GRID3 Chad Settlement Extents Version 01, Alpha

NOTE: This initial version of the Chad settlement extents has been superseded by the final version, "GRID3 Chad Settlement Extents, Version 01", now available here: https://doi.org/10.7916/d8-9ha5-vj34 The database constitutes a comprehensive set of settlement polygons nationwide. It is in geodatabase format and consists of three feature classes for built up areas (BUA), small settlement areas (SSA), and hamlets (hamlets). This work has been undertaken as part of the Geo-referenced Infrastructure and Demographic Data for Development (GRID3) initiative in Chad. GRID3 works with countries to generate, validate and use geospatial data on population, settlements, infrastructure, and subnational boundaries. For more information, see https://grid3.org/ Keywords: built up areas, BUA, small settlement areas, SSA, hamlets, settlement aggregation, settlement extent, CIESIN, GRID3, Novel-T Name 1