We use two similar but distinct methodologies to produce displacement estimates related to conflict and violence, and disasters. In the case of conflict- and violence-induced displacement, we conduct situational monitoring in certain countries after we learn of the occurrence of displacement, and report the country-wide estimates of new displacement during the year and the total number of people displaced at year’s end. In contrast, we monitor and report cases of disaster-induced displacement on an event-by-event basis. For each of these events, we collect information from different sources and generate the most comprehensive and reliable displacement estimate for that disaster.
We rely on an extensive range of data sources including: national and subnational government authorities, UN agencies and other international organisations, related global databases, civil society organisations, news media outlets, and other entities.
For more in-depth information on our methodology, please refer to the Methodological Annex of the 2018 Global Report on Internal Displacement (GRID)
In order to facilitate the use of our datasets, we have included two codebooks, linked below, that describe the fields used as well as the limitations of our data.
Download Methodological Annex
Download Conflict-induced displacement codebook
Download Disaster-induced displacement codebook