Multi-indicator geospatial analysis of conflict exposure, settlement contraction and population change in Borno State, Nigeria (2015–2023).
# Conflict-Induced Displacement and Settlement Change in Borno State, Nigeria (2015–2023)
## Overview
This project examines settlement change across Borno State between 2015 and 2023. I used several geospatial datasets together because no single indicator can reliably show whether a settlement has contracted, remained active or been abandoned.
The analysis screened **2,455 settlements across all 27 LGAs in Borno State**. I combined built-up change, night-time lights, conflict exposure and modelled population change, then examined **13 settlements in detail**.
The final interpretation identified **3 priority contraction cases**, **7 priority change-signal cases**, and **3 retained cases where population evidence was insufficient**. None of the 13 cases is presented as a confirmed abandoned settlement.
---
## Research Question
**Where do multiple geospatial indicators point to meaningful settlement contraction or change across conflict-affected Borno State?**
---
## Study Area
The study covers **Borno State, north-eastern Nigeria**, including all **27 Local Government Areas**. The settlement screening included **2,455 populated places**.
The 13 detailed validation cases are located in:
- Abadam
- Bama
- Gwoza
- Kala Balge
- Konduga
- Ngala
---
## Why This Matters
Conflict can affect settlements in different ways. People may leave, return or relocate. Buildings may be damaged or removed. Night-time activity may reduce. Some settlements may also recover while others continue to decline.
Because these processes do not always move together, I avoided using a single dataset as proof of settlement abandonment. Instead, I compared different indicators and used the level of agreement between them to guide the final interpretation.
---
## Data Sources
| Dataset | Main Use |
|---|---|
| GeoNames populated places | Settlement locations and statewide screening |
| ACLED | Conflict exposure around settlements |
| VIIRS night-time lights | Change in detected …