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|Created:||Jul 07, 2020 at 8:59 p.m.|
|Last updated:|| Aug 27, 2020 at 8:48 p.m.
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HYDRUS 1D is an open source, Windows-based software package for simulation of of one-dimensional water movement through variably saturated porous media. The model solves Richards equation for increments of soil depth with thickness and hydrologic characteristics specified by the user. Soil hydrologic characteristics can be assigned based on van Genuchten parameters provided within HYDRUS based on soil texture, or can be specified by the user. The model incorporates a sink term for plant water uptake and provides different options for specifying rooting depth and growth rate. The model provides water content and flux values for observation points at depths specified by the user. The program has a graphical user interface for modifying inputs and visualizing model results, but it is also possible to modify model inputs and visualize outputs by working with the HYDRUS 1D text files, using a program such as R. Using R to modify model input files allows for running many model scenarios in a loop, which streamlines analysis on complex sets of model runs.
README.txt Citation: Simunek, J., M. Sejna, M. T. van Genuchten (2020). Hydrus 1D - archive of version 4.16.0110, replicated from: Simunek, J., M. Sejna, and M. Th. van Genuchten. 2019. Hydrus-1D for Windows, Version 4.xx. https://www.pc-progress.com/en/Default.aspx?hydrus-1d, accessed 7/22/2020, replicated in HydroShare at: http://dx.doi.org/10.4211/hs.d24921ba081d431e80685bf177a0840f License Hydrus 1D version 4.16.0110. Copyright (C) 2019. Šimůnek, J., M. Šejna, and M. Th. van Genuchten. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/gpl-3.0.txt. Note: This HydroShare resource redistributes software following the requirements of the GNU GPLv3 license^1, complete with the computational module (file name: Hydrus1D_4.16.0110.exe) and the source code (file name: H1D_Src.zip). However, please refer to the full text of the authors’ website under the section “Source Code”^2, in particular being aware of the following: “Note from the authors: Please be aware that the source code posted here (in 2009) does not correspond exactly (is not fully compatible) with the latest version of the computational module in HYDRUS-1D and may differ in some (small) details. We frequently make changes and modifications to our version of the code (reflecting many research projects we have been working on since 2009) and these changes and modifications are not included in the posted code (which was thoroughly cleaned of unneeded code before being posted; we currently do not have plans to repeat that effort in the near future).” ^1: http://www.gnu.org/licenses/gpl-3.0.txt ^2: https://www.pc-progress.com/en/Default.aspx?H1D-description#k8 Content Documentation This resource contains three top-level folders with the following content: “ExecutableAndManual” folder Manual 4.16 (file name: HYDRUS1D-4.16.pdf) is to be used in conjunction with the executable (file name: Hydrus1D_4.16.0110.exe). “License” folder A copy of the GNU GPLv3 as required by the software license. “SourceCodeAndManual” folder: Manual 4.08 (file name: HYDRUS1D-4.08.pdf) is to be used in conjunction with the source code (file name: H1D_Src.zip). In addition to the two manuals noted above, users should consult the authors’ webpage for Hydrus-1D full documentation, here: https://www.pc-progress.com/en/Default.aspx?hydrus-1d Keywords All keywords selected from the USDA National Agricultural Library Thesaurus on July 7, 2020. https://agclass.nal.usda.gov/agt.shtml
|The content of this resource is derived from||replicated from: Šimůnek, J., M. Šejna, and M. Th. van Genuchten. 2019. Hydrus-1D for Windows, Version 4.xx. https://www.pc-progress.com/en/Default.aspx?hydrus-1d|
|This resource is described by||Šimůnek, J., M. Th. van Genuchten, and M. Šejna, Development and applications of the HYDRUS and STANMOD software packages, and related codes, Vadose Zone Journal, doi:10.2136/VZJ2007.0077, Special Issue ”Vadose Zone Modeling”, 7(2), 587-600, 2008.|
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This resource is shared under the GNU GPLv3 license.http://www.gnu.org/licenses/gpl-3.0.txt