caa a22 4500 445814896 CHVBK 20180317145223.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10040-011-0706-5 doi (NATIONALLICENCE)springer-10.1007/s10040-011-0706-5 Quantitative comparison of impeller-flowmeter and particle-size-distribution techniques for the characterization of hydraulic conductivity variability [Elektronische Daten] [Marco Barahona-Palomo, Monica Riva, Xavier Sanchez-Vila, Enric Vazquez-Sune, Alberto Guadagnini] Comparaison quantitative débitmétrie micromoulinet et distribution granulométrique pour caractériser la variabilité de la conductivité hydraulique Hydraulic conductivities associated with measurement scale of the order of 10-1m and collected during an extensive field campaign near Tübingen, Germany, are analyzed. Estimates are provided at coinciding locations in the system using: (1) the empirical Kozeny-Carman formulation, providing conductivity values, K GS, based on particle-size distribution, and (2) borehole impeller-type flowmeter tests, which infer conductivity, K FM, from measurements of vertical flows within a borehole. Correlation between the two sets of estimates is virtually absent. However, statistics of the natural logarithm of K GS and K FM at the site are similar in terms of mean values (averages of ln K GS being slightly smaller) and differ in terms of variogram ranges and sample variances. This is consistent with the fact that the two types of estimates can be associated with different (albeit comparable) measurement (support) scales. It also matches published results on interpretations of variability of geostatistical descriptors of hydraulic parameters on multiple observation scales. The analysis strengthens the idea that hydraulic conductivity values and associated key geostatistical descriptors inferred from different methodologies and at similar observation scales (of the order of tens of cm) are not readily comparable and should not be embedded blindly into a flow (and eventually transport) prediction model. Springer-Verlag, 2011 Hydraulic properties nationallicence Geostatistics nationallicence Grain-size analysis nationallicence Borehole flowmeter nationallicence Hydraulic conductivity nationallicence Barahona-Palomo Marco Hydrogeology Group, Department of Geosciences, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18, 08034, Barcelona, Spain aut Riva Monica Dipartimento di Ingegneria Idraulica, Ambientale, Infrastrutture Viarie, Rilevamento (DIIAR), Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy aut Sanchez-Vila Xavier Hydrogeology Group, Dept. of Geotechnical Engineering and Geosciences, Universitat Politecnica de Catalunya-Barcelona TECH, Jordi Girona 31, 08034, Barcelona, Spain aut Vazquez-Sune Enric Hydrogeology Group, Department of Geosciences, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18, 08034, Barcelona, Spain aut Guadagnini Alberto Dipartimento di Ingegneria Idraulica, Ambientale, Infrastrutture Viarie, Rilevamento (DIIAR), Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy aut Hydrogeology Journal Springer-Verlag 19/3(2011-05-01), 603-612 1431-2174 19:3<603 2011 19 10040 https://doi.org/10.1007/s10040-011-0706-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-011-0706-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Barahona-Palomo Marco Hydrogeology Group, Department of Geosciences, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18, 08034, Barcelona, Spain aut NATIONALLICENCE 700 1- Riva Monica Dipartimento di Ingegneria Idraulica, Ambientale, Infrastrutture Viarie, Rilevamento (DIIAR), Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy aut NATIONALLICENCE 700 1- Sanchez-Vila Xavier Hydrogeology Group, Dept. of Geotechnical Engineering and Geosciences, Universitat Politecnica de Catalunya-Barcelona TECH, Jordi Girona 31, 08034, Barcelona, Spain aut NATIONALLICENCE 700 1- Vazquez-Sune Enric Hydrogeology Group, Department of Geosciences, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18, 08034, Barcelona, Spain aut NATIONALLICENCE 700 1- Guadagnini Alberto Dipartimento di Ingegneria Idraulica, Ambientale, Infrastrutture Viarie, Rilevamento (DIIAR), Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/3(2011-05-01), 603-612 1431-2174 19:3<603 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer