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Kshitij Parajuli

Utah State University | Graduate Research Assistant

Subject Areas: Hydrology, Soil Physics

 Recent activity

ABSTRACT:

Soil properties are important for understanding soil and modeling process taking place throughout the soil profile. This dataset provides a detailed description of the soil profile including the soil texture, color, structure and root density within the soil pit excavated at each GAMUT weather station within the iUTAH network. In addition to soil information, the slope, aspect, vegetation, surface stone and rock content etc. for each station is also presented.​

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ABSTRACT:

The simplified evaporation experiment was simulated using HYDRUS 3D which numerically solves the Richard’s equation (Simunek et al., 2016). A three-dimensional evaporation process simulation (i.e., HYPROP apparatus) was performed for Millville silt loam with 40% coarse sandstone by volume. The soil hydraulic parameters for the Millville silt loam and coarse sandstone were determined by fitting the van Genuchten model to their measured WRC data. The initial condition was set to saturated water content for both soil and stone inclusions. The upper boundary condition was set as the temporally variable evaporation rate measured during the evaporation experiment. The bottom boundary condition was set as zero flux.

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ABSTRACT:

The simplified evaporation experiment was simulated using HYDRUS 3D which numerically solves the Richard’s equation (Simunek et al., 2016). A three-dimensional evaporation process simulation (i.e., HYPROP apparatus) was performed for Millville silt loam with 40% coarse sandstone by volume. The soil hydraulic parameters for the Millville silt loam and coarse sandstone were determined by fitting the van Genuchten model to their measured WRC data. The initial condition was set to saturated water content for both soil and stone inclusions. The upper boundary condition was set as the temporally variable evaporation rate measured during the evaporation experiment. The bottom boundary condition was set as zero flux.

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ABSTRACT:

We used the HYPROP (HYdraulic PROPerty analyzer, Decagon Devices Inc) device for the simplified evaporation method (SEM), which measures the WRC with simultaneous measurements of matric potential using two miniature tensiometers and sample average water content using mass balance to measure the stony soil water retention function. Mixtures of Millville silt loam with coarse sandstone and fine sandstone and mixtures of Wedron sand with pumice were evaluated considering six different volumetric stone contents (v =0, 0.05, 0.1, 0.2, 0.3, 0.4 ).

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Measurement of stony soil water retention curve using HYPROP
Created: March 14, 2017, 7:48 p.m.
Authors: Kshitij Parajuli · Scott B. Jones · Morteza Sadeghi

ABSTRACT:

We used the HYPROP (HYdraulic PROPerty analyzer, Decagon Devices Inc) device for the simplified evaporation method (SEM), which measures the WRC with simultaneous measurements of matric potential using two miniature tensiometers and sample average water content using mass balance to measure the stony soil water retention function. Mixtures of Millville silt loam with coarse sandstone and fine sandstone and mixtures of Wedron sand with pumice were evaluated considering six different volumetric stone contents (v =0, 0.05, 0.1, 0.2, 0.3, 0.4 ).

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Numerical Simulation of Evaporation Process in the Stony Soil
Created: March 14, 2017, 9:23 p.m.
Authors: Kshitij Parajuli · Scott B. Jones · Morteza Sadeghi

ABSTRACT:

The simplified evaporation experiment was simulated using HYDRUS 3D which numerically solves the Richard’s equation (Simunek et al., 2016). A three-dimensional evaporation process simulation (i.e., HYPROP apparatus) was performed for Millville silt loam with 40% coarse sandstone by volume. The soil hydraulic parameters for the Millville silt loam and coarse sandstone were determined by fitting the van Genuchten model to their measured WRC data. The initial condition was set to saturated water content for both soil and stone inclusions. The upper boundary condition was set as the temporally variable evaporation rate measured during the evaporation experiment. The bottom boundary condition was set as zero flux.

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Generic Generic
Numerical Simulation of Evaporation Process in Stony Soil
Created: March 16, 2017, 6:18 p.m.
Authors: Kshitij Parajuli · Scott B. Jones · Morteza Sadeghi

ABSTRACT:

The simplified evaporation experiment was simulated using HYDRUS 3D which numerically solves the Richard’s equation (Simunek et al., 2016). A three-dimensional evaporation process simulation (i.e., HYPROP apparatus) was performed for Millville silt loam with 40% coarse sandstone by volume. The soil hydraulic parameters for the Millville silt loam and coarse sandstone were determined by fitting the van Genuchten model to their measured WRC data. The initial condition was set to saturated water content for both soil and stone inclusions. The upper boundary condition was set as the temporally variable evaporation rate measured during the evaporation experiment. The bottom boundary condition was set as zero flux.

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Generic Generic
Soil Description for GAMUT Weather Stations
Created: July 26, 2017, 6:44 p.m.
Authors: Kshitij Parajuli · Scott B. Jones · John Lawley

ABSTRACT:

Soil properties are important for understanding soil and modeling process taking place throughout the soil profile. This dataset provides a detailed description of the soil profile including the soil texture, color, structure and root density within the soil pit excavated at each GAMUT weather station within the iUTAH network. In addition to soil information, the slope, aspect, vegetation, surface stone and rock content etc. for each station is also presented.​

Show More