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Compressibility factor, however, that does directly affect the propagation of sound through water. This compressibility factor will affect the sonic velocity computations at varying depths, see ‘Sonic velocity and sound channels’ later in this Section. 4 Conductivity Conductivity is the measure of electrical current flow potential through a solution. In addition, because conductivity and ion concentration are highly correlated, conductivity measurements are used to calculate ion concentration in solutions.

Storm classes III, IV, V: combinations of class I and II. The storm class is characterized by storm duration, time of growth and time of decay. 29 shows the dimensionless wind force versus time. 9 gives the frequency of occurrence of the storm shapes and the mean shapes of duration (from measurements in the Black Sea, Boukhanovsky et al. (2000)). While I is triangular, II is more trapezoidal in shape. Storm class III is similar to IV, but the peaks exchanged (not drawn). 9. Wave class II (wind waves) shows for all classes of wind and storm the largest percentage.

Longuet-Higgins (1952) developed the statistical distribution of the wave heights. 23. Fitted are measurements at station 46001 in the North Pacific for one month, Chung-Tu Teng et al. (1994). 54) A, B, C are parameters for location, scale, and shape, selected to fit measured data to the distribution. An extreme value of a wave height is then associated with a return interval in the time domain, called return period. 55) 7/25/2008 7:35:40 PM The marine environment Common return periods are the assumed lifetime of a ship (30 years), for stationary designs (platforms, dikes) 50 or 100 years.

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