海域湍流扩散系数的确定  

DETERMINATION OF MARINE TURBULENCE DIFFUSION COEFFICIENTS

作　　者：王发君[1] 

机构地区：[1]国家海洋局海洋环境保护研究所,大连116023

出　　处：《海洋通报》1992年第2期9-12,共4页Marine Science Bulletin

摘　　要：基于Taylor(1921)提出的湍流扩散理论,讨论了海洋中湍流的扩散机制,对如何确定海流中的湍流成份进行了论述。利用北黄海5号倾废区定点锚泊连续测流资料,计算了不同时间尺度的湍流扩散系数,给出了湍流扩散系数随时间尺度的变化关系。结果表明,海域湍流扩散系数不能用一常量来描述,它是随时间尺度而变化的量。Based on Taylor's turbulent diffusion theorem (1921) , presented in this paper were a discussion on the diffusion mechanics of marine turbulent flow and the determination of turbulent components in the ocean.The continuous current data from the fixed point observation at Waste Dumping Zone No. 5 in northern Yellow Sea was used to compute the turbulence diffusion coefficients of various time-scales. The relationship between the coefficients and time-scale was given out. The coefficient could not be represented by a constant value; it varied with time scales

关 键 词：海域 湍流 扩散系数 海流 

分 类 号：P731.21[天文地球—海洋科学]