Avaliação e redimensionamento de redes para o monitoramento fluviométrico utilizando o método sharp e o conceito de entropia

AUTOR(ES)

Wilde Cardoso Gontijo Junior

DATA DE PUBLICAÇÃO

2007

RESUMO

Information of the hydrologic regime characteristics of the watercourses in a hydrologic basin are the starting point for developing water resources management actions taking its multiple uses into account. Setting up of such knowledge is carried out by means of information about the river discharges during certain period through the settlement of monitoring flow stations. The network composed by these stations should be enough for generating suitable information for giving support to the multiple purposes as well as being optimally located. The data generated should allow satisfactory modelling of the hydrologic behaviour of the basin, independently of the existence of monitoring points at specific sections, such as to ensure information at those points. Nevertheless, the location of the stations in Brazil has been almost always carried out in empirical fashion without help of scientific methods that could allow planning their installation, operation and maintenance. This work is aimed at joining up both the concepts that should guide the assembling of a flow monitoring network and the methodologies and methods available at the specialised bibliography in order to propose a procedure that, in a prompt way, could be applied to both the already existing networks and others to be suggested. After describing and classifying such methods, it was chosen to apply the concept of entropy both in locating stations within basins that are not endowed with initial information, using the Sharp method, and in optimising networks within basins in which data have been collected during several years. This concept and its associated methods allow a quick evaluation for the network to be either proposed or optimised, starting from a topological analysis of the drainage network and data series statistic behaviour. The procedure application proposed to the three hydrographic regions in the basin of the river São Francisco, in Brazil, allowed to analyze the relevancies and difficulties of the methods used for evaluation and readjusted of surface water monitoring networks beyond the proposal of new studies for respective scientific improvement.

ASSUNTO(S)

ecologia método sharp redes de monitoramento redes fluviométricas conceito de entropia

Documentos Relacionados

• DetecÃÃo de variaÃÃes temporais em imagens SAR utilizando o conceito de entropia.
• Uma Proposta de Metodologia para Avaliação de Desempenho de Redes de Computadores e o Estudo de Caso no Redimensionamento da Rede UFES.
• Confiabilidade estrutural utilizando o método de Monte Carlo e redes neurais
• Redimensionamento de redes de telefones públicos urbanos
• Método respirométrico para o monitoramento de processos biológicos