# A global dataset of annual urban extents (1992–2020) from harmonized nighttime lights

> Research article (Earth system science data, 2022) · cited 178× · AI/ML

**Wikidata**: [openalex:W4226337984](https://www.wikidata.org/wiki/openalex:W4226337984)  
**Source**: https://4ort.xyz/entity/a-global-dataset-of-annual-urban-extents-19922020-from-harmonized-nighttime-lights