FSTopo Airfield Line
收藏国家林业和草原科学数据中心2023-02-09 更新2024-03-06 收录
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资源简介：
FSTopo_Airfield_LN portrays Heliports, Seaplane Bases, Landing Strips, Airport Outlines, etc. This feature class was derived from the Cartographic Feature File (CFF). Within the FSTopo database, features are represented as lines, points, or polygons, with descriptive subtype attribute codes attached to describe the cartographic symbology characteristics of features. Annotation features are represented as stand-alone map text collected relative to the scale of the topographic quadrangle. The FSTopo database was originally populated with Cartographic Feature File (CFF) data which was digitized from either the Primary Base Series (PBS) quadrangles or U.S. Geological Survey (USGS) topographic map series quadrangles.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-09
