全球海洋Argo网格数据集制作与可靠性验证

Production of Global Ocean Argo Gridded Dataset and Its Reliability Verification

摘要:

利用改进的 Barnes 逐步订正法,结合一个混合层模型,构建完成了一个新版(2004-2017 年) 全球海洋(79. 5°S~79. 5°N,180°W~180°E)Argo 三维网格温、盐度资料集及衍生数据产品。 与旧版网格数据集相比,新版数据集采用一阶近似(表层温、盐度通过混合层内温、盐度线性拟合得出)的混合层模型,改善了资料集在表层的准确性;与 WOA13 资料集、同类 Argo 资料集和锚碇浮标观测资料的可靠性检验结果表明,新版全球海洋 Argo 网格数据集提供的资料是可信的,其质量也是有充分保证的。

Abstract:

Based on an improved Barnes successive correction method, combined with a mixed layer model, a new version of the global ocean (79. 5°S~ 79. 5°N,180°W~ 180°E) Argo 3D gridded temperature / salinity dataset (2004-2017) with its derived products are developed. In contrast to the old version of the dataset, the mixed layer model of first-order approximation is adopted, and improves the accuracy of the dataset at the surface. The new version of the global Argo gridded dataset is verified to be credita- ble through a reliability check by means of WOA13, the other Argo datasets and moored buoy observations.