黄河上游河流矢量图

黄河是我国第二长河，黄河泥沙问题引起全世界人民的关注。本数据根据全国1:400万河流矢量图为底图，利用黄河上游流域边界裁剪而成。河流矢量图是利用地形图提取流域边界的一个关键要素，同时也是做洪水演进和泥沙演进的关键要素。

本图以ArcGIS,.shp文件存储，包括自黄河源区到头道拐的干流和支流矢量图。河流矢量图是利用地形图提取流域边界的一个关键要素，同时也是做洪水演变和泥沙演进的关键要素。

The Yellow River is the second longest river in China, and its sediment-related issues have garnered global attention. This dataset is generated by clipping the national 1:4,000,000 river vector base map using the boundary of the upper Yellow River basin. River vector maps are key elements for extracting basin boundaries from topographic maps, and also serve as critical inputs for flood routing and sediment routing studies.

This dataset is stored in ArcGIS .shp format, including vector maps of both main streams and tributaries from the source region of the Yellow River to Toudaoguai. As noted, river vector maps are key components for extracting basin boundaries from topographic maps, and are also essential for flood evolution and sediment evolution research.

搜集汇总

背景与挑战

背景概述

该数据集是黄河上游河流矢量图，基于1:400万比例尺底图裁剪而成，以ArcGIS .shp格式存储，涵盖黄河源区到头道拐的干流和支流。它主要用于流域边界提取、洪水演进和泥沙演进分析，属于基础地理数据，可通过在线申请完全共享获取。