ABSTRACT

The possibility of using high resolution satellite data on a GIS platform for fast and low-cost map upgrading and digital cartographic database-building over remote areas in Africa is demonstrated. Using just one LANDSAT TM composite image, in combination with DEM (digital elevation model) and the author’s GPS data, a series of base and derived maps (hydrography, territorial boundaries, villages location, road network, relief) was obtained in a digitized, highly accurate, updated and upgradeable GIS-friendly format for the remote Kayamba Chiefdom in Congo. From these digital layer maps, a set of quantitative cartographic metrics (coordinates, distance, length, area, slope, aspect, etc.) was reliably deduced. All these fi ndings provide a solid base for further quantitative eco-climatic analysis or land/resources management and planning for the Chiefdom. Ground truth data are determinant in defi ning and/or identifying the surface features embedded in the satellite imagery. I recommend this analysis approach for those remote areas in developing countries where a full-scale ground survey is too costly or technologically too demanding.

Verwandte Artikel

• Thinking About GIS (0)
• The Use of Nigeria SAT-1 and GIS in Assesin the Mineral Potential of Rafin-Gabbas, North Central Nigeria (0)
• The study of urban growth impact in tourism area using remote sensing and GIS technique for north part of the UAE (0)
• The soil maps of Africa (0)
• The Satellites Data Use for Monitoring the Degradation Process of Natural Resources in Semi Arid Zones-Case of Southern Region of the Aurès (Algeria) (0)