1940-2021年全球海洋层结逐月格点数据集

海洋上层平均密度较小、深层密度较大，形成了较为稳定的垂向热力结构。海洋的这种较为稳定的层结结构会抑制垂向混合过程，进而影响热量、碳、溶解氧、营养盐等物质和能量的垂向输送。海洋层结是影响全球气候的一个关键因子，其变化对海洋环流和海洋生态系统有重要影响。

这里我们提供IAP全球海洋层结格点数据—1°产品。该层结数据利用自主发展的海洋温度、盐度网格化数据产品计算而来，在一些关键技术问题如计算垂向梯度过程中的垂向分辨率不足方面进行了改进。水平分辨率为1°×1°，垂向覆盖从表层到2000米（41层），时间范围从1940年至今（月平均）。

The upper ocean has lower average density, while the deep ocean exhibits higher density, resulting in a relatively stable vertical thermal structure. This stable ocean stratification suppresses vertical mixing processes, thereby impacting the vertical transport of heat, carbon, dissolved oxygen, nutrients, and other substances and energy. Ocean stratification is a critical factor influencing global climate, and its variations exert significant effects on ocean circulation and marine ecosystems. Here we introduce the IAP Global Ocean Stratification Gridded Data – 1° Product. This stratification dataset is computed using independently developed gridded ocean temperature and salinity data products, with improvements addressing key technical challenges such as insufficient vertical resolution during vertical gradient calculations. The dataset has a horizontal resolution of 1°×1°, a vertical coverage spanning from the surface to 2000 meters (41 layers), and a temporal range from 1940 to the present (monthly averages).