Global Flood Mortality Risk Distribution Grid

Global Flood Mortality Risks and Distribution is a 2.5-minute resolution global grid estimating potential mortality from flood hazards. The dataset was produced by Columbia University's CHRR and CIESIN in collaboration with The World Bank, using mortality records from 1981 to 2000. It classifies mortality risk estimates into ten decile-based hazard classes.

Use Cases

• Modeling regional flood mortality risk by analyzing the decile classification of grid cells.
• Assessing population exposure to flood hazards by combining the mortality risk grid with baseline population data from GPWv3.
• Validating flood mortality models using the underlying hazard frequency data from the Global Flood Hazard Frequency and Distribution dataset.
• Producing global maps of relative flood mortality risk for policy planning using the 10-class hazard classification.

Strengths

• Global coverage at a 2.5-minute grid resolution.
• Risk estimates are based on 20 years of regional mortality records (1981-2000) from the EM-DAT database.
• Mortality estimates are classified into 10 deciles for relative risk comparison.

Limitations

• Underlying mortality records and hazard frequency data are over 20 years old, limiting contemporary relevance.
• Risk is presented as a relative decile classification rather than absolute mortality figures.
• Spatial resolution may be too coarse for local-scale analysis.

Provenance

Source

Columbia University Center for Hazards and Risk Research (CHRR), The World Bank, Columbia University Center for International Earth Science Information Network (CIESIN).

Collection Method

Mortality loss estimates calculated using EM-DAT records; hazard frequency from Global Flood Hazard Frequency dataset; baseline population from Gridded Population of the World v3.

Time Range

1981-2000

Freshness

Data reflects conditions up to the year 2000.

Geography

Global