Taking Advantage of the Improved Availability of Census Data: A First Look at the Gridded Population of the World, Version 4
Taking Advantage of the Improved Availability of Census Data: A First Look at the Gridded Population of the World, Version 4
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DOI：
10.1080/23754931.2015.1014272
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发表时间：
2015-07
影响因子：
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通讯作者：
E. Doxsey-Whitfield;K. Macmanus;Susana B. Adamo;L. Pistolesi;J. Squires;O. Borkovska;S. Baptista
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文献类型：
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作者：
E. Doxsey-Whitfield;K. Macmanus;Susana B. Adamo;L. Pistolesi;J. Squires;O. Borkovska;S. Baptista
全球网格人口数据越来越多地应用于广泛的领域。本文介绍了世界网格人口 (GPWv4) 数据集第四版中所做的改进。 GPWv4 是一个最小建模的数据集，它使用均匀分布将人口普查数据从其本机输入单元分解到 30 角秒的全球网格中。由于 2010 年一轮人口普查中可免费获取的人口普查数据有所增加，87 个国家的行政级别比上一版本更高，美国以外的人口普查单位总数增加了五倍多。由此产生的单位大小的减小极大地提高了数据集的准确性。此外，版本 4 还进行了扩展，包括年龄、性别和城乡状况的网格。获取高分辨率人口普查数据和匹配人口普查地理仍然是改进全球网格人口数据集的首要任务。
Global gridded population data are increasingly being applied to a broad range of fields. This article presents improvements made in the fourth version of the Gridded Population of the World (GPWv4) data set. GPWv4 is a minimally modeled data set that uses uniform distribution to disaggregate census data from their native input units into a thirty arc-second global grid. Due to an increase in freely accessible census data from the 2010 round of censuses, eighty-seven countries are gridded at a higher administrative level than in the previous version, with a more than fivefold increase in the total number of census units outside of the United States. The resultant decrease in unit size has greatly improved the data set accuracy. Additionally, version 4 has expanded to include grids of age, sex, and urban–rural status. Obtaining high-resolution census data and matching census geography remains a priority for improving global gridded population data sets.