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Erschienen in: Journal of Geographical Systems 3/2007

01.09.2007 | Original Article

Using fuzzy logic for modeling aquifer architecture

verfasst von: D. M. Allen, N. Schuurman, Q. Zhang

Erschienen in: Journal of Geographical Systems | Ausgabe 3/2007

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Abstract

Modeling the geologic architecture of an aquifer and visualizing its three-dimensional structure require lithologic data recorded during well drilling. Uncertainties in layer boundaries arise due to questionable quality of drilling records, mixing during the drilling process, which results in blurred contacts, and natural heterogeneity of the geologic materials. An approach for modeling and visualizing the spatial distribution of aquifer units three-dimensionally based on fuzzy set theory is developed. An indicator is defined for evaluating the possibility of aquifer existence based on fuzzy set theory and probability principles. A specific interpolation method for aquifer 3D spatial distribution requiring only very basic borehole log data is proposed. A 3D modeling and visualization system for aquifers is also developed, which can implement basic GIS functions, like borehole identification and cross-section creation. The methodology developed is tested using real borehole lithology data available for an aquifer in British Columbia, Canada.

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Fußnoten
1
Comparison of hydraulic conductivity values is commonly done using logarithm values due to ranges of this property that span several orders of magnitude.
 
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Metadaten
Titel
Using fuzzy logic for modeling aquifer architecture
verfasst von
D. M. Allen
N. Schuurman
Q. Zhang
Publikationsdatum
01.09.2007
Verlag
Springer-Verlag
Erschienen in
Journal of Geographical Systems / Ausgabe 3/2007
Print ISSN: 1435-5930
Elektronische ISSN: 1435-5949
DOI
https://doi.org/10.1007/s10109-007-0046-0

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