期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2002
卷号：XXXIV Part 4
出版社：Copernicus Publications
摘要：In economic, social and urban studies, areal units under analysis frequently differ from areal units over which data are compiled. Most area-based analyses, hence face an unavoidable problem o f transferring data across different zonal systems, for example, statistical population data requiring spatial transformation. This is so called areal interpolation. In this paper, an areal interpolation with population real distribution is pointed out based on traditional areal interpolation by partitioning the zone into 'occupied' and 'unoccupied' classes. We deduce the new formula. A population density algorithm is discussed based on recursion as well. (1) We partition the study region into two subregions—a sparsely populated region and a more densely populated one. (2) Through estimation the population density of sparsely populated region, we can compute the population density o f more densely populated region. (3) The more densely populated region is divided into two subregio ns-- a new sparsely p opulated region and a new more densely populated one if necessary. This process can take many iterations until the more real population distributio n model is obtained
关键词：areal interpolation; population density; recursion
