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首页> 外文期刊>Marine Geodesy >The Global Distribution of Diapycnal Mixing and Mixing Coefficient Tensor in the Upper 2000m Ocean from Argo Observations
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The Global Distribution of Diapycnal Mixing and Mixing Coefficient Tensor in the Upper 2000m Ocean from Argo Observations

机译：从Argo观测看2000m海洋上斜面混合混合系数张量的全球分布。

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摘要

Diapycnal Mixing (DM) within the upper 2000m of the global ocean is calculated by a fine-scale parameterization using the multiyear-mean density gridded product that created by employing all the Argo float observations to date through the recently published equation of seawater TEOS-10. The geographic distribution of Argo-derived DM derived in this study is spatial-dependent and varies with latitude and depth. The magnitude and pattern of DM is favorably validated by comparisons with previous studies. Furthermore, the mixing coefficient tensor K is calculated and analyzed. Components of the tensor fitting for the geopotential coordinate models are also presented. It is found that the tensor components in horizontal direction, K_(xx) and K_(yy), have similar magnitude and distribution pattern. In the vertical, K_(zz) is enhanced over regions with rough topography and strong wind (e.g., Westerly region), suggesting agreement with previous estimates. This work presents a scheme to estimate the DM and mixing coefficient tensor using A rgo observations, and offers a useful A rgo-based mixing product for the purpose of promoting the study and modeling of ocean circulation and other processes.
机译：通过使用多年平均密度网格产品通过精细尺度参数化来计算全球海洋上部2000m内的斜面混合（DM），该网格产品使用最新发布的海水TEOS-10公式利用迄今为止的所有Argo浮标观测值创建。在这项研究中得出的Argo衍生DM的地理分布是空间依赖性的，并随纬度和深度而变化。通过与先前的研究进行比较，可以很好地验证DM的大小和模式。此外，计算和分析混合系数张量K。还介绍了用于地势坐标模型的张量拟合的组件。发现水平方向上的张量分量K_（xx）和K_（yy）具有相似的大小和分布模式。在垂直方向，K_（zz）会在地形崎wind和强风的区域（例如，西风地区）增强，这表明它与以前的估计一致。这项工作提出了使用Argo观测值估计DM和混合系数张量的方案，并提供了有用的基于Argo的混合产品，以促进海洋环流和其他过程的研究和建模。

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  • 来源
    《Marine Geodesy》 |2014年第3期|337-353|共17页
  • 作者

    ZENGAN DENG; TING YU; SUIXIANG SHI; JIYE JIN; KEJIAN WU;

  • 作者单位

    Key Laboratory of Digital Ocean, Tianjin, China,National Marine Data and Information Service, No.93, Liuwei Road, Hedong, Tianjin, 300171, China;

    National Marine Data and Information Service, No.93, Liuwei Road, Hedong, Tianjin, 300171, China;

    ,Ocean University of China, Qingdao, China;

    Key Laboratory of Digital Ocean, Tianjin, China,National Marine Data and Information Service, Tianjin, China;

    Key Laboratory of Digital Ocean, Tianjin, China,National Marine Data and Information Service, Tianjin, China;

    Ocean University of China, Qingdao, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Diapycnal mixing; Argo; mixing coefficient tensor;

    机译：滴定混合;Argo;混合系数张量;

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