Navegando por Assunto "Sistema de alerta"

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Acesso aberto (Open Access)
Aprimoramento normativo do sistema de alertas de desastres naturais no município de Belém.
(Universidade Federal do Pará, 2019-05-10) BRITO, Wagner Lobato; MORAES, Bergson Cavalcanti de; http://lattes.cnpq.br/8462634544908052
The democratic state of Brazilian law has been evolving significantly in the improvement of legislation related to the management of risk minimization and mitigation of natural disasters. However, there is a lack of concrete normative provisions that regulate the municipal institution of an effective and effective system for the transmission of the alerts to the Civil Defense of the municipality of Belém, in order to minimize and even mitigate the risks of natural disasters and thus safeguard the vulnerable population. The need for a more robust and effective legal mechanism becomes clear when the impacts caused by natural disasters in the capital of the state of Pará are analyzed, as well as the communities that are affected and the population that is in imminent danger. The present study has as main objective the proposal of a normative tool of municipal civil defense, for Bethlehem, with the intention of prevention and mitigation of risks to natural disasters. In the region of study, natural disasters such as windstorms, floods and floods are frequent. It is known that the causes for occurrence of these events come from natural phenomena and their events are neither transient nor punctual. The methodological procedures consisted of analyzes of the current legislation related to the subject, at the federal, state and municipal level, as well as important information of the monitoring system of alerts and natural disasters, which served as reference to plan the elucidation of its execution, organization and legal analysis. Also analyzed were the hierarchies of the laws, characterizing the constitutionality of the norms and the legal powers that authorize and delegate the creation of normative instruments that regulate the system of monitoring and alerts of natural disasters. The product of the research is the elaboration of the draft of the proposal of amendment of the municipal Law, more precisely with regard to art. 5, item "F", to make the use of the alert tool made available by the monitoring institutions by the municipal Civil Defense agency dynamic and mandatory.
Acesso aberto (Open Access)
Sistema hidrológico para previsão de risco na Amazônia utilizando redes neurais.
(Universidade Federal do Pará, 2019-03-02) PERES, Victor da Cruz; ROCHA, Edson José Paulino da; http://lattes.cnpq.br/2313369423727020
The estimation of the future behavior of the levels of a river basin is fundamental for the elaboration of the plan of management of its water resources. The objective of this research was to model the relationship between rainfall and level through a technique known as artificial neural networks (RNA). RNAs are empirical models with functions similar to the functioning of the human brain. In this research, the ability of RNA to model the rain-level process on a daily basis was evaluated. Influences of network architecture, initialization of weights, and extension of data series were considered during RNA training. The five RNAs that produced the best results were confronted with the observed results. The results were very satisfactory. Finding in a dry and full alert system in Itaituba-Pa.