中国1:100万主要河流数据集(2002年)
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该数据集为中国2002年1:100万主要河流数据,每条河流均为一完整的空间要素,属性信息唯一,包含了河流名称及其对应的河流代码。在1:100万基础地理数据的基础上,按全国山脉水系图整理,参照河流走向走势,对矢量数据进行加工整理。将基础地理数据中破碎的水系河流在空间上拼接完整,每条河流在空间上为一单独要素。 数据内容包含了一个shp矢量文件,“100万水系.shp”。
This dataset contains 1:1,000,000 scale major river data of China collected in 2002. Each river is a complete spatial feature with unique attribute information, including the river name and its corresponding river code. The vector data was processed and organized based on the 1:1,000,000 scale basic geographic data, following the national mountain and water system maps and referencing the flow direction and course of rivers. The fragmented river water systems in the original basic geographic data were spatially merged to form complete features, with each river existing as a standalone spatial entity. The dataset includes one shapefile vector file named "1_1000000_water_systems.shp".




