全球海洋再分析产品的研究现状

Current Status of Global Ocean Reanalysis Datasets

随着海洋观测资料的积累和日益丰富,以及海洋数值模式与数据同化方法的不断发展,利用同化系统将海洋数值模式和历史观测资料结合起来,对重构海洋过去的演变以形成再分析资料的作用和意义越来越显著。再分析产品为人们深入了解多时空尺度的海洋运动和探究海洋在气候变化中的作用提供了不可替代的资料基础。受海洋模式与数据同化方法的发展水平和庞大的计算资源需求等方面的限制,全球海洋再分析产品主要由海洋科技强国制作与发布。就当前国内外一些主要的全球海洋再分析计划及其产品进行分析,对各产品的特点及应用中存在的一些问题进行介绍,最后对全球海洋再分析产品未来的发展趋势进行了展望和讨论。

With the development of the ocean satellite remote sensing technology, the reanalysis of past oceanic observations using modern data assimilation technique and the restructuring of the long-term and consistent gridded data products have made great progress. Such datasets provide us with the most primary research tools to identify the state and evolution of ocean, and understand the role of ocean in climate change and variability at different spatial-temporal scales. In this paper, the current research status in the global reanalysis datasets including some of international global.ocean reanalysis projects and the corresponding reanalyzed products were systematically reviewed. In addition, the present status of the domestic research of ocean reanalysis datasets was briefly introduced. The validation of the reanalysis datasets and some quality problems represented by the reanalyzed products, and the Ocean Reanalyses Intercomparison Project were systematically reviewed. Moreover, the prospects of the studies of oceanic reanalysis in the future were also discussed in this paper.