Impervious Surface 2018

The impervious surface layer contains polygon features generated from Digital Aerial Survey mapping line work. The layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classification and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit <a href="https://www.calgary.ca/cs/iis/mapping-products/digital-aerial-survey.html">Digital Aerial Survey</a>.

The file for download is 985 MB.

该不透水表层图层包含由数字航空测绘线工作生成的多边形要素。该图层要素代表卡尔加里市内所发现的各种不透水表层类型。这些要素根据数字航空测绘程序中使用的分类和规范，按照表层类型和描述进行分类。此外，针对每个不透水表层图层要素，还应用了更高层次的通用表层类型分类。欲了解更多关于其他数字航空测绘产品信息，请访问<a href="https://www.calgary.ca/cs/iis/mapping-products/digital-aerial-survey.html">数字航空测绘</a>。

该下载文件大小为985 MB。