北极1:100万水系数据集(2014)
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北极1:100万水系数据集包括北极范围内不同等级的线型河流(Arctic_River)、多边形水系(Arctic_Water_poly)矢量空间数据及相关属性数据:名称(Name)、类型(Type)。 数据来自1:100万ADC_WorldMap全球数据集,数据经过拓扑,入库等数据质量检查,是全面、最新和无缝的地理数字数据。 世界地图坐标系统是经纬度,WGS84基准面,北极地区数据集为北极专用投影参数(North_Pole_Stereographic)。
The Arctic 1:1,000,000 Hydrological Dataset includes vector spatial data and associated attribute data for hierarchical linear rivers (Arctic_River) and polygonal water bodies (Arctic_Water_poly) within the Arctic region, with the attributes including Name and Type. This dataset is derived from the global 1:1,000,000 ADC_WorldMap dataset, and has undergone data quality checks including topology validation and database import procedures, making it a comprehensive, up-to-date and seamless geospatial digital dataset. The coordinate system of the global map uses geographic coordinates with the WGS84 datum, while the Arctic regional dataset employs the North Pole Stereographic projection parameters (North_Pole_Stereographic).




