Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation
Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the opt...
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| Autor*in: |
F. Soroush [verfasserIn] B. Mostafazadeh-Fard [verfasserIn] S. F. Mousavi [verfasserIn] F. Abbasi [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Persisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: علوم آب و خاک - Isfahan University of Technology, 2020, 23(2019), 1, Seite 367-377 |
|---|---|
| Übergeordnetes Werk: |
volume:23 ; year:2019 ; number:1 ; pages:367-377 |
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DOAJ06915709X |
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| 520 | |a Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. | ||
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(DE-627)DOAJ06915709X (DE-599)DOAJ44872374e99541d3abe21774c78e9526 DE-627 ger DE-627 rakwb per S1-972 F. Soroush verfasserin aut Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. surface irrigation evaluation numerical simulation post-irrigation volume balance Agriculture S Agriculture (General) B. Mostafazadeh-Fard verfasserin aut S. F. Mousavi verfasserin aut F. Abbasi verfasserin aut In علوم آب و خاک Isfahan University of Technology, 2020 23(2019), 1, Seite 367-377 (DE-627)DOAJ000034525 24765554 nnns volume:23 year:2019 number:1 pages:367-377 https://doaj.org/article/44872374e99541d3abe21774c78e9526 kostenfrei http://jstnar.iut.ac.ir/article-1-3405-en.html kostenfrei https://doaj.org/toc/2476-3594 Journal toc kostenfrei https://doaj.org/toc/2476-5554 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA AR 23 2019 1 367-377 |
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(DE-627)DOAJ06915709X (DE-599)DOAJ44872374e99541d3abe21774c78e9526 DE-627 ger DE-627 rakwb per S1-972 F. Soroush verfasserin aut Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. surface irrigation evaluation numerical simulation post-irrigation volume balance Agriculture S Agriculture (General) B. Mostafazadeh-Fard verfasserin aut S. F. Mousavi verfasserin aut F. Abbasi verfasserin aut In علوم آب و خاک Isfahan University of Technology, 2020 23(2019), 1, Seite 367-377 (DE-627)DOAJ000034525 24765554 nnns volume:23 year:2019 number:1 pages:367-377 https://doaj.org/article/44872374e99541d3abe21774c78e9526 kostenfrei http://jstnar.iut.ac.ir/article-1-3405-en.html kostenfrei https://doaj.org/toc/2476-3594 Journal toc kostenfrei https://doaj.org/toc/2476-5554 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA AR 23 2019 1 367-377 |
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(DE-627)DOAJ06915709X (DE-599)DOAJ44872374e99541d3abe21774c78e9526 DE-627 ger DE-627 rakwb per S1-972 F. Soroush verfasserin aut Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. surface irrigation evaluation numerical simulation post-irrigation volume balance Agriculture S Agriculture (General) B. Mostafazadeh-Fard verfasserin aut S. F. Mousavi verfasserin aut F. Abbasi verfasserin aut In علوم آب و خاک Isfahan University of Technology, 2020 23(2019), 1, Seite 367-377 (DE-627)DOAJ000034525 24765554 nnns volume:23 year:2019 number:1 pages:367-377 https://doaj.org/article/44872374e99541d3abe21774c78e9526 kostenfrei http://jstnar.iut.ac.ir/article-1-3405-en.html kostenfrei https://doaj.org/toc/2476-3594 Journal toc kostenfrei https://doaj.org/toc/2476-5554 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA AR 23 2019 1 367-377 |
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Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation |
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F. Soroush |
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علوم آب و خاک |
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علوم آب و خاک |
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2019 |
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F. Soroush B. Mostafazadeh-Fard S. F. Mousavi F. Abbasi |
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23 |
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S1-972 |
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Elektronische Aufsätze |
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F. Soroush |
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verfasserin |
| title_sort |
comparison of two-point and two-time methods for estimating the infiltration parameters in meandering furrow irrigation |
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S1-972 |
| title_auth |
Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation |
| abstract |
Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. |
| abstractGer |
Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. |
| abstract_unstemmed |
Infiltration is the most important characteristic in the design and management of any surface irrigation system. Since the hydraulic of flow in meandering furrows is different from the standard furrows, the accuracy of infiltration function parameter estimation methods should be examined for the optimal design and management of meandering furrow irrigation. The main objective of this study was to compare Elliot and Walker’s two-point and two-time methods for estimating the empirical infiltration function parameters of meandering furrow irrigation using four sets of field data. The estimated infiltration functions, as obtained by the two methods, were validated by performing the unsteady flow simulations and using the Slow-change/slow-flow (SC/SF) model. The results showed that Elliot and Walker prediction of the advance trajectories (with a mean RMSE of 0.68 minutes) was comparable to the two-time method (with an average RMSE of 0.66 min). The Nash–Sutcliffe efficiency coefficient for the simulated outflow hydrograph by the two-time and two-point methods was 0.89 and 0.50, respectively, indicating the excellent predictive power of the two-times method. In addition, the two-time method predicted the total volume of infiltration with the less relative error (-1.5%), in comparison to the two-point method (-47.2%). Therefore, the use of post-advance data (such as a two-time method) for infiltration function parameters estimation improves the flow simulation in the meandering furrows. |
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Comparison of Two-point and Two-Time Methods for Estimating the Infiltration Parameters in Meandering Furrow Irrigation |
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