Physical Exposure to Drought
Drought is a phenomenon that affects more people globally than any other natural hazard. Unlike aridity, which refers to a semi-permanent condition of low precipitation (desert regions), drought results from the accumulated effect of deficient precipitation over a prolonged period of time.
The units used in this product refer to the expected average annual population (2010 as the year of reference) exposed (inhabitants). The dataset includes an estimate of the annual physical exposure to drought. It is based on three sources:
Sixteen years of wildfires in Asia-Pacific
Wild land fires and other biomass fires annually burn a total land area of between 3.5 and 4.5 million km2, equivalent to the surface area of India and Pakistan together, or more than half of Australia. This makes it one of the most spatially prevalent hazards after drought.