Modeling Flow through the Vadose Zone Using the HYDRUS-1D Model

Soil Physics ◽  
2013 ◽  
pp. 357-408
Keyword(s):  
Vadose Zone ◽  
1D Model ◽  
Flow Through ◽  
Modeling Flow ◽  
Hydrus 1D

scholarly journals Effect of hysteresis on water flow in the vadose zone under natural boundary conditions, Siloam Village case study, South Africa

2017 ◽  
Vol 20 (1) ◽  
pp. 88-99 ◽  
Author(s):  
I. A. Arrey ◽  
J. O. Odiyo ◽  
R. Makungo ◽  
M. O. Kataka
Keyword(s):  
Boundary Conditions ◽  
Vadose Zone ◽  
Zone Model ◽  
Natural Boundary ◽  
One Dimensional ◽  
Equation Analysis ◽  
Richard's Equation ◽  
1D Model ◽  
Natural Boundary Conditions ◽  
Hydrus 1D

Abstract A one-dimensional vadose zone model was used to simulate flow under natural boundary conditions. The effects of hysteresis and temporal variability of meteorological conditions were evaluated. Simulations were performed in HYDRUS-1D code for the period April 2013–January 2014 (6601 hours) at three different locations in a delineated portion of the sub-quaternary catchment A80A of Nzhelele with different soil textures. Soil hydraulic characteristics were estimated in a Rosetta library dynamically linked to the HYDRUS-1D model which is based on the numerical solution of a one-dimensional Richard's equation. Analysis of the simulation results suggests that ignoring hysteresis for soils of similar textural class does not lead to any significant deviation of the model predicted soil moisture, unlike for soils with different textural classes.

Hydrus-1D model for simulating water flow through paddy soils under alternate wetting and drying irrigation practice

2019 ◽  
Vol 18 (1) ◽  
pp. 73-85 ◽  
Author(s):  
Shashank Shekhar ◽  
Damodhara Rao Mailapalli ◽  
Narendra Singh Raghuwanshi ◽  
Bhabani Sankar Das
Keyword(s):  
Water Flow ◽  
Paddy Soils ◽  
Wetting And Drying ◽  
Alternate Wetting And Drying ◽  
Irrigation Practice ◽  
1D Model ◽  
Flow Through ◽  
Hydrus 1D

Interfacing FORTAN Code with Python: an example for the Hydrus-1D model

2020 ◽  
Author(s):  
Raoul Collenteur ◽  
Matevz Vremec ◽  
Giuseppe Brunetti
Keyword(s):  
Programming Languages ◽  
Vadose Zone ◽  
Flow And Transport ◽  
Modeling Process ◽  
Dimensional Modeling ◽  
Fortran Code ◽  
Specific Analysis ◽  
1D Model ◽  
Python Package ◽  
Hydrus 1D

<p>HYDRUS-1D is a popular software suite for one-dimensional modeling of flow and transport through the vadose zone [1]. Models can be handled through the Graphical User Interface (GUI), made freely available by the original authors (https://www.pc-progress.com/). As the program is file-based, the HYDRUS-1D GUI already ensures a certain degree of reproducibility, as these files contain all information about a model. The original FORTRAN code of the HYDRUS-1D model is also made available and is used in many publications to perform more complicated analysis of flow and transport through the unsaturated zone. For each of these publications new code was programmed to change the input files and perform a specific analysis. Being a popular hydrological model, it seems only logical to start reusing such code and structurally develop its capabilities. In the presentation, we introduce Phydrus, an open source Python package to create, optimize and visualize HYDRUS-1D models. Python scripts or Jupyter Notebooks are used for all steps of the modeling process, documenting the entire workflow and ensuring reproducibility of the analysis. Connecting HYRDUS-1D to Python makes it easier to perform repetitive tasks on models, and potentially opens up a whole new set of possibilities and applications. While introducing Phydrus, this presentation will also focus on the process of creating the Python Package and why we think it is worthwhile for the hydrologic community to interface existing (older) code with newer programming languages popular in the hydrological scientific community.</p><p><strong>References<br></strong>[1] Šimůnek, J. and M. Th. van Genuchten (2008) Modeling nonequilibrium flow and transport with HYDRUS, Vadose Zone Journal.</p>

scholarly journals Conceptual Models of Flow through a Heterogeneous, Layered Vadose Zone under a Percolation Pond

2004 ◽  
Author(s):  
Kristine Baker ◽  
Larry Hull ◽  
Jesse Bennett ◽  
Shannon Ansley ◽  
Gail Heath
Keyword(s):  
Vadose Zone ◽  
Conceptual Models ◽  
Flow Through
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