地理信息 - 按地理标识符进行空间参考

[中文适用范围]： 本文档定义了基于地理标识符的空间参考的概念架构。 它使用地理标识符建立空间参考的通用模型，并定义空间参考系统的组件。 它还指定了地名词典的概念方案。 ISO 19111 中解决了通过坐标进行空间参考的问题。 但是，本文档中包含了用于记录补充坐标参考的机制。 本文档使数据生产者能够使用地理标识符定义空间参考系统，并帮助用户理解数据集中使用的空间参考。 它使地名词典能够以一致的方式构建，并支持地理信息领域其他标准的开发。 本文件适用于数字地理数据，其原则可以扩展到其他形式的地理数据，例如地图、图表和文本文档。 [外文原描述]： This document defines the conceptual schema for spatial references based on geographic identifiers. It establishes a general model for spatial referencing using geographic identifiers and defines the components of a spatial reference system. It also specifies a conceptual scheme for a gazetteer. Spatial referencing by coordinates is addressed in ISO 19111. However, a mechanism for recording complementary coordinate references is included in this document. This document enables producers of data to define spatial reference systems using geographic identifiers and assists users in understanding the spatial references used in datasets. It enables gazetteers to be constructed in a consistent manner and supports the development of other standards in the field of geographic information. This document is applicable to digital geographic data, and its principles may be extended to other forms of geographic data such as maps, charts and textual documents.