Analysis of socio-environmental vulnerability in the city of Vitória-ES, with the support of a free sig.
Name: HELIO CARREÇO DE ALMEIDA JUNIOR
Type: MSc dissertation
Publication date: 29/08/2017
Advisor:
Name |
Role |
|---|---|
| AURÉLIA HERMÍNIA CASTIGLIONI | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ALEXANDRE ROSA DOS SANTOS | External Examiner * |
| ANDRE LUIZ NASCENTES COELHO | Internal Examiner * |
| AURÉLIA HERMÍNIA CASTIGLIONI | Advisor * |
Summary: In several cities in Brazil the needy population tend to settle in inappropiate areas, such as
slopes with risk of landslide, inundated areas and other environmental risks. This situation
indicates that the disadvantaged sections of society face socio-environmental vulnerability.
This paper aims to analyze socio-environmental vulnerability faced by the most needy portion
of the population from Vitoria ES and shows the importance of the Geographic Information
System (GIS) as a tool of measurement and representation of these situations. Thus, the
feasibility of adopting free geotechnologies will be demonstrated in order to approach this
theme by means of analyzing the socioeconomic, infrastructural as well as physical
environment variables. Given the fact that the data about the theme involve the analysis of
many variables it is possible that a small number of variables may contain more relevant
information, while most variables might add little or no information to the interpretation of
the results. It was adopted a reduction of variables during the choice of which variables are
relevant by means of objective criteria utilizing the Principal Component Analysis (PCA)
which enabled the construction of multidimensional graphs containing greater statistical
information. The variables analyzed showed high correlation and the results were spatialized
through a free GIS software which allowed forming groups of neighborhoods that present
similarities regarding the socio-environmental vulnerability. The applied methodology
enabled to identify a notable disparity among the neighborhoods of Vitoria, in which the West
neighborhoods of the municipality and those located in hills were considered the most
vulnerable. It is possible that the methodology of this research can be applied in the study of
socio-environmental vulnerability in any city or territorial unit with the input of other relevant
variables.
