. "Gribb, M. M." . . "8"^^ . . "RIV/60460709:41210/03:00005381!RIV/2004/MSM/412104/N" . . "[E848BD74A167]" . . . . . . "Cone permeameter;Guelph permeameter; falling head; multistep outflow; pressure plate, unsaturated soil hydraulic properties; inverse solution; field studies"@en . "80-02-01586-X" . "Using several test methods, unsaturated and saturated soil hydraulic properties were determined adn compared for three uniform sandy soils at adjacent field sites. Drying soil-water retention curves were measured on undisturbed soil specimens using a pressure plate apparatus, and wtting soil-water retention curves of disturbed specimens were measured via capillary rise experiments in the laboratory. The saturated hydraulic conductivities (Ks) were measured in situ with a Guelph in -situ cone permeameterand in the laboratory with falling hed tests. Finally, to analyze transient flow data from in - situ cone permeameter and laboratry multistep outflow/inflow experiments, parameter optimization techniques were used to simultaneously estimate the drying a nd wetting soil-water retention and hydraulic conductivity curves. Ks values from all test methods were within an order of magnitude of each other at each site and, as expected, trended with bulk density. The Quelph permeameter generally yielded the high" . "\u00DAstav pro hydrodynamiku AV \u010CR" . "A comparison of measurement techniques for determining unsaturated soil hydraulic properties" . . "41210" . "RIV/60460709:41210/03:00005381" . "A comparison of measurement techniques for determining unsaturated soil hydraulic properties" . "2003-10-15+02:00"^^ . "Using several test methods, unsaturated and saturated soil hydraulic properties were determined adn compared for three uniform sandy soils at adjacent field sites. Drying soil-water retention curves were measured on undisturbed soil specimens using a pressure plate apparatus, and wtting soil-water retention curves of disturbed specimens were measured via capillary rise experiments in the laboratory. The saturated hydraulic conductivities (Ks) were measured in situ with a Guelph in -situ cone permeameterand in the laboratory with falling hed tests. Finally, to analyze transient flow data from in - situ cone permeameter and laboratry multistep outflow/inflow experiments, parameter optimization techniques were used to simultaneously estimate the drying a nd wetting soil-water retention and hydraulic conductivity curves. Ks values from all test methods were within an order of magnitude of each other at each site and, as expected, trended with bulk density. The Quelph permeameter generally yielded the high"@en . "A comparison of measurement techniques for determining unsaturated soil hydraulic properties"@en . . "A comparison of measurement techniques for determining unsaturated soil hydraulic properties"@en . . . . . "0"^^ . "Kode\u0161ov\u00E1, Radka" . "0"^^ . "2"^^ . . "1"^^ . "Praha" . "Praha" . "596817" . . "Sborn\u00EDk - Hydrologie p\u016Fdy v mal\u00E9m povod\u00ED" . "41-48" . . . . . "Z(MSM 412100004)" .