宁金2018年0.2M分辨率真彩色UCXP WA航摄影像数据集

• 覆盖范围：江西省赣东南“宁金山地丘陵带”（宁都县、金溪县、广昌县、南丰县、南城县全域），总面积约4 800 km²。
• 获取时间：2018年9–11月（连续晴天窗口，云量<3 %，无雾霾）。
• 传感器：Vexcel UltraCam XP WA 广角大幅面数字航摄仪，真彩色RGB，无近红外波段；70 mm焦距，航高1 350 m 时实现0.20 m GSD。
• 分辨率：0.20 m GSD，满足1:2000成图与LOD2级三维建模要求。
• 数据量：单波段8-bit，共3波段；原始TIFF≈5.8 TB，LZW压缩后≈2.3 TB。
• 参考系：CGCS2000 / 3° Gauss-Kruger zone 39（EPSG:4548）；高程基准1985国家高程基准

• Coverage: The "Ningjin Mountain-Hilly Belt" in southeastern Jiangxi Province, covering the entire administrative regions of Ningdu County, Jinxi County, Guangchang County, Nanfeng County and Nancheng County, with a total area of approximately 4,800 km².
• Acquisition Time: September–November 2018 (continuous clear-sky acquisition windows, cloud cover < 3%, free of haze).
• Sensor: Vexcel UltraCam XP WA wide-format large-frame digital aerial camera, true-color RGB imagery without near-infrared band; with a 70 mm focal length, delivering a ground sampling distance (GSD) of 0.20 m at an aerial altitude of 1,350 m.
• Resolution: 0.20 m GSD, satisfying the requirements for 1:2000 scale mapping and LOD2-level 3D modeling.
• Data Volume: Single-band 8-bit quantization, with 3 spectral bands in total; the original TIFF datasets total approximately 5.8 TB, and the size is reduced to about 2.3 TB after LZW compression.
• Coordinate Reference System: CGCS2000 / 3° Gauss-Kruger zone 39 (EPSG:4548); vertical datum: 1985 National Elevation Datum.

搜集汇总

背景与挑战

背景概述

该数据集是2018年获取的江西省赣东南宁金山地丘陵带约4800 km²的高分辨率航摄影像，分辨率为0.20米，使用真彩色RGB传感器，适用于地形图更新、城镇规划、生态监测和数字孪生等多种应用场景，具有覆盖广、精度高的特点。