High resolution global gridded data for use in population studies.
High resolution global gridded data for use in population studies.
复制标题
高分辨率全球网格数据用于人群研究。
DOI：
10.1038/sdata.2017.1
复制
发表时间：
2017-01-31
期刊：
影响因子：
9.8
通讯作者：
Tatem AJ
中科院分区：
文献类型：
--
作者：
Lloyd CT;Sorichetta A;Tatem AJ
近年来，公开可用的卫星和其他地理空间数据层大幅增长，这些数据层代表了与精细空间尺度上的全球人口测绘有关的一系列指标。这些数据的规格差异很大，因此，数据层的协调是构建准确描述人口分布的详细和当代空间数据集的先决条件。这些数据集对于衡量人口增长的影响、监测变化和规划干预措施至关重要。为此，WorldPop项目制作了一个开放获取的3和30角秒分辨率网格数据档案。四个平铺栅格数据集构成了档案的基础：(I)裁剪到全球行政区域(GADM)海岸线的取景器全景地形；(Ii)匹配的ISO 3166国家识别网格；(Iii)国家区域；(Iv)坡度层。其他层面包括交通网络、土地覆盖、夜间照明、降雨量、到主要城市的旅行时间和水道。这里描述了数据集和生产方法。该档案可从WorldPop数据仓库和WorldPop Project网站下载。
Recent years have seen substantial growth in openly available satellite and other geospatial data layers, which represent a range of metrics relevant to global human population mapping at fine spatial scales. The specifications of such data differ widely and therefore the harmonisation of data layers is a prerequisite to constructing detailed and contemporary spatial datasets which accurately describe population distributions. Such datasets are vital to measure impacts of population growth, monitor change, and plan interventions. To this end the WorldPop Project has produced an open access archive of 3 and 30 arc-second resolution gridded data. Four tiled raster datasets form the basis of the archive: (i) Viewfinder Panoramas topography clipped to Global ADMinistrative area (GADM) coastlines; (ii) a matching ISO 3166 country identification grid; (iii) country area; (iv) and slope layer. Further layers include transport networks, landcover, nightlights, precipitation, travel time to major cities, and waterways. Datasets and production methodology are here described. The archive can be downloaded both from the WorldPop Dataverse Repository and the WorldPop Project website.