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Intensity of vertical turbulent exchange in the Black Sea summer pycnocline around the Crimean peninsula

机译:在克里米亚半岛周围的黑海夏季斑块斑块的垂直湍流交换强度

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When taking small-scale structure field measurements in the upper stratified layers the probe-turbulimeter with high sampling frequency is used. By the spectra of temperature fluctuations and velocity we are evaluated by virtue of the previously developed theory the characteristic scales of turbulent patches formed due to the internal waves breaking. Then the vertical turbulent diffusion coefficient dependence on buoyancy frequency for the specified layers is determined. It is shown that the spatial distribution of coefficient depends on the bottom topography; its maximum values are concentrated in the interface area of the shelf and continental slope, due to intensification of shear instability and internal waves breaking in this region.
机译:在上层层中采取小规模结构场测量,使用具有高采样频率的探针湍流。通过温度波动和速度的光谱,我们通过先前开发的理论评估了由于内部波断裂而形成的湍流斑块的特征尺度。然后确定垂直湍流扩散系数对指定层的浮力频率的依赖性。结果表明,系数的空间分布取决于底部地形;由于该区域中剪切不稳定性和内部波的强化,其最大值集中在搁板和大陆坡的界面区域中。

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