Harmonised satellite-derived relative wealth estimates — 23 African countries (annual temporal RWI surfaces, 2017–2025)

This single record bundles harmonised, satellite-derived relative wealth estimates for 23 African countries as one file per country ({country}_rwi_h3_9_annual.parquet). Each file is a per-Uber H3 resolution-9 cell, annual panel spanning 2017–2025. It carries the predicted relative wealth index from four estimators — rwi_xgb, rwi_lasso, rwi_lassoridge and rwi_ols — together with their within-country percentiles. Estimates are anchored to the DHS asset-wealth index and built from Earth-observation, climate, connectivity and conflict predictors. Countries: Benin, Burkina Faso, Burundi, Cameroon, Gabon, Gambia, Ghana, Guinea, Kenya, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Nigeria, Rwanda, Senegal, Sierra Leone, Tanzania, Togo, Uganda and Zambia. Methods, validation and usage are described in the accompanying Data Descriptor. Released under CC-BY-4.0.