Flood risk analytics provider JBA Risk Management has updated its Global Flood Model, adding revised hazard maps, expanded climate scenarios and changes to exposure modelling.

The update covers 17 countries, including Japan, China, India and Brazil, with new terrain and land use data and improved classification of river and surface water flooding. It also introduces additional climate scenarios based on CMIP6 projections, including a 2080 time horizon, to support analysis of how flood risk may evolve.

JBA’s approach applies change factors from global climate models to hydrological time series, rather than adjusting existing events, altering the frequency, magnitude and spatial characteristics of simulated floods.

The model also includes updated exposure disaggregation using global building footprint data to improve asset placement and processing speed. It is built on the Oasis Loss Modelling Framework and is available across multiple platforms, including Verisk's Model Exchange and Aon’s Impact Forecasting Elements.

David Wood, managing director, JBA Risk Management, said: “Our new Global Flood Model’s enhanced functionality, built on our market-leading flood maps, enables our clients around the world to fully understand their flood exposure. They can now easily and quickly undertake ‘what if’ investigations based on their own needs, see the impacts on their losses under a range of scenarios, and fully understand individual and portfolio risk profiles.”

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