. "Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling" . "4"^^ . . "4" . "[55FC3AF54841]" . "35" . . "http://www.scielo.br/scielo.php?pid=S0100-06832011000400016&script=sci_arttext" . . "BR - Brazilsk\u00E1 federativn\u00ED republika" . "Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling"@en . . . . . . . . "0100-0683" . . "RIV/68407700:21110/11:00184046!RIV12-MSM-21110___" . . . . . "193834" . . . . . . "Dohnal, Michal" . "RIV/68407700:21110/11:00184046" . "Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling" . "A method for determining soil hydraulic properties of a weathered tropical soil (Oxisol) using a medium-sized column with undisturbed soil is presented. The method was used to determine fitting parameters of the water retention curve and hydraulic conductivity functions of a soil column in support of a pesticide leaching study. Column was examined by computed tomography. The experiment was based on tension infiltration into the soil column with free outflow at the lower end. Water flow through the soil core was mathematically modeled using a computer code that solves the one-dimensional Richards equation. The inverse modeling produced very good agreement between model outputs and measured flux and pressure head data for the relatively homogeneous column. The moisture content at a given pressure from the retention curve measured directly in small soil samples was lower than that obtained through parameter optimization based on experiments using a medium-sized undisturbed soil column." . "11"^^ . "Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling"@en . . "Ray, C." . "A method for determining soil hydraulic properties of a weathered tropical soil (Oxisol) using a medium-sized column with undisturbed soil is presented. The method was used to determine fitting parameters of the water retention curve and hydraulic conductivity functions of a soil column in support of a pesticide leaching study. Column was examined by computed tomography. The experiment was based on tension infiltration into the soil column with free outflow at the lower end. Water flow through the soil core was mathematically modeled using a computer code that solves the one-dimensional Richards equation. The inverse modeling produced very good agreement between model outputs and measured flux and pressure head data for the relatively homogeneous column. The moisture content at a given pressure from the retention curve measured directly in small soil samples was lower than that obtained through parameter optimization based on experiments using a medium-sized undisturbed soil column."@en . "Revista Brasileira de Ci\u00EAncia do Solo" . "21110" . . "000295854500016" . "Sobotkov\u00E1, Martina" . "P(GA103/08/1552), S" . . "Sn\u011Bhota, Michal" . "DISC INFILTROMETER; HETEROGENEOUS SOIL; ENTRAPPED AIR; STEADY-STATE; CONDUCTIVITY; INFILTRATION; FLOW; TOMOGRAPHY; TRANSPORT; EQUATION"@en . "3"^^ . . .