Simultaneous estimation of transmissivity (or conductivity), storage coefficient (or porosity) and effective recharge, in a stochastic framework

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 1999

Autores

Manuel Maria Pacheco Figueiredo (Autor) FEUP; Luís Ribeiro (Autor) Outra; José Manuel Pinto Ferreira Lemos (Autor) FEUP

Ata de Conferência Internacional

Título: Proceedings of the ModelCARE'99: Calibration and Reliability in Groundwater Modelling - Coping with Uncertainty

Páginas: 124-130

ModelCARE'99: Calibration and Reliability in Groundwater Modelling - Coping with Uncertainty

Outras Informações

Abstract (EN): Solving differential equations, which rule transient groundwater flow in confined or unconfined porous aquifers, implies the previous knowledge of hydrogeological parameters and effective recharge. In a stochastic framework, the hydrogeological parameters are seen as random functions and their log-transforms can be represented by stationary isotropic multivariate normal random functions characterized by a small number of parameters. Recharge from rainfall can be assessed as a percentage of total precipitation. An algorithm, based on an inverse method approach, which simultaneously estimates all these parameters is described. This algorithm is complemented by a co-kriging technique which produces the first and second conditional moments of those hydrogeological parameters. A short description, as well as an application of this methodology to a synthetic case, is presented, including comparisons between

Idioma: Português

Tipo (Avaliação Docente): Científica

Nº de páginas: 7