Indiapolis

Following the Geopolis guidelines, the dataset provides the shapefile of all physical agglomerates of over 5,000 inhabitants as urban in India in 2010 with their population data of 2001 and 2011 – an agglomerate being considered as a contiguous built-up area. The objective of the e-Geopolis project is to promote the use of a single, globally applicable technical definition of the term. This approach is based on: a simple morphological criterion across space and time: (the contiguity of built-up areas with a maximum of 200 meters separating constructions), and a single threshold (10,000 inhabitants) applied uniformly across the board, even when the national definition uses other criteria 6,485 morphological agglomerate’s polygons with at least 10,000 inhabitants in 2001 considered urban are delineated as well as smaller morphological agglomerates above 5,000 inhabitants in 2001. Geopolis definition eliminates the technical or methodological biases of the official definition, linked in the case of India to the problem of the spread of an agglomeration over different administrative units either officially rural or urban and/or crossing State borders. Having carried out the necessary processes of standardization on a diachronic set of data, verification on the ground and digitalization of each morphological configuration, we can now offer a scientifically valid view of India’s urban continuum. These steps have eliminated most (if not all) of the distortions resulting from an unquestioning dependence on official figures, besides attempting a classical analysis of demographic trends. Delineation of agglomerates has been made using GoogleEarth imagery. see: Denis, E., & Marius-Gnanou, K. (2010). Toward a better appraisal of urbanization in India. A fresh look at the landscape of morphological agglomerates. Cybergeo: European Journal of Geography.遵循Geopolis指南，本数据集提供了2010年印度所有人口超过5000的实体城镇集聚区（agglomerate）的形状文件（shapefile），并附带其2001年与2011年的人口数据——此处城镇集聚区被定义为连片建成区域。 e-Geopolis项目的目标是推广该术语统一且适用于全球的技术定义，该定义基于以下两项判定标准： 其一为跨时空的简易形态学标准：建成区域内建筑间距不超过200米即视为连片； 其二为统一适用的单一人口阈值（10000人口），即便印度官方定义采用其他判定准则。 本数据集共划定6485个2001年人口不少于10000的城镇集聚区形态多边形（纳入城镇范畴），同时涵盖2001年人口超过5000的小型城镇集聚区形态多边形。 Geopolis定义消除了官方定义存在的技术与方法学偏误——以印度为例，官方定义的偏误源于城镇集聚区跨越多个行政单元（无论是官方划定的农村或城镇区域），甚至跨越邦界。通过对历时数据集开展标准化处理、实地验证以及对各类形态构型进行数字化工作，我们如今得以提供科学严谨的印度城镇连绵区域图景。上述流程不仅消除了因盲目采信官方数据所导致的绝大多数（甚至全部）失真问题，同时还开展了经典的人口趋势分析。 城镇集聚区的划定工作依托Google Earth影像完成。 详见：Denis, E. 与 Marius-Gnanou, K.（2010）。《印度城市化水平的精准评估：重新审视城镇集聚区形态格局》。Cybergeo: European Journal of Geography