2023 Contours - 1 Ft

Polyline dataset that display 1 foot contour interval for the City of Winchester. Contours were generated during the 2023 aerial photography project that was contracted by Eagle View. Certified orthomosaics, LiDAR and various LiDAR derivatives (DEM, point cloud, and contours) were created as a result of the project. “Layer” field will include values to allow users to further filter contour intervals (Please see below). Elevation value for each line are within a string and integer data type field. Caputure Date: March 2023 INDEX: 10 ft major contour lines (multiples of 10; e.g., 600, 610, 620) INTER: 2 ft intermediate contour lines (even multiples not divisible by 10; e.g., 602, 604, 606) MINOR: 1 ft supplemental contour lines (odd elevations; e.g., 611, 613, 615)本数据集为温彻斯特市（City of Winchester）适配1英尺等高距的折线要素数据集。本数据集的等高线由鹰景（Eagle View）承接的2023年航空摄影项目生成。本项目同步产出经认证的正射影像图（orthomosaics）、激光雷达（LiDAR）及其多种衍生产品，涵盖数字高程模型（DEM）、点云与等高线。"图层（Layer）"字段内置分类标识，支持用户按等高距进一步筛选要素（详见下文）。各折线的高程值存储于兼具字符串与整数数据类型的字段内。采集日期：2023年3月。主等高线（INDEX）：10英尺基准等高线，高程值为10的整倍数，示例包括600、610、620。间曲线（INTER）：2英尺辅助等高线，高程值为不能被10整除的偶数，示例包括602、604、606。补绘等高线（MINOR）：1英尺补充等高线，高程值为奇数，示例包括611、613、615。