Eventos de Chuva Característicos: metodologia adaptada e aplicada a poços de infiltração na cidade de São Carlos–SP
Keywords:
eventos de chuva, drenagem urbana, visual basicAbstract
Frequentemente as cidades brasileiras sofrem com inundações, deslizamentos e erosões causadas pelo escoamento superficial da água da chuva. Os sistemas de drenagem urbanos sustentáveis incorporam técnicas de infiltração, evaporação e retenção do escoamento superficial com o objetivo de mimetizar o ciclo hidrológico pré-urbanização. Este trabalho adapta e aplica a metodologia de eventos de chuva característicos (ECC) a partir de uma série histórica de dados pluviométricos para simulação do comportamento hidrológico de poços de infiltração no município de São Carlos/SP. O método ECC busca auxiliar os profissionais que trabalham com dispositivos de drenagem a melhor entender o comportamento desses em um cenário de chuva real. Foram determinados ECC para seis categorias de tempo de retorno, utilizando os dados da estação automática do Instituto Nacional de Meteorologia (INMET) através de rotina de cálculos programados em Visual Basic for Applications (VBA). Os ECC são uma forma matematicamente confiável de escolha de um evento pluviométrico histórico para simulação do comportamento de dispositivos de drenagem urbana mais sustentável.
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