Detailed Characterization of Solute Transport in a Heterogeneous Field Soil
Fernando Garridoa,
Masoud Ghodratib,
Chris G. Campbellb and
Michael Chendorainb
a Centro de Ciencias Medioambientales, Consejo Superior de Investigaciones Científicas, Serrano 115-dup. E-28006-Madrid, Spain
b Ecosystem Sciences Division, Dep. of Environmental Science Policy and Management, Univ. of California, 151 Hilgard Hall, Berkeley, CA 94720-3110

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Fig. 1. Schematic plot design and instrumentation. Fiber optic miniprobes (FOMPs) and time domain reflectometry (TDR) are identified by their respective numbers at each depth level
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Fig. 2. Plot of the mass recoveries of the fiber optic miniprobes (FOMPs) at different spatial locations in the plot
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Fig. 3. Breakthrough curves (BTCs) measured by the fiber optic miniprobes (FOMPs) at the 0.10-m depth for a 20-mm pulse of 4 g/L pyranine. MR = mass recovery
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Fig. 4. Breakthrough curves (BTCs) measured by the fiber optic miniprobes (FOMPs) at the 0.20-m depth for a 20-mm pulse of 4 g/L pyranine. MR = mass recovery
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Fig. 5. Cumulative breakthrough curves (BTCs) of conservative CaCl2 measured during the calibration of the time domain reflectometry (TDR) probes
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Fig. 6. Breakthrough curves (BTCs) measured by the time domain reflectometry (TDR) probes at the 0.10-m depth for a 20-mm pulse of 4 g/L pyranine. MR = mass recovery
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Fig. 7. Breakthrough curves (BTCs) measured by the time domain reflectometry (TDR) probes at the 0.20-m depth for a 20-mm pulse of 4 g/L pyranine. MR = mass recovery
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Fig. 8. Response measured by the 0.05-m-long time domain reflectometry (TDR) probes inserted into the first 50 mm of the soil horizon
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Fig. 9. The bimodal convective lognormal transfer function (CLT) model fitted to the four time domain reflectometry (TDR) probes at the 0.10-m depth in the soil
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Copyright © 2001 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.