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A Multiple Natural Hazards Assessment Model Based on Geomorphic Terrain Units

A Multiple Natural Hazards Assessment Model Based on Geomorphic Terrain Units

Michael W. Hernandez
Copyright: © 2014 |Volume: 5 |Issue: 1 |Pages: 22
ISSN: 1947-9654|EISSN: 1947-9662|EISBN13: 9781466652477|DOI: 10.4018/ijagr.2014010102
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MLA

Hernandez, Michael W. "A Multiple Natural Hazards Assessment Model Based on Geomorphic Terrain Units." IJAGR vol.5, no.1 2014: pp.16-37. http://doi.org/10.4018/ijagr.2014010102

APA

Hernandez, M. W. (2014). A Multiple Natural Hazards Assessment Model Based on Geomorphic Terrain Units. International Journal of Applied Geospatial Research (IJAGR), 5(1), 16-37. http://doi.org/10.4018/ijagr.2014010102

Chicago

Hernandez, Michael W. "A Multiple Natural Hazards Assessment Model Based on Geomorphic Terrain Units," International Journal of Applied Geospatial Research (IJAGR) 5, no.1: 16-37. http://doi.org/10.4018/ijagr.2014010102

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Abstract

A Multiple Natural Hazards Assessment (MNHA) procedural model was developed to provide stakeholders (e.g., community planners and decision makers) with a clear methodology that examines the landscape as a probabilistic-based composite measure of the natural hazards at a terrain mapping unit scale. The model consists of four phases: (1) data collection; (2) individual natural hazard assessment (INHA); (3) Geomorphic Terrain Unit (GTU) development; and (4) composite MNHA classification. The model was tested in a case study across southern Davis County, Utah. Six hazards were integrated within a GIS model, producing a nonweighted probabilistic-based multi-hazard classification across GTUs. Examination of the results by stakeholders showed great potential for the model. During the evaluation workshop, stakeholders concurred that normalizing the class values using a simple frequency-based scale makes it easier to discern the differences in composite hazardousness across the community. The model is easily expanded to include objective or subjective weighting factors.

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