TY - JOUR
T1 - Hazards, vulnerability, and risk analysis on wave overtopping and coastal flooding in low-lying coastal areas
T2 - The case of costa da caparica, Portugal
AU - Ferreira, José Carlos
AU - Cardona, Fábio Santos
AU - Santos, Catarina Jóia
AU - Tenedório, José António
N1 - info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEAM-OCE%2F31207%2F2017/PT#
nfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04647%2F2020/PT#
PY - 2021/1/19
Y1 - 2021/1/19
N2 - Coastal areas are densely populated areas, and they have been experiencing increasing pressures as a consequence of population growth, but also because of climate change aggravation. For this reason, hazard, vulnerability, and risk indexes have been becoming more recurrent, especially to study and analyze low-lying coastal areas. This study presents an analysis on wave overtopping and coastal flooding, using an Analytic Hierarchy Process (AHP) multicriteria methodology, in Costa da Caparica (Portugal). The definition of the different criteria, as well as their respective weighting for the overall problem and index calculation, was carried out with the help of experts in the subject. By following this methodology, and by using Geographic Information Systems (GIS), hazard, vulnerability, and risk indexes were obtained. The most hazardous areas are located closest to the sea, where the elevation is the lowest, whereas the most vulnerable areas are in neighborhoods with specific socioeconomic characteristics (high urban and economic density). Overall, around 30% of the study area displays moderate to very high risk regarding the occurrence of overtopping and flooding events. The results of this study will be helpful in decision-making processes in matters of coastal zone management and monitoring.
AB - Coastal areas are densely populated areas, and they have been experiencing increasing pressures as a consequence of population growth, but also because of climate change aggravation. For this reason, hazard, vulnerability, and risk indexes have been becoming more recurrent, especially to study and analyze low-lying coastal areas. This study presents an analysis on wave overtopping and coastal flooding, using an Analytic Hierarchy Process (AHP) multicriteria methodology, in Costa da Caparica (Portugal). The definition of the different criteria, as well as their respective weighting for the overall problem and index calculation, was carried out with the help of experts in the subject. By following this methodology, and by using Geographic Information Systems (GIS), hazard, vulnerability, and risk indexes were obtained. The most hazardous areas are located closest to the sea, where the elevation is the lowest, whereas the most vulnerable areas are in neighborhoods with specific socioeconomic characteristics (high urban and economic density). Overall, around 30% of the study area displays moderate to very high risk regarding the occurrence of overtopping and flooding events. The results of this study will be helpful in decision-making processes in matters of coastal zone management and monitoring.
KW - Analytical hierarchy process
KW - Coastal hazard
KW - Coastal risk
KW - Coastal vulnerability
KW - Multicriteria analysis
UR - http://www.scopus.com/inward/record.url?scp=85099782670&partnerID=8YFLogxK
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000611744400001
U2 - 10.3390/w13020237
DO - 10.3390/w13020237
M3 - Article
AN - SCOPUS:85099782670
SN - 2073-4441
VL - 13
JO - Water (Switzerland)
JF - Water (Switzerland)
IS - 2
M1 - 237
ER -