def mass_transfer_coefficient_OILTRANS(wind_speed, length, schmdt_nmbr):
    """
    Return the mass transfert coefficien [m/s], formula derived
    from (Mackay and Matsugu, 1973)
    source : (Berry et al., 2012)

    Parameters
    ----------
    wind_speed : Wind speed 10 meters above the surface [m/s]
    length : Downwind length of the oil slick axis [m]
    schmdt_nmbr : Schmidt number []


    """
    return (0.0048 * (wind_speed **(7/9)) * (length ** (-1/9))
            * schmdt_nmbr ** (-2/3))