Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries

The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): National Administrative Boundaries are derived from the land area grid to show the outlines of pixels (cells) that contain administrative Units in GRUMPv1 on a per-country/territory basis. They are derived from the pixels as polygons and thus have rectilinear boundaries at a large scale. The polygons that outline the countries and territories are not official representations; rather they represent the area covered by the statistical data as provided. This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT).

全球城乡映射项目，版本1（GRUMPv1）：国家行政边界根据土地面积网格推导，以展示包含GRUMPv1中各行政单元的像素（单元格）轮廓，按国家/地区进行划分。这些边界由像素推导为多边形，因此在较大比例尺上具有直线边界。描绘国家和地区的多边形并非官方表示，而是代表所提供统计数据覆盖的区域。此数据集由哥伦比亚大学国际地球科学信息网络中心（CIESIN）与国际食物政策研究所（IFPRI）、世界银行以及国际热带农业中心（CIAT）合作制作。