Disaster Management

Photo of a young woman checking her smartphone in a busy Philippines market.

Transforming Social Media Signals into Accurate Population Maps for Crisis Response

An international research team led by Dr Paolo Andrich, a visiting researcher at WorldPop based at the University of Oxford, has developed a novel statistical framework to turn anonymised, biased social media data into reliable population estimates. This approach provides a timely and contemporary alternative to traditional censuses, which are often static and struggle to […]

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Visible infrared satellite loop of Cyclone Ditwah, by SSEC/CIMSS, University of Wisconsin–Madison

How Open Population Data Makes a Difference in Crisis Response

In major disasters, rapid response depends on two critical pieces of information: how many people are affected and where they are. This knowledge enables responders to prioritise aid delivery to the most vulnerable populations. Recent evidence from Sri Lanka shows that open population data from WorldPop helps answer these questions quickly and reliably. Cyclone Ditwah

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