Estimation of Unsaturated Soil Hydraulic Properties Using Analytical and Inverse Methods Based on Disc Infiltrometer Measurements

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BESHARAT SINA; HASHEMPOUR GISOO; Zeinalzadeh Kamran

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Journal: Iranian Journal of Soil and Water Research Year:2019 | Volume:50 | Issue:2 Page(s): 481-493

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Information Journal Paper

Title

Estimation of Unsaturated Soil Hydraulic Properties Using Analytical and Inverse Methods Based on Disc Infiltrometer Measurements

Author(s)

BESHARAT SINA | HASHEMPOUR GISOO | Zeinalzadeh Kamran | Issue Writer Certificate

Keywords

Disc infiltrometerQ2

Hydraulic conductivityQ1

HydrusQ2

Richards equationQ2

Wooding methodQ1

Abstract

Estimation and modeling of non-saturated hydraulic properties of the soil is an effective approach to accelerate and facilitate studies on the movement of water and salts in the soil. In this paper, an inverse solution estimation method was used to analyze the results obtained by disk infiltrometer tools. Also, Wooding analytical method and Hydrus-1D software were used to simulate infiltration values and hydraulic properties. In this regard, four lysimeters were used and infiltration experiments were carried out at suctions of 15, 6, 3 and 1 cm. Also, pressure data were recorded by four tensiometers installed in the lysimeters. Finally, the results of the inverse solution method were compared with the Wooding method. The results showed that the inverse solution method was generally in good agreement with the Wooding analysis method. The inverse solution method estimated the unsaturated Hydraulic conductivity values close to Wooding method at low suctions, but the estimated values were greater 12% than the Wooding method with increasing suctions.

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APA: Copy

BESHARAT, SINA, HASHEMPOUR, GISOO, & Zeinalzadeh, Kamran. (2019). Estimation of Unsaturated Soil Hydraulic Properties Using Analytical and Inverse Methods Based on Disc Infiltrometer Measurements. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 50(2 ), 481-493. SID. https://sid.ir/paper/225703/en

Vancouver: Copy

BESHARAT SINA, HASHEMPOUR GISOO, Zeinalzadeh Kamran. Estimation of Unsaturated Soil Hydraulic Properties Using Analytical and Inverse Methods Based on Disc Infiltrometer Measurements. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2019;50(2 ):481-493. Available from: https://sid.ir/paper/225703/en

IEEE: Copy

SINA BESHARAT, GISOO HASHEMPOUR, and Kamran Zeinalzadeh, “Estimation of Unsaturated Soil Hydraulic Properties Using Analytical and Inverse Methods Based on Disc Infiltrometer Measurements,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 50, no. 2 , pp. 481–493, 2019, [Online]. Available: https://sid.ir/paper/225703/en

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