中国1：100万数字地貌数据（H-48 成都）

中国数字地貌数据库包括三个层次的数据：（1）中国1:400万形态地貌图（李炳元，1994）和中国1:400万构造地貌图（陈志明，1994）数字栅格图（原始纸质图扫描）、矢量数据（albers投影）、数据说明文档，总数量量达2G。（2）中国1:100万15幅老地貌图（20世纪80年代）的数字栅格图（原始纸质图扫描）、矢量数据（ThansverseMercator投影）和数据说明文档，总数据量达2G。（3）基于遥感影像、地质图、基础地理底图、老地貌图、SRTM-DEM等多源数据解译、更新、集成的全国64幅陆地无缝拼接的地貌数据，以100万标准分幅方式存储，ThansverseMercator投影，数据量达2G以上。以及中国1:100万数字地貌分类体系及中国数字地貌遥感解译技术规程等说明文档。

The China Digital Geomorphology Database encompasses three tiers of datasets:
1. The 1:4,000,000-scale morphological geomorphic map of China (Li Bingyuan, 1994) and 1:4,000,000-scale tectonic geomorphic map of China (Chen Zhiming, 1994). The supporting datasets include digital raster images scanned from original paper maps, vector data in Albers projection, and data documentation, with a total data volume of 2 GB.
2. Fifteen pieces of 1:1,000,000-scale vintage geomorphic maps from the 1980s of China. The corresponding datasets consist of digital raster images scanned from original paper maps, vector data in Transverse Mercator projection, and data documentation, with a total data volume of 2 GB.
3. Nationwide 64-sheet seamless land geomorphic data, which was interpreted, updated and integrated from multi-source data including remote sensing imagery, geological maps, basic geographic base maps, vintage geomorphic maps and SRTM-DEM. The data is stored in the standard 1:1,000,000 sheet division format with Transverse Mercator projection, and the total data volume exceeds 2 GB. In addition, supporting documents such as the 1:1,000,000-scale China Digital Geomorphology Classification System and the Technical Specifications for Remote Sensing Interpretation of China Digital Geomorphology are also provided.

搜集汇总

背景与挑战

背景概述

该数据集是中国1：100万数字地貌数据的一部分，覆盖成都地区，基于遥感影像等多源数据解译、更新和集成，采用Thansverse Mercator投影，数据量28.32 MB。数据集主要用于地貌学研究，提供了详细的地貌分类和形态结构信息。