Delta Data
Version 4 of the DMSP-OLS Nighttime Lights Time Series consists of cloud-free composites made using all the available archived DMSP-OLS smooth resolution data for calendar years. In cases where two satellites were collecting data, two composites were produced.
The Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11 consists of estimates of human population density (number of persons per square kilometer) based on counts consistent with national censuses and population registers, for the years 2000, 2005, 2010, 2015, and 2020.
Global high-resolution, contemporary data on human population distributions are a prerequisite for the accurate measurement of the impacts of population growth, for monitoring changes, and for planning interventions. The WorldPop project aims to meet these needs through the provision of detailed and open access population distribution datasets built using transparent and peer-reviewed approaches.
This data set includes the information of urban built-up areas under different social and economic paths of global sharing in 2020-2070.This data set can provide data support for assessing the impact of the global future urban expansion process.
Our dataset provides the distribution of specific populations in each delta with unprecedented precision, including the number of children under 5 years of age, women of childbearing age, adolescents and the elderly. Instead of using Facebook data, these maps are drawn using machine vision AI technology, satellite images and demographic information.
Critical infrastructure (CI) is fundamental for the functioning of a society and forms the backbone for socio-economic development.a Critical Infrastructure Spatial Index (CISI) to express the global spatial intensity of CI. The datasets are generated from Open Streetmap extract from 8th January 2021 using https://planet.openstreetmap.org/.