GIS Layer: National Sea Surface Currents in the Australian Region

ESRI grid and shape files showing magnitude and direction of mean sea surface currents derived from annual and semi-annual temperature and salinity cycles stored in CARS2000. CARS is a set of seasonal maps of temperature, salinity, dissolved oxygen, nitrate, phosphate and silicate, generated using Loess mapping from all available oceanographic data in the region. It covers the region 100-200E, 50-0S, on a 0.5 degree grid, and on 56 standard depth levels. Higher resolution versions are also available for the Australian continental shelf. The data was obtained from the World Ocean Atlas 98 and CSIRO Marine and NIWA archives. It was designed to improve on the Levitus WOA98 Atlas, in the Australian region. These grids have been produced by CSIRO for the National Oceans Office, as part of an ongoing commitment to natural resource planning and management through the 'National Marine Bioregionalisation' project. Variations in onscreen colour representation or printed reproduction may affect perception of the contained data.本数据集为存储于CARS2000数据集内、由年际与半年际温度及盐度循环推导得到的平均海表流幅值与流向的ESRI网格（ESRI grid）与形状文件（shape files）。CARS数据集是一套涵盖温度、盐度、溶解氧、硝酸盐、磷酸盐与硅酸盐的季节分布图集，通过对研究区域内所有可用海洋学数据采用Loess制图（Loess mapping）法生成。该数据集覆盖东经100°至200°、南纬50°至0°的海域，采用0.5°网格分辨率，包含56个标准深度层。针对澳大利亚大陆架区域，还提供了更高分辨率的数据集版本。本数据源自《世界海洋图集98》（World Ocean Atlas 98）以及CSIRO海洋档案库与NIWA档案库。本数据集旨在针对澳大利亚区域优化莱维图斯《世界海洋图集98》（Levitus WOA98 Atlas）的相关成果。上述网格数据集由CSIRO为国家海洋办公室制作，作为其通过‘国家海洋生物区划（National Marine Bioregionalisation）’项目持续推进自然资源规划与管理工作的一部分。屏幕色彩显示差异或印刷复刻效果变化可能会影响对数据集所含数据的感知。