Analysis of the Hazard, Vulnerability, and Exposure to the Risk of Flooding (Alba de Yeltes, Salamanca, Spain)

Analysis of the Hazard, Vulnerability, and Exposure to the Risk of Flooding (Alba de Yeltes, Salamanca, Spain)

The present work has developed a method using GIS technology to evaluate the danger, vulnerability, and exposure to the risk of flooding in the Alba de Yeltes area (Salamanca, Spain). It is a non-structural measure for the prevention and mitigation of the risk of extraordinary flooding. After comple...

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Bibliographic Details
Published in:Applied sciences Vol. 7; no. 2; p. 157
Main Authors: Veleda, Sergio, Martínez-Graña, Antonio, Santos-Francés, Fernando, Sánchez-SanRoman, Javier, Criado, Marco
Format: Journal Article
Language:English
Published: Basel MDPI AG 2017
Subjects:
Algebra
Cartography
Climate models
environmental diagnostic
environmental impacts
environmental planning
Evaluation
Exposure
Flood insurance
Flood mapping
flood risk
Flooding
Flow rates
Flow velocity
Geographic information systems
Geology
Geomorphology
GIS
Hydrogeology
Hydrology
Land use
Mitigation
Risk
Risk analysis
Risk reduction
River beds
Rivers
Spatial distribution
Stormwater
Technology assessment
Vulnerability
Water pollution effects
Salamanca Spain
Spain
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Summary:The present work has developed a method using GIS technology to evaluate the danger, vulnerability, and exposure to the risk of flooding in the Alba de Yeltes area (Salamanca, Spain). It is a non-structural measure for the prevention and mitigation of the risk of extraordinary flooding. After completing a full analysis of the physical environment (climate, geology, geomorphology, hydrology, hydrogeology, and land use), hydrological-hydraulic modeling was carried out using the GeoHecRas river analysis software. The results obtained from the analysis and the models have generated a danger map that facilitates the efficient evaluation of the spatial distribution of the different severity parameters (depth of the watersheet, current flow rate, and flood-prone areas). Also, map algebra and the databases associated with GIS tools, together with the vulnerability and exposure cartography, have allowed the risk to be analyzed in an integrate manner and the production of an environmental diagnostic map. The results of this study propose that there are inhabited areas close to the Yeltes-Morasverdes riverbed that have a high risk of flooding, indicating the need for proper land planning and the implementation of a series of measures that will help to reduce the risk of flooding and its impact.
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ISSN:2076-3417
2076-3417
DOI:10.3390/app7020157