The Gridded Population of the World (GPW) series, now in its fourth version (GPWv4), models the distribution of human population (counts and densities) on a continuous global surface. Since the release of the first version of this global population grid in 1995, the essential inputs have been population census tables and corresponding geographic boundaries. For GPWv4, population input data are collected at the most detailed spatial resolution available from the results of the 2010 round of censuses, which occurred between 2005 and 2014. The input data are extrapolated to produce population estimates for the years 2000, 2005, 2010, 2015, and 2020. A set of estimates adjusted to national level, historic and future, population predictions from the United Nation's World Population Prospects report are also produced for the set same set of years. GPWv4 is gridded with an output resolution of 30 arc-seconds (approximately 1 km at the equator).

Socioeconomic Data and Applications Center (SEDAC) is a center with NASA's Earth Observing System Data and Information System (EOSDIS) — Hosted by CIESIN at Columbia University.

Contact Information
Contact Organization: 
Socioeconomic Data and Applications Center (SEDAC)
Publication Information
Author: 
GPW, GPWv4, Gridded Population of the World, SEDAC
Publication Year: 
2016