Oceanic tides are periodic sea-level oscillations driven primarily by the gravitational forces of the Moon and Sun and the Earth’s rotation, expressed as propagating long waves in the ocean basins. They are described as equilibrium and dynamic tides, with the latter governed by the Laplace tidal equations that incorporate Coriolis effects, bathymetry, and basin geometry. Tides are decomposed into harmonic constituents (e.g., M2, S2, K1), each with distinct frequencies and phases, enabling precise tidal prediction. They play critical roles in coastal dynamics, mixing, and energy dissipation, and are significant for processes such as sediment transport and ocean circulation.
Ocean tides push upstream along coastal rivers, in some cases reaching hundreds of kilometers (hundreds of miles) inland. These inland stretches are known as tidal rivers, and they're the scene of complex interactions between ...
Earth Sciences
Jul 14, 2026
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A single monitoring network developed by McGill, Natural Resources Canada, Université du Québec à Montréal (UQAM) and Dalhousie University researchers can simultaneously track earthquakes, water behavior, human activity and ...
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Environment
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Earth Sciences
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Life on Earth took a long evolutionary journey that eventually created us, the purportedly intelligent species that dominates the planet. But there was no grand plan or design, only happenstance, nature and luck. Life on ...
Planetary Sciences
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Earth Sciences
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Earth Sciences
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Earth Sciences
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Florida State University research published in Science Advances demonstrates a new framework for predicting the motion of kilometer-scale underwater waves that complicate satellite readings of the ocean.
Earth Sciences
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Understanding the dynamics of how water moves is deceptively simple in concept and endlessly complex in practice. Real-world marine environments are anything but controlled: weather, seasons, and geography change constantly. ...
Earth Sciences
May 29, 2026
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