Description
-----------

This directory contains all datasets, source data, intermediate
products, exported GIS layers, quality assessment outputs, and
metadata related to Nigeria (NGA) included in the Spatially
Integrated Displacement Datasets archive.

The archive integrates displacement assessment data with
administrative boundary datasets using reproducible spatial
harmonisation and geocoding workflows developed by WorldPop,
University of Southampton.

Three principal products are provided:

1. idps.sdb
   A relational SQLite/SpatiaLite database intended for advanced
   users. It contains original displacement data, administrative
   boundaries, linkage tables, metadata, and intermediate
   processing products.

2. Exported GIS datasets
   Round-based spatial exports available in SQLite/SpatiaLite,
   GeoPackage, GeoJSON, and CSV formats. These preserve individual
   reporting rounds and include displacement reasons where
   available.

3. Full Wide-Format (FWF) datasets
   Harmonised GIS products intended for most users. Multiple
   reporting rounds are combined into single GIS layers by storing
   reporting periods as attributes. FWF datasets are available in
   GeoPackage, GeoJSON, CSV (including *.nogeo.csv), and
   SQLite/SpatiaLite formats.

The datasets cover the period 2022–2025 and are intended to
support humanitarian analysis, operational planning, mapping,
research, and future displacement modelling.
