Mansour, S., Martin, D.J. and Wright, J.
Problems of spatial linkage of a geo-referenced demographic and health survey (DHS) dataset to a population census: A case study of Egypt
Computers, Environment and Urban Systems (doi:10.1016/j.compenvurbsys.2011.04.001).
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GPS coordinates are increasingly available as spatial references on population surveys in the developing world, where high-resolution address and street mapping are absent. This potentially offers opportunities to enhance national census data by spatial linkage with survey sources. The paper explores the use of GPS-referenced Demographic and Health Survey (DHS) data in combination with census data in Egypt and identifies errors in coordinate referencing. The study develops a practical approach to the measurement of spatial uncertainty in this situation and assessment of its impact on data linkage. The analysis specifically addresses the analytical implications at three different spatial scales and is internationally relevant to the handling of GPS-referenced DHS data in GIS.
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