Wave Height Frequency Distribution

This distribution function of the wave height was confirmed by measurements in the Baltic Sea (Druet et al. 1972 Paszkiewicz, 1973). 

From this function the following relationship is derived, which can be used to calculate various characteristic numbers for the wave height (see above) in relation to the average or characteristic wave height. 

cumulative frequency distribution when exceeding a threshold value p. z, water depth. 

In the relevant literature as well as in sea state analyses and forecasts, in addition to the significant wave height also other statistical characteristics for the wave height (see above) are used, such as the average height of the waves, which comprise the top 10% (Hj/io) or 

3 IVave Spectra Statistically, the sea state can be described by means of the variance spectrum of the surface oscillation (see Section 7.1.4.3). This variance spectrum is directly proportional to the energy of the sea state. It describes how the energy components of the sea state are distributed to its corresponding frequencies (periods) depending on the direction. 

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TABLE 7.7 Frequency Distribution of the Wave Height H3% in the Baltic Sea East of IS E and South of 60°N (from Registrar of the USSR, 1974)... 

Frequency distributions of significant wave height for four intervals (0-1, 1.5-2.5,... 

Two-dimensional frequency distributions of wave direction and significant height... 

Two-dimensional frequency distributions wind force and significant wave height... 

In Table 7.10 the absolute and relative frequency distributions of the wave height for the area of the Northern Baltic Sea have been compiled by DWD, (2006). In the rows Longitude/ Latitude of part (c) of the table positional information is provided. This information was calculated from the observations and marks the center of the area. 

TABLE 7.10 Frequency Distributions and Extreme Valnes of the Significant Wave Height... 

The principal method of TS detection is based on the registration of the number of bursts (or waves) per second of the electrical signals. The electronic components include also a circuit to register the primary frequency components in the TS burst signal. The occurrence of the individual frequencies, is stored and recorded as a distribution versus frequency curve. The output curves are a scan of the TS activity versus temperature and the pulse height analyzer output that gives the density distribution per 1°C of TS activity. 

On a basis of the comparative analysis of the references the correlated dependencies between the optical characteristics of aqueous sols of spherical nanoparticles and their diameter have been discovered. As a result, the empirical dependencies between the values of the square of wave frequency in the adsorption maximum of the surface Plasmon resonance and average diameter of the nanoparticles were determined as well as between the values of the adsorption band width on a half of its height and silver nanoparticles distribution per size. Proposed dependencies are described by the linear equations with the correlation coefficients 0.97 and 0.84, respectively. 

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