Ponencias en congresos:
Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns
Multifractal features of 3-D macropore structures of discretized X-ray CT of undisturbed soil columns
Año:2008
Áreas de investigación
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Química, -
Agricultura
Datos
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Descripción
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| 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. | |
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Internacional
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Si |
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Nombre congreso
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2nd International Fraunhofer Workshop "3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties" |
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Tipo de participación
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960 |
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Lugar del congreso
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Fraunhofer ITWM, Kaiserslautern, Alemania |
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Revisores
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ISBN o ISSN
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DOI
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Fecha inicio congreso
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04/11/2008 |
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Fecha fin congreso
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05/11/2008 |
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Título de las actas
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Participantes
- Participante: Andrey Guber (USDA-BARC-EMSL, EEUU)
- Participante: Makus Tuller (Universidad de Arizona, EEUU)
- Autor: Francisco Javier Caniego Monreal (UPM)
- Autor: Miguel Angel Martin Martin (UPM)
- Participante: Yakov Pachepsky (USDA-BARC-EMSL, EEUU)
- Autor: Fernando San Jose Martinez (UPM)
- Autor: Carlos Garcia-Gutierrez Baez (UPM)
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
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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