2021-01-17T22:07:24Z
http://oa.upm.es/cgi/oai2
oai:oa.upm.es:20067
2016-04-21T22:22:43Z
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Topology of a percolating soil pore network.
Capa Morocho, M.
Ruiz Ramos, Margarita
Hapca, S.M.
Houston, A.
Tarquis Alfonso, Ana Maria
Agriculture
A connectivity function defined by the 3D-Euler number, is a topological indicator and can be related to hydraulic properties (Vogel and Roth, 2001). This study aims to develop connectivity Euler indexes as indicators of the ability of soils for fluid percolation. The starting point was a 3D grey image acquired by X-ray computed tomography of a soil at bulk density of 1.2 mg cm-3. This image was used in the simulation of 40000 particles following a directed random walk algorithms with 7 binarization thresholds. These data consisted of 7 files containing the simulated end points of the 40000 random walks, obtained in Ruiz-Ramos et al. (2010). MATLAB software was used for computing the frequency matrix of the number of particles arriving at every end point of the random walks and their 3D representation.
E.T.S.I. AgrÃ³nomos (UPM)
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
2012-04
info:eu-repo/semantics/conferenceObject
Presentation at Congress or Conference
Geophysical Research Abstracts | 9th EGU General Assembly | 22/04/2012 - 27/04/2012 |
PeerReviewed
application/pdf
eng
http://www.geophysical-research-abstracts.net/gra_volume_14.pdf
info:eu-repo/semantics/openAccess
http://oa.upm.es/20067/