Definition: Areal interpolation
UN - Geographic Information Systems
The transfer of an attribute from one set of reporting zones to another, incompatible, set of zones; for instance, the estimation of population totals for ecological regions based on a GIS data set of population by district.
United Nations, "Handbook on Geospatial Infrastructure in Support of Census Activities", Department of Economic and Social Affairs, Statistics Division, Studies in Methods, Series F No. 103, New York, 2009