New study: Proportion of world population exposed to floods grows tenfold in 15 years
August 12, 2021
Flooding affects more people than any other environmental disaster in the world. Between 2000 and 2019 alone, an estimated $651 billion in flood damages occurred globally.
As climate change projections indicate that the proportion of the population exposed to floods will only increase in the next decade, a lack of observational data and a reliance on traditional flood models — which have high uncertainty — limit researchers' ability to have a clear picture of the scale and human impact of recent floods.
New research led by Arizona State University PhD geography alumna Elizabeth Tellman uses satellite data to provide one of the clearest pictures to date of how floods are changing and who is at most risk.
In the study “Satellite imaging reveals increased proportion of population exposed to floods,” published in Nature, Tellman and her team used satellite imagery to analyze 913 large flood events around the world from 2000 to 2018, evaluating flood extent and population exposure.
Read more on ASU News. The paper's abstract follows.