Fathom is a global leader in flood risk modelling and research, formed out of the University of Bristol Hydrology Research Group. Their work specializes in flood risk, insurance, emergency response, supply chain risk, CAT modelling and risk analysis.
Fathom-US 2.0 Flood Hazard Data provides the most comprehensive view of flood hazard across the United States. It is a unique combination of inland and coastal flooding based on the latest science and datasets to show US flood exposure. Future flood scenarios for 2020, 2035 and 2050 are simulated under the RCP 4.5 concentration scenario. Projections include fluvial, pluvial and coastal flood inundation, as well as modelling changes for precipitation, river discharge, sea-level rise, storm surge intensity and hurricane intensity. Simulated compounding flood is also added, for example the joint occurrence of higher river flows and coastal storm surge. A flood defence dataset has been built with input from multiple agencies and was independently validated.
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