Rivers of South Africa 1:500 000

The coverage is a South African surface drainage network for GIS, originally based on a 1994 1:500 000 rivers coverage from the Chief Directorate of National Geo-spatial Information. This version is made available `as is` for the convenience of those who need a medium-scale river coverage for display or modelling: the developers would welcome any comments relating to errors or areas for improvement.本数据集为面向地理信息系统（Geographic Information System，GIS）的南非地表水系网络数据图层，最初基于南非国家地理空间信息总局1994年发布的1:50万比例尺河流数据图层。本版本按现状提供，旨在为需要使用该中比例尺河流数据图层进行可视化展示或建模的用户提供便利。数据集开发团队欢迎各界就数据错误或改进方向提出相关意见。