GHS Population Grids

The Global Human Settlement Layer (GHSL) Population Grids are a set of global raster datasets that provide the distribution of population, expressed as the number of people per cell. Residential population estimates between 1975 and 2020 in 5 years intervals and projections to 2025 and 2030 derived from CIESIN GPWv4.11 were disaggregated from census or administrative units to grid cells, informed by the distribution, density, and classification of built-up as mapped in the Global Human Settlement Layer (GHSL) global layer per corresponding epoch.This dataset is an update of the product released in 2022. Major improvements are the following: use of built-up volume maps (GHS-BUILT-V R2022A); use of more recent and detailed population estimates derived from GPWv4.11 integrating both UN World Population Prospects 2022 country population data and World Urbanisation Prospects 2018 data on Cities; revision of GPWv4.11 population growthrates by convergence to upper administrative level growthrates; systematic improvement of census coastlines; systematic revision of census units declared as unpopulated; integration of non-residential built-up volume information (GHS-BUILT-V_NRES R2023A); spatial resolution of 100m Mollweide (and 3 arcseconds in WGS84); projections to 2030. The GHSL population grids are produced by the Joint Research Centre (JRC) of the European Commission.

搜集汇总

背景与挑战

背景概述

GHS Population Grids是一个全球人口分布栅格数据集，提供1975年至2020年每5年间隔的人口估计及2025、2030年预测，以每单元格人数表示。该数据集基于GHSL建筑层进行空间分配，更新版本整合了最新人口数据、建筑体积信息和高分辨率（100米），由欧盟委员会联合研究中心生产，适用于全球人口动态分析。