The national risk index: establishing a nationwide baseline for natural hazard risk in the US

The National Risk Index developed by the Federal Emergency Management Agency provides a relative measurement of community-level natural hazard risk across 50 US states and Washington, DC. The Index leverages authoritative nationwide datasets and multiplies values for exposure, annualized frequency,...

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Veröffentlicht in:Natural hazards (Dordrecht) Jg. 114; H. 2; S. 2331 - 2355
Hauptverfasser: Zuzak, Casey, Mowrer, Matthew, Goodenough, Emily, Burns, Jordan, Ranalli, Nicholas, Rozelle, Jesse
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Dordrecht Springer Netherlands 01.11.2022
Springer Nature B.V
Schlagworte:
Applications programs
Civil Engineering
Datasets
Earth and Environmental Science
Earth Sciences
Emergency management
Emergency preparedness
Environmental Management
Geography
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Hazards
Hydrogeology
Measurement
Natural Hazards
Original Paper
Resilience
Risk
Risk analysis
Risk factors
Social resilience
Statistical analysis
Vulnerability
United States > US
Multi-hazard
Natural hazards
Risk methodology
Expected annual loss
National risk index
ISSN:0921-030X, 1573-0840
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:The National Risk Index developed by the Federal Emergency Management Agency provides a relative measurement of community-level natural hazard risk across 50 US states and Washington, DC. The Index leverages authoritative nationwide datasets and multiplies values for exposure, annualized frequency, and historic loss ratio to derive expected annual loss estimates for 18 hazard types and combines this metric with Social Vulnerability and Community Resilience scores to generate Risk Index scores for every Census tract and county. Scores provide a holistic and comparable measure of risk across the US. Risk scores and underlying data are summarized in a custom web application. Geographical and statistical processing techniques were used to reconcile incompatibilities between the spatial and temporal collection of input datasets. The index was developed using a multidisciplinary and collaborative approach and input from subject matter experts across disciplines and target users. The National Risk Index builds upon previous efforts to develop a multi-hazard risk measurement for a large geography by expanding the number of hazard types considered, applying extensive geoprocessing techniques to combine diverse datasets, and combining traditional risk factors with the community risk factors of social vulnerability and community resilience for an enhanced nationwide picture of risk.
Bibliographie:ObjectType-Article-1
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ObjectType-Feature-2
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ISSN:0921-030X
1573-0840
DOI:10.1007/s11069-022-05474-w