遇见数据集

Contour Lines 2022 2ft

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ArcGIS Hub2025-12-02 更新2026-08-13 收录
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These 2-foot topographic contours were generated by the City of Charlottesville using the 2022 statewide DEM provided through the Virginia Base Mapping Program (VBMP / VGIN). The dataset provides an updated representation of local terrain conditions suitable for planning, engineering review, stormwater analysis, and general mapping. Contours were derived directly from the 2022 LiDAR-based DEM at 1-meter resolution, ensuring improved accuracy over older legacy contour sets.

本数据集的2英尺地形等高线由夏洛茨维尔市基于弗吉尼亚州基础测绘项目(Virginia Base Mapping Program,VBMP / VGIN)提供的2022年全州范围数字高程模型(Digital Elevation Model,DEM)生成。该数据集提供了更新后的本地地形状况表征,适用于规划编制、工程审查、雨水径流分析及通用制图等工作。等高线直接提取自分辨率为1米的2022年基于激光雷达(Light Detection and Ranging,LiDAR)的数字高程模型,相较于老旧的传统等高线数据集,其精度实现了显著提升。

创建时间:
2025-12-01
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