Global Urban Polygons and Points Dataset (GUPPD), Version 1
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The Global Urban Polygons and Points Dataset (GUPPD), Version 1 is a global data set of 123,034 urban settlements with place names and population for the years 1975-2030 in five-year increments. The data set builds on and expands the European Commission, Joint Research Centre's (JRC) 2015 Global Human Settlement (GHS) Urban Centre Database (UCDB). The JRC Settlement Model (GHS-SMOD) data set includes a hierarchy of urban settlements, from urban centre (level 30), to dense urban cluster (level 23), to semi-dense urban cluster (level 22). The UCDB only includes level 30, whereas the GUPPDv1 adds levels 23 and 22, and uses open data sources to both check and validate the names that JRC assigned to its UCDB polygons and to label the newly added settlements. The methodology described in the documentation was able to consistently label a greater percentage of UCDB polygons than were previously labeled by JRC.
全球城市多边形与点数据集(Global Urban Polygons and Points Dataset,缩写GUPPD)版本1是一套覆盖1975年至2030年、以5年为时间间隔的全球数据集,包含123034个城镇聚落的地名与人口数据。本数据集基于并扩展了欧洲委员会联合研究中心(Joint Research Centre,缩写JRC)2015年发布的全球人类住区(Global Human Settlement,缩写GHS)城市中心数据库(Urban Centre Database,缩写UCDB)。JRC居民点模型(GHS-SMOD)数据集包含一套城镇聚落层级体系,从城市中心(等级30)、高密度城市集群(等级23)到半高密度城市集群(等级22)。原UCDB仅包含等级30的城镇聚落,而GUPPD版本1新增了等级23和22的层级,并利用开源数据源对JRC为UCDB多边形分配的名称进行核查与验证,同时为新增的城镇聚落添加标注。文档中所述的方法可稳定为占比更高的UCDB多边形添加标注,且标注比例高于JRC此前的工作。



