Working with by researchers at the University of Bristol our US30 model was compared to flood maps produced by the Federal Emergency Management Agency and United States Geological Survey.
FEMA’s expenditure on flood mapping to 2013 is estimated to be up to 7.5bn. Our flood models produced comparable results with greater coverage for a fraction of the cost.
The study, published in 2017 in a world leading journal, concludes that:
• Our data attained a very high level of fit to FEMA flood maps, capturing over 80% of the flooded area specified.
• Compared to particularly high quality FEMA data our model replicated 86% of the specified floodplain.
• Relative to higher quality USGS models, our data captured up to 100% of the floodplain.
Wing, O. E. J., Bates, P. D., Sampson, C. C., Smith, A. M., Johnson, K. A. and Erickson, T. A., Validation of a 30 m resolution flood hazard model of the conterminous United States. Water Resour. Res.