Household Level Vulnerability Analysis—Index and Fuzzy Based Methods

Coastal vulnerability assessment due to climate change impacts, particularly for sea level rise, has become an essential part of coastal management all over the world. For the planning and implementation of adaptation measures at the household level, large-scale analysis is necessary. The main aim o...

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Main Author: Martina Baučić
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:ISPRS International Journal of Geo-Information
Subjects:
Online Access:https://www.mdpi.com/2220-9964/9/4/263
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author Martina Baučić
author_facet Martina Baučić
author_sort Martina Baučić
collection DOAJ
description Coastal vulnerability assessment due to climate change impacts, particularly for sea level rise, has become an essential part of coastal management all over the world. For the planning and implementation of adaptation measures at the household level, large-scale analysis is necessary. The main aim of this research is to investigate and propose a simple and viable assessment method that includes three key geospatial parameters: elevation, distance to coastline, and building footprint area. Two methods are proposed—one based on the Index method and another on fuzzy logic. While the former method standardizes the quantitative parameters to unit-less vulnerability sub-indices using functions (avoiding crisp classification) and summarizes them, the latter method turns quantitative parameters into linguistic variables and further implements fuzzy logic. For comparison purposes, a third method is considered: the existing Index method using crisp values for vulnerability sub-indices. All three methods were implemented, and the results show significant differences in their vulnerability assessments. A discussion on the advantages and disadvantages led to the following conclusion: although the fuzzy logic method satisfies almost all the requirements, a less complex method based on functions can be applied and still yields significant improvement.
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spelling doaj.art-300c189bb8cf45a18e8e1fd9f98817332023-11-19T22:07:11ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-04-019426310.3390/ijgi9040263Household Level Vulnerability Analysis—Index and Fuzzy Based MethodsMartina Baučić0Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Matice hrvatske 15, 21000 Split, CroatiaCoastal vulnerability assessment due to climate change impacts, particularly for sea level rise, has become an essential part of coastal management all over the world. For the planning and implementation of adaptation measures at the household level, large-scale analysis is necessary. The main aim of this research is to investigate and propose a simple and viable assessment method that includes three key geospatial parameters: elevation, distance to coastline, and building footprint area. Two methods are proposed—one based on the Index method and another on fuzzy logic. While the former method standardizes the quantitative parameters to unit-less vulnerability sub-indices using functions (avoiding crisp classification) and summarizes them, the latter method turns quantitative parameters into linguistic variables and further implements fuzzy logic. For comparison purposes, a third method is considered: the existing Index method using crisp values for vulnerability sub-indices. All three methods were implemented, and the results show significant differences in their vulnerability assessments. A discussion on the advantages and disadvantages led to the following conclusion: although the fuzzy logic method satisfies almost all the requirements, a less complex method based on functions can be applied and still yields significant improvement.https://www.mdpi.com/2220-9964/9/4/263climate changefuzzy logicGIS, householdIndex methodsea level risevulnerability
spellingShingle Martina Baučić
Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
ISPRS International Journal of Geo-Information
climate change
fuzzy logic
GIS, household
Index method
sea level rise
vulnerability
title Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
title_full Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
title_fullStr Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
title_full_unstemmed Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
title_short Household Level Vulnerability Analysis—Index and Fuzzy Based Methods
title_sort household level vulnerability analysis index and fuzzy based methods
topic climate change
fuzzy logic
GIS, household
Index method
sea level rise
vulnerability
url https://www.mdpi.com/2220-9964/9/4/263
work_keys_str_mv AT martinabaucic householdlevelvulnerabilityanalysisindexandfuzzybasedmethods