, as the Earth turns, the moon tugs upon the oceans of the world, causing the rise and fall of tides. As a result, the Earth's day ...
Planetary Sciences
Dec 12, 2024
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