Documentation for the Global Gridded Relative Deprivation Index (GRDI), v1 (2010-2020)

The Global Gridded Relative Deprivation Index (GRDI), Version 1 (GRDIv1) data set characterizes the relative levels of multidimensional deprivation and poverty in each 30 arcsecond (~1 km) pixel, where a value of 100 represents the highest level of deprivation and a value of 0 the lowest. GRDIv1 is built from sociodemographic and satellite data inputs that were spatially harmonized, indexed, and weighted into six main components to produce the final index raster. Inputs were selected from the best-available data that either continuously vary across space or have at least administrative level 1 (provincial/state) resolution, and which have global spatial coverage.

全球网格化相对贫困剥夺指数（Global Gridded Relative Deprivation Index, GRDI）版本1（GRDIv1）数据集刻画了每30角秒（约1公里）像素单元的多维度贫困剥夺相对水平，其中数值100代表最高剥夺程度，数值0代表最低剥夺程度。GRDIv1以社会人口学与卫星遥感输入数据为基础构建，这些数据经过空间协调、索引赋值与加权处理后，被整合为六大核心组分，最终生成该指数栅格数据集。所选输入数据均为当前可获取的最优数据集，要么具备空间连续变化特性，要么至少达到一级行政单元（省级/州级）的空间分辨率，且实现了全球空间覆盖。

搜集汇总

背景与挑战

背景概述

该数据集为全球网格化相对贫困指数(GRDI)v1版(2010-2020)，以约1公里分辨率网格表征多维贫困相对水平(0-100值域)，通过整合社会人口统计和卫星数据构建，包含6个加权成分指标，采用全球覆盖且至少省级分辨率的最佳可用数据。