Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil

Natural hazards in cities represent major challenges in terms of urban planning, requiring a solid theoretical and methodological basis of analysis in order to avoid socioeconomic damage. Through the concept of susceptibility and its applicability in urban planning, the present work proposes a model...

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Main Authors: Edmundo Rodrigues de Brito, Frederico de Holanda Bastos
Format: Article
Language:English
Published: Confins 2021-12-01
Series:Confins
Subjects:
Online Access:https://journals.openedition.org/confins/43945
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author Edmundo Rodrigues de Brito
Frederico de Holanda Bastos
author_facet Edmundo Rodrigues de Brito
Frederico de Holanda Bastos
author_sort Edmundo Rodrigues de Brito
collection DOAJ
description Natural hazards in cities represent major challenges in terms of urban planning, requiring a solid theoretical and methodological basis of analysis in order to avoid socioeconomic damage. Through the concept of susceptibility and its applicability in urban planning, the present work proposes a modeling of susceptibility to flood events for the main rivers of the city of Crato/Ceará/Brazil (rivers Granjeiro, Batateiras, Saco do Lobo and Constantino), in due to recurring local problems associated with flood events. Through the combination of statistical techniques, geoprocessing and hydrological analysis, the research proposed for each river under study, three levels of susceptibility to flooding (with a degree of centimetric detail), according to the adopted recurrence time, with five years for the areas of high susceptibility, twenty years for areas of medium susceptibility and one hundred years for areas of low susceptibility. The result indicates sectors of the urban area that have already suffered environmental problems associated with the increase in river water in events of intense precipitation, with emphasis on the areas surrounding the Granjeiro River, in addition to indicating areas with tendencies to present similar problems from the intensification of inappropriate human occupations, thus serving as a subsidy for urban planning with a view to minimizing local natural risks.
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issn 1958-9212
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spelling doaj-art-6a775832567b49c9935ecae68e6345002025-01-13T15:54:04ZengConfinsConfins1958-92122021-12-015310.4000/confins.43945Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/BrasilEdmundo Rodrigues de BritoFrederico de Holanda BastosNatural hazards in cities represent major challenges in terms of urban planning, requiring a solid theoretical and methodological basis of analysis in order to avoid socioeconomic damage. Through the concept of susceptibility and its applicability in urban planning, the present work proposes a modeling of susceptibility to flood events for the main rivers of the city of Crato/Ceará/Brazil (rivers Granjeiro, Batateiras, Saco do Lobo and Constantino), in due to recurring local problems associated with flood events. Through the combination of statistical techniques, geoprocessing and hydrological analysis, the research proposed for each river under study, three levels of susceptibility to flooding (with a degree of centimetric detail), according to the adopted recurrence time, with five years for the areas of high susceptibility, twenty years for areas of medium susceptibility and one hundred years for areas of low susceptibility. The result indicates sectors of the urban area that have already suffered environmental problems associated with the increase in river water in events of intense precipitation, with emphasis on the areas surrounding the Granjeiro River, in addition to indicating areas with tendencies to present similar problems from the intensification of inappropriate human occupations, thus serving as a subsidy for urban planning with a view to minimizing local natural risks.https://journals.openedition.org/confins/43945Natural Hazards; Urban Rivers; Brazilian semiarid; Modeling
spellingShingle Edmundo Rodrigues de Brito
Frederico de Holanda Bastos
Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
Confins
Natural Hazards; Urban Rivers; Brazilian semiarid; Modeling
title Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
title_full Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
title_fullStr Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
title_full_unstemmed Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
title_short Suscetibilidade a eventos de inundação como subsídio ao planejamento urbano - O estudo da cidade do Crato/Ceará/Brasil
title_sort suscetibilidade a eventos de inundacao como subsidio ao planejamento urbano o estudo da cidade do crato ceara brasil
topic Natural Hazards; Urban Rivers; Brazilian semiarid; Modeling
url https://journals.openedition.org/confins/43945
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