北太平洋中层水模拟的改进

发布时间：2018-03-11 21:07

本文选题：垂直混合　切入点：惯性内波　出处：《中国海洋大学学报(自然科学版)》2016年10期 　论文类型：期刊论文

【摘要】：通过对北太平洋中层水模拟和分析的3种结果的比较:在稀疏网格的LICOM全球大洋环流模式中使用Canuto等的湍流混合方案(简称T方案)并添加范植松等提出的惯性内波破碎混合方案(简称F方案),在LICOM模式中使用T方案,以及WOA09资料的分析结果,证明在添加F方案的情况下,北太平洋中层水的模拟有较明显的改进。惯性内波破碎混合可能是维持通风过程的重要机制之一,惯性频率风场的强迫作用可能是海洋内部混合的外部作用源。在WOA09资料的分析结果与数值模拟结果中均显示出北太平洋中层水的明显的季节变化,这意味着除表层水和模态水之外,北太平洋中层水在气候变化中扮演了重要的角色。模拟结果分析表明,为获得北太平洋中层水模拟的进一步改进,高分辨率的海洋模式和锋面与羽流的参数化方案是必要的。
[Abstract]:This paper compares three results of simulation and analysis of middle water in the North Pacific: using Canuto et al.'s turbulent mixing scheme (T scheme) in the LICOM global oceanic circulation model with sparse grid and adding inertia proposed by Fan Zisong et al. The mixed scheme of internal wave breakup (F scheme for short) uses T scheme in LICOM mode. The analysis results of WOA09 data show that the simulation of mid-level water in the North Pacific Ocean is obviously improved with the addition of F scheme. The inertial internal wave breaking and mixing may be one of the important mechanisms to maintain the ventilation process. The forcing effect of the inertial frequency wind field may be the external source of ocean internal mixing. The results of WOA09 data analysis and numerical simulation show that the seasonal variation of the mid-level water in the North Pacific Ocean is obvious. This means that, in addition to surface water and modal water, middle water in the North Pacific plays an important role in climate change. High resolution ocean models and parameterized schemes for frontal and plume are necessary.
【作者单位】：中国海洋大学海洋与大气学院;中国科学院大气物理研究所;莱西气象局;
【基金】：国家自然科学基金面上项目(41275084)资助~~
【分类号】：P731

【相似文献】