Understanding the source and methodology behind the migration flow visualizations
Disclaimer: This visualization is an independent project and we have no affiliation with the research authors or their institutions. Further more, this data represents all types of migration (from aggregated data from Facebook) and is therefore a mix of both regular and irregular migration and should not be used for any policy decisions.
Authors: G. Chi, G.J. Abel, D. Johnston, E. Giraudy, & M. Bailey
Publication: Proc. Natl. Acad. Sci. U.S.A. 122 (18) e2409418122 (2025)
2019-2022
Monthly flows
Global migration patterns
Online data aggregation
Privacy Note: Individual-level data used to construct these estimates are not publicly available due to data provider restrictions. Only anonymized, aggregated migration flow estimates are accessible.
This research represents an approach to measuring global migration flows by leveraging online data sources. The methodology provides unprecedented temporal resolution (monthly flows) and global coverage, offering new insights into migration patterns and seasonal variations.
Uses online data to overcome traditional migration data limitations, providing more timely and granular insights.
Methods validated against traditional migration statistics and administrative records where available.
We gratefully acknowledge the authors for making their research and data accessible to the scientific community, enabling projects like this to build upon their important work. 🌍