The Aqueduct Global Flood Risk Maps provide current and future river flood risk estimates in urban damage, affected GDP, and affected population by country, river basin, and state.

The datasets in these maps include current and future river flood risk estimates in urban damage, affected GDP, and affected population by country, river basin, and state.

For the current scenario, we used hydrological data from 1960 through 1999 for generating flood inundations for 9 return periods, from 2-year flood to 1000-year flood, and 2010 GDP, population, and land use data for assessing flood impacts.

For future projections, we used 5 GCMs (Global Climate Models) from CMIP5 (Coupled Model Intercomparison Project Phase 5) projecting future flood inundations under two climate scenarios, RCP4.5 (Representative Concentration Pathway) and RCP8.5, and projected socio-economic changes using SSP2 (Shared Socio-economic Pathway) and SSP3, from the Intergovernmental Panel on Climate Change Assessment Report 5.

Resources

Aqueduct Global Flood Analyzer

A Framework for Global River Flood Risk Assessments

Assessing Flood Risk at the Global Scale: Model Setup, Results, and Sensitivity

Authors

Hessel Winsemius, Senior Researcher, Deltares
Phillip Ward, Senior Researcher, Institute for Environmental Studies of the VU University of Amsterdam

Use Limitations

Licensed under the Creative Commons Attribution 3.0 (unported) License.