Memorias de investigación
Ponencias en congresos:
Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns
Año:2008
Áreas de investigación
  • Química,
  • Agricultura
Datos
Descripción
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.
Internacional
Si
Nombre congreso
2nd International Fraunhofer Workshop "3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties"
Tipo de participación
960
Lugar del congreso
Fraunhofer ITWM, Kaiserslautern, Alemania
Revisores
Si
ISBN o ISSN
DOI
Fecha inicio congreso
04/11/2008
Fecha fin congreso
05/11/2008
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Hasta la página
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Título de las actas
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fractales y Aplicaciones en Ciencias del Suelo y Medioambientales (PEDOFRACT)
  • Departamento: Matemática Aplicada a la Ingeniería Agronómica