World Regions

World Regions represents the boundaries for 25 commonly recognized world regions. This layer is best viewed out beyond a maximum scale (zoomed in) of 1:5,000,000. The sources of this dataset are Esri, Global Mapping International (GMI), and U.S. Central Intelligence Agency (The World Factbook). It is updated as country boundaries coincident to regional boundaries change. To download the data for this layer as a layer package for use in ArcGIS desktop applications, refer to World Regions.世界区域（World Regions）数据集用于表示25个国际通用世界区域的边界范围。该图层的最佳显示比例尺需大于1:5,000,000（即放大至该比例以上）。本数据集的数据源包括Esri、国际全球制图组织（Global Mapping International，简称GMI）以及美国中央情报局（《世界概况》，The World Factbook）。当与区域边界重合的国家边界发生变更时，本数据集将同步更新。若需下载该图层的数据包以用于ArcGIS桌面端应用程序，请参阅「世界区域（World Regions）」数据集。