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Descripción

A new method for the determination of permeability fields in highly heterogeneous aquifers is proposed. It stems from the known relations between soil electric resistivity and permeability. Several cut-offs are made to electric resistivity probability distribution. These cut-offs are heuristic estimates about what classes of values of one variable should relate to what classes of values of the other. The outcome of this process is a set of cumulative indicator variables. These variables are then simulated. The permeability fields are obtained by the intersection of the indicator variables. These permeability fields may be used in the development of conceptual models; autocorrelation distances (integer scales) obtained on the permeability fields may used as input to macrodispersivity models. The method was applied to the Karst aquifer of the Escarpão, in central Algarve, Portugal. The images obtained fitted well the geologic structures identified by field works. The results of this method may be useful for the selection of new drilling spots, as input to flow and solute transport models, for the a priori determination of macrodispersivity parameters, and of the fractal behaviour of permeability distribution. This approach may be a very useful tool for aquifer parameterisation when the available information is scarce.

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Sapientia Repositório Institucional Universidade do Algarve  

Autor(es)

Nunes, Luís Miguel -  Ribeiro, Luís - 

Id.: 55311394

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveSoil permeability - 

Tipo de recurso: bookPart  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: restrictedAccess

Requerimientos técnicos:  Browser: Any - 

Fecha de contribución: 12-abr-2014

Contacto:

Localización:
* 1-901502-36-8

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