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  • Metocean Campaign: Directional wave spectra calculated from raw wave data (February 28, 2019)

Metocean Campaign: Directional wave spectra calculated from raw wave data (February 28, 2019)

    Dia de Wijs
    • Public
    Asked by Dia de Wijs 177 days ago Answers (1)

    How have the directional wave spectra data displayed in the video files (..Spectra_Comparison.mp4) located in the folders “\03 - Validation report” of each of the data folders under “Metocean Campaign Data & Reports” been calculated?

    1 answer

      • Dia de Wijs
        • Public

        Dia de Wijs 177 days ago

        The 2d wave spectra are calculated from the WaveSpectraComponents file. “The heave spectra” refers to hspec (spectral density) in the WaveSpectraComponents file, together with the fourier coefficients (a1,b1,a2,b2) constitutes the basis for calculating directional wave spectra using the Maximum Entropy Method as was done to produce the plots and video files for the monthly and campaign reports.

         

        The attached paper Maximum Entropy Estimation of the Directional Distribution in Ocean Wave Spectra, Chapter 3Maximum Entropy Estimation of the Directional Distribution in Ocean Wave Spectra, Chapter 3 describes the Maximum Entropy Method.