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The origin of Earth's ocean tides has been a subject of continuous investigation for over 2000 years. However, the work of Newton is considered to be the beginning of the proper understanding of the phenomenon. Ocean tides are the result of gravitational tidal forces. These same tidal forces are present in any astronomical body; they are responsible for the internal heat that creates the volcanic activity on Io, one of Jupiter's moons, and the breakup of stars that get too close to black holes.
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Properties of Laplace Transform-II

Time differentiation, convolution, integration, and periodicity are fundamental concepts in analyzing functions and signals over time. Each concept provides a unique perspective on how functions evolve, interact, and repeat, offering essential tools for various scientific and engineering applications.
Time differentiation involves analyzing the rate of change of a function over time. Mathematically, it is the derivative of a function with respect to time. This concept can be likened to tracking...
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Partial Differential Equations

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Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
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Video Experimental Relacionado

Updated: Jul 12, 2026

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton
08:15

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton

Published on: July 28, 2023

Mareas oceánicas hacia y desde TOPEX/POSEIDON.

C Le Provost, A F Bennett, D E Cartwright

    Science (New York, N.Y.)
    |February 3, 1995
    PubMed
    Resumen

    La misión TOPEX/POSEIDON mejoró significativamente los modelos de mareas oceánicas. Los datos altimétricos mejoraron la precisión en un 30% para el componente de marea lunar M{\displaystyle M} , alcanzando los límites prácticos de precisión.

    Área de la Ciencia:

    • Oceanografía La oceanografía es la oceanografía.
    • La geofísica es la geofísica.
    • Altimetría por satélite.

    Sus antecedentes:

    • Los modelos precisos de mareas oceánicas son cruciales para comprender las variaciones del nivel del mar y la dinámica del océano.
    • Los modelos de marea anteriores tenían limitaciones en la precisión y la cobertura global.

    Objetivo del estudio:

    • Evaluar la exactitud de las soluciones de marea derivadas de los datos del primer año de la misión TOPEX/POSEIDON.
    • Para comparar estas nuevas soluciones con modelos existentes y mediciones in situ.

    Principales métodos:

    • Se utilizaron datos del primer año de la misión de altimetría por satélite TOPEX/POSEIDON.
    • Comparó las soluciones de marea derivadas con modelos de mareas oceánicas establecidas.

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  • Resultados validados con un conjunto de datos globales de 78 estaciones de marea in situ.

    • Principales resultados:

    • Demostró mejoras sustanciales en las soluciones de marea en comparación con los modelos anteriores.
    • Se logró un aumento del 30% en la precisión para el componente de marea lunar principal (M2) basado en diferencias de raíz-media cuadrada.
    • Destacó la alta calidad de los datos altimétricos TOPEX/POSEIDON como el principal impulsor de la mejora.

    Conclusiones:

    • Los datos de TOPEX/POSEIDON representan un gran avance en el modelado de mareas oceánicas.
    • La asimilación de los datos altimétricos con modelos numéricos se acerca a los límites de la precisión práctica para las soluciones de marea.