Source code for dmelon.ocean.core

"""
General functions used specifically in ocean data analysis
"""

import numpy as np


class DispersionRelation:
    """
    Dispersion Relation
    """

    @staticmethod
    def low_freq(m):
        """
        Compute the scaled wavenumber and frequency for the mode m
        """
        BETA = 2.29e-11
        C = 2.7
        CONST1 = (BETA * C) ** (1 / 2)
        CONST2 = (BETA / C) ** (1 / 2)
        k = np.arange(-10, 10, 0.1)
        w = -k / (2 * m + 1 + k**2)
        return w * CONST1 * 60 * 60 * 24 / (2 * np.pi), k * CONST2 * 110e3 / (2 * np.pi)