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Estimating wave energy from a wave record

Berechnung der Wellenenergie anhand einer Wellenaufzeichnung

Estimation de l'énergie de la houle d'après un enregistrement

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Summary

This note is concerned with the calculation of wave energy from a time series record of wave heights. Various methods are used to estimate the wave energy. For wave records that contain a number of different frequencies, it is shown that the most accurate method for calculating the wave energy is by the use of Fourier analysis.

Zusammenfassung

Diese Arbeit befaßt sich mit der Berechnung der Wellenenergie aus Zeitserien-Aufzeichnungen von Wellenhöhen. Verschiedene Methoden werden benutzt zur Berechnung der Wellenenergie. Es wird dargelegt, daß bei Aufzeichnungen, die eine Anzahl verschiedener Frequenzen enthalten, die Anwendung der Fourier-Analyse die genaueste Methode zur Bewertung der Wellenenergie ist.

Résumé

Cette note concerne le calcul de l'énergie de la houle à l'aide d'une série d'enregistrements minutés de hauteurs de vagues. Diverses méthodes sont utilisées pour estimer l'énergie de la houle. Pour les enregistrements qui comportent une quantité notable de fréquences différentes, on montre que la méthode la plus précise pour l'évaluation de l'énergie de la houle est l'analyse de Fourier.

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Author notes

  1. Sasithorn Aranuvachapun

    Present address: School of Environmental Sciences, University of East Anglia, NR4 7TJ, Norwich, England

  2. John A. Johnson

    Present address: School of Mathematics and Physics, University of East Anglia, NR4 7TJ, Norwich, England

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    1. Sasithorn Aranuvachapun
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    2. John A. Johnson
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    Aranuvachapun, S., Johnson, J.A. Estimating wave energy from a wave record. Deutsche Hydrographische Zeitschrift 30, 26–30 (1977). https://doi.org/10.1007/BF02227052

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    • DOI: https://doi.org/10.1007/BF02227052

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