Regions used by the Australian Antarctic Data Centre

The regions dataset holds polygon data. The polygons are overlapping and suitable for use at multiple scales. The data include regions as large as the Southern Ocean, Australia's limit of the Southern Ocean, and AAT West. It also includes small areas such as Mawson Coast, Rauer Group and Bunger Hills. Extents for each region are defined in the attribute table.\r\n\r\nThe data were captured so that online applications, such as the Map Catalogue and Data Navigator, could use region information consistently.\r\n\r\nThe data are stored in geographicals, i.e. unprojected. The data include an attribute PROJECTION which stores the suggested projection for a region in code. The code represents projections used by Oracle.

本区域数据集包含多边形（polygon）数据。该类多边形存在重叠特性，且适配多尺度应用场景。数据涵盖的区域跨度广泛，既包含南大洋（Southern Ocean）、澳大利亚南大洋界线及西澳大利亚南极领地（AAT West）等大型区域，也涵盖莫森海岸（Mawson Coast）、劳尔群岛（Rauer Group）与邦杰丘陵（Bunger Hills）等小型区域。各区域的空间范围均在属性表中予以明确定义。
本数据集的采集旨在确保地图目录（Map Catalogue）与数据导航器（Data Navigator）等在线应用能够统一调用区域相关信息。
数据以地理坐标系（即未投影坐标系）格式存储。数据集包含PROJECTION属性字段，该字段以代码形式存储各区域推荐使用的投影信息，此处所用代码对应Oracle系统支持的投影格式。