A metodologia dos máximos de precipitação aplicada ao estudo de eventos extremos diários nos municípios de Crato, Fortaleza e Sobral-CE
Resumo
No Brasil, eventos extremos máximos de precipitação são
constantemente noticiados pela mídia devido ao grande poder deflagrador
de impactos socioambientais que possuem. Como existem muitos fatores e
variáveis que dificultam a identificação de um evento como extremo, este
artigo objetiva identificar e avaliar eventos extremos máximos diários
de chuva a partir da aplicação da metodologia estatística dos máximos de
precipitação nos municípios cearenses de Crato, Fortaleza e Sobral
(altamente urbanizados e localizados em contextos geoambientais
diferentes). No período de janeiro de 1980 a junho de 2017
identificou-se eventos de grande intensidade, sistemas atmosféricos
relacionados e impactos associados a estes. A maioria dos eventos
ocorreu entre fevereiro e maio, geralmente associados à Zona de
Convergência Intertropical - ZCIT. Dentre os impactos registrados
destacam-se alagamentos, desabrigo, feridos e até mortes. Ainda que tais
episódios ocorram, o planejamento e a gestão adequados podem contribuir
para a adoção de estratégias de adaptação e prevenção.
Abstract
THE PRECIPITATION CAPITAL LEVEL METHODOLOGY ENFORCED TO DAILY EXTREME EVENT STUDIES IN CRATO, FORTALEZA AND SOBRAL CITY IN BRAZIL
In Brazil, capital extreme events of precipitation are often broadcasted by press due to their big exploder force of environmental impacts into society. This work has the goal of identify and assess the daily capital extreme events of rain from the application of the stastistic methodology of precipitation capital levels in the cearence cities of Crato, Fortaleza and Sobral (highly urbanized and located into different geo-environmental contexts) facing factors and different situations which hinder the identification of an event as an extreme event. From January of 1980 to july of 2017 has been identified events of huge intensity, connected atmospheric systems and related impacts. Most of these events has occurred between february and may, usually connected to the intertropical convergence zone – ICZ. Among the registered impacts stand out floodings, homeless, injured people and dead ones. Even if these situations occur, planning and suitable management may contribute to implementation of adaptation and prevention strategies.
Abstract
THE PRECIPITATION CAPITAL LEVEL METHODOLOGY ENFORCED TO DAILY EXTREME EVENT STUDIES IN CRATO, FORTALEZA AND SOBRAL CITY IN BRAZIL
In Brazil, capital extreme events of precipitation are often broadcasted by press due to their big exploder force of environmental impacts into society. This work has the goal of identify and assess the daily capital extreme events of rain from the application of the stastistic methodology of precipitation capital levels in the cearence cities of Crato, Fortaleza and Sobral (highly urbanized and located into different geo-environmental contexts) facing factors and different situations which hinder the identification of an event as an extreme event. From January of 1980 to july of 2017 has been identified events of huge intensity, connected atmospheric systems and related impacts. Most of these events has occurred between february and may, usually connected to the intertropical convergence zone – ICZ. Among the registered impacts stand out floodings, homeless, injured people and dead ones. Even if these situations occur, planning and suitable management may contribute to implementation of adaptation and prevention strategies.
Palavras-chave
Eventos extremos; Metodologias Estatísticas; Impactos
Socioambientais / Extreme events; Statistic methodologies;
Socio-environmental impacts
Texto completo:
PDFDOI: http://dx.doi.org/10.9771/1984-5537geo.v13i2.24011
GeoTextos. ISSN
eletrônico: 1984-5537
ISSN
impresso: 1809-189X