NUMERICAL STUDY OF THE INTERNAL WAVE BEHAVIOUR IN THE VERTICAL OCEAN SLICE MODEL

Internal waves can occur in the ocean and in the atmosphere. They contribute greatly to the ecosystem and climate change. Although the amplitude of internal waves within the ocean is very large, the effects of internal waves are very difficult to detect at sea level. The motivation of this article is to study the characteristics of internal waves. We use two-dimensional numerical methods in horizontal and vertical directions. In these numerical experiments, we set up the internal waves in the channel with length and width of 500 m and 100 m, respectively. This model has a resolution 5 m and 2 m in the horizontal and vertical direction, respectively. The density is added 10 kg/m(3) linearly with 10 m depth, while at the surface the density remains constant at 1028 kg/m(3). In order to drive the density disturbances in the channel, in the middle of the channel (5 grid cells), the density of 20 kg/m(3) is added for each layer. The result shows that the signal of internal wave time-series is varied in terms of amplitudes and periods. The minimum period is 62.8 s, and it is consistent with the theory.