Uso da krigagem para caracterização da variabilidade espacial da condutividade hidráulica no semi-árido nordestino com enfoque bayesiano

Detalhes bibliográficos
Ano de defesa: 2006
Autor(a) principal: SILVA JÚNIOR, Arundo Nunes da
Orientador(a): MONTENEGRO, Abelardo Antônio de Assunção
Banca de defesa: STOSIC, Borko, MONTENEGRO, Suzana Maria Gico Lima
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal Rural de Pernambuco
Programa de Pós-Graduação: Programa de Pós-Graduação em Biometria e Estatística Aplicada
Departamento: Departamento de Estatística e Informática
País: Brasil
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4525
Resumo: This work analyzes the spatial variability of the saturated hydraulic conductivity using the Bayesian approach. There is a large interest in agriculture on determining the hydraulic conductivity of a cultivated area. This interest is mainly due to the direct relationship between the hydraulic conductivity and the amount of irrigation that the place receives. The study area is located in an aluvial valley of the semi-arid zone of Pernambuco state. The Hydraulic conductivity was spatially modelled and, through the geostatistical kriging technique the valley was mapped. A total of 98 measurement points have been analyted, with hydraulic conductivity measurements from piezometer tests in the saturated part of the valley, using slug tests. Both classical statistics and Bayesian methodology have been used in the study of the spatial variability. It has been observed the log normality of the data, and the variability structure estimated by the classic geostatistical found to be compatible with that estimated by the Bayesian methodology.