GEOENT: A Toolbox for Calculating Directional Geological Entropy

Geological entropy is based on Shannon information entropy and measures order in the structure of a spatial random variable. Metrics have been defined to quantify geological entropy in multidimensional (2D and 3D) heterogeneous systems, for instance, porous and fractured geological media. This study...

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Main Authors: Daniele Pedretti, Marco Bianchi
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/12/5/206
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author Daniele Pedretti
Marco Bianchi
author_facet Daniele Pedretti
Marco Bianchi
author_sort Daniele Pedretti
collection DOAJ
description Geological entropy is based on Shannon information entropy and measures order in the structure of a spatial random variable. Metrics have been defined to quantify geological entropy in multidimensional (2D and 3D) heterogeneous systems, for instance, porous and fractured geological media. This study introduces GEOENT, a toolbox that can efficiently be used to calculate geological entropy metrics for any kind of input-gridded field. Additionally, the definition of geological entropy metrics is updated to consider anisotropy in the structure of the heterogeneous system. Directional entrograms provide more accurate descriptions of spatial order over different Cartesian directions. This study presents the development of the geological entropy metrics, a description of the toolbox, and examples of its applications in different datasets, including 2D and 3D gridded fields, representing a variety of heterogeneous environments at different scales, from pore-scale microtomography (μCT) images to aquifer analogues.
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spelling doaj.art-732a07f14112412e939acac8c116c1982023-11-23T11:12:15ZengMDPI AGGeosciences2076-32632022-05-0112520610.3390/geosciences12050206GEOENT: A Toolbox for Calculating Directional Geological EntropyDaniele Pedretti0Marco Bianchi1Dipartimento di Scienze della Terra, Università degli Studi di Milano, 20133 Milan, ItalyBritish Geological Survey, Keyworth, Nottingham NG12 5GG, UKGeological entropy is based on Shannon information entropy and measures order in the structure of a spatial random variable. Metrics have been defined to quantify geological entropy in multidimensional (2D and 3D) heterogeneous systems, for instance, porous and fractured geological media. This study introduces GEOENT, a toolbox that can efficiently be used to calculate geological entropy metrics for any kind of input-gridded field. Additionally, the definition of geological entropy metrics is updated to consider anisotropy in the structure of the heterogeneous system. Directional entrograms provide more accurate descriptions of spatial order over different Cartesian directions. This study presents the development of the geological entropy metrics, a description of the toolbox, and examples of its applications in different datasets, including 2D and 3D gridded fields, representing a variety of heterogeneous environments at different scales, from pore-scale microtomography (μCT) images to aquifer analogues.https://www.mdpi.com/2076-3263/12/5/206heterogeneityentropymathematical codesubsurfacespatial mappinginformation theory
spellingShingle Daniele Pedretti
Marco Bianchi
GEOENT: A Toolbox for Calculating Directional Geological Entropy
Geosciences
heterogeneity
entropy
mathematical code
subsurface
spatial mapping
information theory
title GEOENT: A Toolbox for Calculating Directional Geological Entropy
title_full GEOENT: A Toolbox for Calculating Directional Geological Entropy
title_fullStr GEOENT: A Toolbox for Calculating Directional Geological Entropy
title_full_unstemmed GEOENT: A Toolbox for Calculating Directional Geological Entropy
title_short GEOENT: A Toolbox for Calculating Directional Geological Entropy
title_sort geoent a toolbox for calculating directional geological entropy
topic heterogeneity
entropy
mathematical code
subsurface
spatial mapping
information theory
url https://www.mdpi.com/2076-3263/12/5/206
work_keys_str_mv AT danielepedretti geoentatoolboxforcalculatingdirectionalgeologicalentropy
AT marcobianchi geoentatoolboxforcalculatingdirectionalgeologicalentropy