Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Prefractal scaling of apparent soil moisture estimated from vertical planes of Vertisol pit images.
Year:2012
Research Areas
  • Mathematics,
  • Natural sciences and health sciences,
  • Earth sciences,
  • Soil science,
  • Agriculture
Information
Abstract
Image analysis could be a useful tool for investigating the spatial patterns of apparent soil moisture at multiple resolutions. The objectives of the present work were (i) to define apparent soil moisture patterns from vertical planes of Vertisol pit images and (ii) to describe the scaling of apparent soil moisture distribution using fractal parameters. Twelve soil pits (0.70 m long x 0.60 m width x 0.30 m depth) were excavated on a bare Mazic Pellic Vertisol. Six of them were excavated in April/2011 and six pits were established in May/2011 after three days of a moderate rainfall event. Digital photographs were taken from each Vertisol pit using a KodakTM digital camera. The mean image size was 1600 x 945 pixels with one physical pixel ? 373 ?m of the photographed soil pit. Each soil image was analyzed using two prefractal scaling exponents, box counting (capacity) dimension (DBC) and interface fractal dimension (Di), and three prefractal scaling coefficients, the total number of boxes intercepting the foreground pattern at a unit scale (A), fractal lacunarity at the unit scale (?1) and Shannon entropy at the unit scale (S1).
International
Si
Congress
E.G.U. 2012 9th General Assembly.
960
Place
Viena, Austria
Reviewers
Si
ISBN/ISSN
1029-7006
Start Date
22/04/2012
End Date
27/04/2012
From page
1
To page
1
Geophysical Research Abstracts Vol. 14
Participants
  • Autor: R. Cumbrera
  • Autor: Ana Maria Tarquis Alfonso (UPM)
  • Autor: G. Gascó
  • Autor: H. Millán
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Automatización en Señal y Comunicaciones (GASC)
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM)
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