Fig. 1

Fig. 2

Fig. 3

Characteristics of broad-scale population grids_
| Project | Region | Resolution | Timestamp | Availability |
|---|---|---|---|---|
| WorldPop | South America, Central America, Africa, Asia | 100 m (country), 1 km (continent) | 2010–2020 with 5 year interval | http://www.worldpop.org.uk |
| LandScan | world-wide | 1 km | 2000–2017 with 1 year interval | https://landscan.ornl.gov |
| GPWv4 | world-wide | 1 km | 2000, 2010, 2015, 2020 | http://sedac.ciesin.columbia.edu |
| E.U. pop grid | European Union countries | 100 m | 2000 | http://www.eea.europa.eu |
| Australian pop.grid | Australia | 1 km | 2011 | http://www.abs.gov.au |
| SEDAC-USA | United States | 1 km (USA), 250 m (MSA) | 1990, 2000, 2010 | http://sedac.ciesin.columbia.edu |
| SocScape | United States | 30 m | 1990, 2000, 2010 | http://sil.uc.edu |