论文标题
使用系泊温度传感器在弱分层深的西方水域中进行湍流观测
Turbulence observations using moored temperature sensors in weakly stratified deep West-Mediterranean waters
论文作者
论文摘要
在稳定的分层海洋中，小规模的湍流对于垂直交换至关重要，因此对于水块和悬浮物的混合。为了观察到其背后的湍流运动以及浮力和剪切生成器，在2480米深的海底，在西地中海西部陡峭的大陆斜坡附近停泊了100米高的高分辨率温度（T）传感器。该区域由边界流，（子）中尺度涡流，内波，冬季密集的水形成和非常弱的垂直密度分层主导。通过季节性周期进行详细观察到各种物理海洋学过程，包括：夏末和秋季的剪切驱动弱分层的低湍流，地热供热从下面的地热驱动到冬季的惯性内波运动，而在冬季进行中等浮力的湍流，并从上面和春季从上面和春季推出。
In the stably stratified ocean, small-scale turbulence is important for vertical exchange and hence for the mixing of water masses and suspended matter. To observationally study turbulent motions and the buoyancy- and shear-generators behind them, a 100-m tall array of high-resolution temperature (T) sensors was moored at a 2480-m deep seafloor near the steep continental slope of the Western Mediterranean Sea. The area is dominated by boundary flow, (sub-)mesoscale eddies, internal waves, wintertime dense water formation, and very weak vertical density stratification. Various physical oceanographic processes are observed in detail through a seasonal cycle, including: Low shear-driven turbulence in weak stratification in late-summer and autumn, large buoyancy-driven turbulence by geothermal heating from below alternated with inertial internal wave motions in winter, and moderate buoyancy-like turbulence pushed with stratified waters from above in late-winter and spring.
