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Oxford researchers develop tool to predict where people go after a disaster

Oxford University

When disasters such as earthquakes happen, governments and humanitarian organisations need to rapidly allocate aid resources to facilitate recovery, minimise the number of people displaced and reduce the long-term effects. This is a complex task that needs be undertaken in a very short space of time, with potentially serious consequences if not done well.

Being able to predict more accurately where people go in the wake of a disaster could be transformative for disaster management: it allows those coordinating the response to ensure shelters are placed in the best locations for the right number of people.

Researchers at Department of Statistics, University of Oxford, in collaboration with the Internal Displacement Monitoring Centre (IDMC), have developed an open source software package to estimate displaced populations post-disaster, currently with a focus on earthquakes and cyclones. The software tool has been developed by Dr Hamish Patten and Prof David Steinsaltz, who form part of the department’s bio-demography group. The project, funded by the Engineering and Physical Sciences Research Council Impact Acceleration Account (EPSRC-IAA) grant, has recently been published with the Global Report on Internal Displacement (GRID) 2021.

The research involved building an open source statistical software product consisting of two components:

  • a back-end system which combines the data, model and state-of-the-art statistical methods into a predictive tool, learning from a broad range of historical events in order to make well-informed and accurate predictions of displacement post-disaster.
  • a front-end system that interactively visualises the data and predictions, to allow a detailed exploration of important disaster information.

In a comparison of predictions against past displacement figures for over one-hundred earthquakes in 38 different countries around the world, the tool accurately predicted the total displaced population at least ten times more accurately than world leading risk models produced by the United States Geological Survey (USGS) and the Global Disaster Alerting Coordination System (GDACS). The predictions have also enabled a mapping of how the displaced population is expected to be spatially distributed, which can be used to identify displacement ‘hotspots’ in order to allocate resources more effectively.

Read the whole article here.

  Quelle: The Oxford Science Blog (12.7.2021)
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