Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns

Martin Martin, Miguel Angel and San Jose Martinez, Fernando and Caniego Monreal, Francisco and Tuller, Markus and Guber, Andrey and Pachepsky, Yakov and García-Gutiérrez Baez, Carlos (2008). Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns. In: "2nd International Fraunhofer Workshop on "3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties"", 04/11/2008-05/11/2008, Kaiserslautern, Alemania.

Description

Title: Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns
Author/s:
  • Martin Martin, Miguel Angel
  • San Jose Martinez, Fernando
  • Caniego Monreal, Francisco
  • Tuller, Markus
  • Guber, Andrey
  • Pachepsky, Yakov
  • García-Gutiérrez Baez, Carlos
Item Type: Presentation at Congress or Conference (Poster)
Event Title: 2nd International Fraunhofer Workshop on "3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties"
Event Dates: 04/11/2008-05/11/2008
Event Location: Kaiserslautern, Alemania
Title of Book: Poster de 2nd International Fraunhofer Workshop on "3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties"
Date: 2008
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The objective of this work was to develop the multifractal description of soil porosity values (2-D sectional porosities) as a function of depth with data from binarized 2-D images that were obtained from X-ray CT scans of 12 water-saturated 20 cm-long soil columns with diameters of 7.5 cm. A reconstruction algorithm was applied to convert the X-ray CT data into a stack of 1480 grayscale digital images with a voxel resolution of 110 microns and a cross-sectional size of 690x690 pixels. The series corresponding to the percentage of void space of the sectional binarized images were recorded. These series of depth-dependent macroporosity values exhibited a well defined multifractal structure that was represented by the singularity and the Rényi spectra. We also parameterized the memory, or long range dependencies, in these series using the Hurst exponent and the multifractal model.

More information

Item ID: 3276
DC Identifier: http://oa.upm.es/3276/
OAI Identifier: oai:oa.upm.es:3276
Deposited by: Memoria Investigacion
Deposited on: 16 Jul 2010 11:05
Last Modified: 20 Apr 2016 12:47
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