Prognóstico das alterações na topografia no impacto das inundações (Itajubá/MG – Brasil)
DOI:
https://doi.org/10.22456/1807-9806.137981Palavras-chave:
HEC-RAS, mapeamento de inundações, simulação bidimensional, inundaçãoResumo
Com o aumento da urbanização, alguns tomadores de decisão acabam por realizar atitudes inadequadas que afetam o ambiente, por falta de conhecimento técnico ou interesse pessoal. No caso de áreas de inundação recorrente, a ocupação irregular pode causar uma série de problemas ambientais e econômicos. O Distrito Industrial do município de Itajubá-MG vem sofrendo ocupação acelerada e alterações morfométricas acentuadas. Visando prever o impacto dessas mudanças no uso e ocupação, este trabalho tem como objetivo traçar o diagnóstico das enchentes entre 2005 e 2021 e projetar um cenário futuro até o ano de 2030. Este artigo tem como objetivo avaliar os impactos causados pelas cheias. Foi utilizado o software HEC-RAS para simular as cinco propagações de cheias em seis cenários de ocupação. As simulações foram analisadas em oito locais de controle ao longo da área de estudo. Os resultados mostraram que, ao longo dos anos, em decorrência de uma ocupação crescente desta área, é prevista a ocorrência de represamentos de enchentes na região a montante dos aterros, mas devido à proporcionalidade da área, essas alturas de represamento são consideradas irrelevantes, não amplificando os danos causados pelas enchentes e, em alguns casos, levando à diminuição da área inundada no Distrito Industrial.
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