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南海中南部上层湍流混合空间分布特征及参数化方案研究; Spatial variation and Parameterization scheme of Turbulent mixing in the upper layer of Central and southern South China Sea
周宇
Subtype硕士
Thesis Advisor陈桂英
2015
Degree Discipline物理海洋学
Keyword湍流混合 空间分布特征 参数化方案 南海
Abstract垂向湍流混合参数化在海洋环流模式的模拟中起着重要作用,垂向湍流混合参数化可以为环流预测提供观测依据。本文利用2010年春季和2012年夏季的两个航次的温盐、流场及微结构观测资料及2011年12月到2012年8月南沙站(9°47.351′N,112°56.659′E)连续潜标观测数据,对南海中部和南部上层湍流混合空间分布特征及参数化方案研究。 在10oN断面,观测到了海山对上层湍流混合的增强效应。本文在南海低纬10oN断面发现涡扩散系数比在16oN和14.5oN断面高一个量级,同时也比大洋粗糙地形用ARGO资料观测的结果大数倍。 在16oN、 14.5oN和10oN断面,通过比较上层400m垂向平均单位体积湍动能耗散率<ερ>,得到其分布特征如下:在16oN断面上,东侧站位的上层400m垂向平均单位体积湍动能耗散率<ερ>呈现较大值,其中,在东侧站位117oE, &l...
Other AbstractVertical turbulent mixing parameterization plays an significant role in simulation of oceanic general circulation model,that provide the observation parameters for predicting circulation by model. Temperature and salinity, current and turbulent microstructure data at 16oN and 14.5oN in the spring of 2010, those at 10oN in the summer of 2012 are employed, in addition, continuous observation data acquired in mooring site (9°47.351′N, 112°56.659′E) from December 2011 to August 2012 have been analyzed to investigate spatial variation and parameterization scheme of turbulent mixing in the upper layer of Central and southern South China Sea. Enhancement effect of turbulent mixing over seamount in the upper layer in 10oN section was observed. Eddy diffusivity at 10 oN section was about an order o...
Document Type学位论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/14680
Collection学位论文(硕士)
Recommended Citation
GB/T 7714
周宇. 南海中南部上层湍流混合空间分布特征及参数化方案研究, Spatial variation and Parameterization scheme of Turbulent mixing in the upper layer of Central and southern South China Sea[D],2015.
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