Vertical mixing in oceans is an essential component of the dynamics of ocean circulation, including meridional circulation. Nevertheless, various aspects of mixing, particularly in conjunction with global ocean energetics, remain debatable. One of the biggest reasons is the lack of observational facts. With the recent expansion of global vertical-mixing observations, attempts have been made to estimate the ocean state using vertical-mixing observation data to better understand the role of mixing in oceanography. In this review, we discuss the current status of the ocean state estimation and future synthesis of vertically mixing observation data into the oceanic basin-scale state estimation, including progress of data assimilation studies using numerical models. These will contribute to the construction of the future line of observation, model, and data synthesis studies along which the issues on ocean mixing can be consistently resolved.

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海洋混合观测合成的海洋状态估计

海洋中的垂直混合是海洋环流动力学的重要组成部分，包括经向环流。然而，混合的各个方面，特别是与全球海洋能量学结合，仍然存在争议。最大的原因之一是缺乏观察事实。随着最近全球垂直混合观测的扩展，已经尝试使用垂直混合观测数据来估计海洋状态，以更好地了解混合在海洋学中的作用。在这篇综述中，我们讨论了海洋状态估计的现状和未来将垂直混合观测数据合成到海盆尺度状态估计中，包括使用数值模型进行数据同化研究的进展。这些将有助于构建未来的观测线、模型、