Poozan, Mohammad Taher (2019) Application of Scaling in Estimating Infiltration Parameters in Surface Irrigation. Masters thesis, university of zabol.
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Abstract
One of the essential information which is necessary to design an efficient irrigation system is knowledge of the characteristics of water infiltration into the soil. Determining of spatial variability in the soil infiltration process despite of complications, is one of the most important prerequisites to achieve precision agriculture. In recent years, scaling has been used to express the dynamics of soil water and to reduce the required measurements. In this study, a scaling method for predicting infiltration is presented that calculates infiltration properties in real time using the minimum field data (i.e. a reference infiltration curve and a measurement time) and for the different kind of soils. In the new method, the scale factor (Fs) for each infiltration equation was equaled to the infiltration depth after the specified time (ts). The data were achieved from 22 infiltration experiments by using double ring in campus filed of university of Zabol. The root mean square error (RMSE), coefficient of determination (R2) and mean error deviation (MBE) were used to evaluate the accuracy of the proposed method in order to estimating cumulative infiltration. A new method was adopted to scaling Philip's equation and was compared with previous Philip equation scaling methods as sorptivity coefficient (
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Infiltration, spatial variability, Kostiakov- Lewis Equation , Philip Equation, Scaling |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 04 Dec 2019 09:11 |
| Last Modified: | 04 Dec 2019 09:11 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/2616 |
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