UNI-CEN Boundaries (CBF-Original Shorelines) - Census Tract (CT) - 1981 - File Geodatabase format (NAD83 CSRS / EPSG:3348)

The UNI-CEN Digital Boundary File Series facilitates the mapping of UNI-CEN census data tables. Boundaries are provided in multiple formats for different use cases: Esri Shapefile (SHP), geoJson, and File Geodatabase (FGDB). SHP and FGDB files are provided in two projections: NAD83 CSRS for print cartography and WGS84 for web applications. The geoJson version is provided in WGS84 only. The UNI-CEN Standardized Census Data Tables are readily merged to these boundary files. For more information about file sources, the methods used to create them, and how to use them, consult the documentation at https://borealisdata.ca/dataverse/unicen_docs. For more information about the project, visit https://observatory.uwo.ca/unicen.

UNI-CEN数字化边界文件系列（UNI-CEN Digital Boundary File Series）可辅助完成UNI-CEN人口普查数据表的地理匹配与制图工作。针对不同应用场景，该系列提供多种格式的边界文件：Esri形状文件（Esri Shapefile，SHP）、地理JSON（geoJson）以及文件地理数据库（File Geodatabase，FGDB）。SHP与FGDB格式文件提供两种坐标系投影：用于印刷制图的NAD83加拿大参考坐标系统（NAD83 CSRS），以及用于网络应用的世界大地测量系统1984（WGS84）；geoJson格式版本仅支持WGS84坐标系。UNI-CEN标准化人口普查数据表可便捷地与上述边界文件完成合并匹配。若需了解文件来源、制作方法及使用方式等更多细节，请查阅如下文档：https://borealisdata.ca/dataverse/unicen_docs。若需了解该项目的更多详情，请访问：https://observatory.uwo.ca/unicen。