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5 SUMMARIES OF THE POSTERS 20The pattern of space dependence in time series was explored with graphtheory. A set of spatially distributed rain stations defined graph vertices; ifthe Pearson correlation coefficient of the historic data for two stations werehigher than a significant limit we consider an edge between them. Cumulativedistribution of edges length exhibits a power law, suggesting a non-metricfractal behaviour.Title: Estimating soil hydraulic properties for upscaling field-scale models.Authors: O. Salazar, I. Wesstrom, A. Joel.Upscaling of field-scale hydrological models has been proposed to estimatethe watershed response. The use of these models has been limited in theselarge areas of land by the high spatial variability of saturated hydraulic conductivity(Ks). The aim of this study was to evaluate the feasibility of runningDRAINMOD field-scale model with Ks input resulting from ROSETTApedotransfer function model.Poster Session 2:Title: Quantifying a soil pore network in 3-d images: multifractal spectrumthrough wavelet approach.Authors: J. Grau.Knowledge on soil pore geometry is important for understanding soil processesas it controls the movement and storage of fluids on various scales.With the advent of modern non-destructive tomography techniques therehave been many attempts made to analyze pore space features mainly concentratingon the visualization of soil structure. Multifractal formalism or thewavelet transform have revealed as useful tools in these cases where highlycomplex and heterogeneous medium are studied. The field of 3D pore spaceanalysis opens a challenging opportunity to develop techniques for quantifyingand describe pore space properties. One of these quantifications canbe the maximum depth pore network (MD), analogous as the quantificationof the preferential flow paths. In this paper a variation of the wavelettransform modulo maxima (WTMM) method is presented. Based on a setof statistical measurements directly obtained from the Wavelet Analysis therange of scales to perform the multifractal analysis (MFA) of the MD is selected.Then WTMM is applied to determine the multifractal behaviour of3D images of soil samples with 45 mm resolution (250x250x250 voxels) withdifferent porosities and spatial arrangements.