An improved solution for the infiltration advance problem in irrigation hydraulics
Article
Article Title | An improved solution for the infiltration advance problem in irrigation hydraulics |
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ERA Journal ID | 3502 |
Article Category | Article |
Authors | Cook, F. J. (Author), Knight, J. H. (Author), Doble, R. C. (Author) and Raine, S. R. (Author) |
Journal Title | Irrigation Science |
Journal Citation | 31 (5), pp. 1113-1123 |
Number of Pages | 11 |
Year | 2013 |
Place of Publication | Germany |
ISSN | 0342-7188 |
1432-1319 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00271-012-0392-7 |
Web Address (URL) | https://link.springer.com/article/10.1007/s00271-012-0392-7 |
Abstract | The irrigation advance problem in irrigation hydraulics has been spread across the engineering and soil science literature over a number of decades. The Lewis-Milne framework has been used extensively, but one problem has been to find a suitable infiltration equation. The infiltration advance solutions of Philip and Farrell, and Collis-George and Freebairn are compared to a new solution based on the linear soil infiltration equation. It is shown that the linear soil solution is able to give similar results to the Philip and Farrell solution at early stages of infiltration when this is valid, and the Collis-George and Freebairn solution at longer times when this is valid. The linear soil infiltration advance solution presented here is the first using physically meaningful parameters which is able to give adequate infiltration and advance behaviour over all time scales. To further test the linear soil concept, we inversely fit irrigation advance data to get the sorptivity, saturated hydraulic conductivity and infiltration rate behaviour of the soil using all three infiltration equations. The linear soil is shown to give the best fit for the infiltration behaviour to the measured results with an average r2 of 0.98 compared to 0.84 for Philip and Farrell and 0.77 for Collis-George and Freebairn. The linear soil model was also the best fit using other statistical tests such as RMSE and RSR. |
Keywords | infiltration rate; measured results; saturated hydraulic conductivity; soil infiltration; soil model; soil science; soil solutions; time-scales |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401199. Environmental engineering not elsewhere classified |
370704. Surface water hydrology | |
300201. Agricultural hydrology | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia |
Griffith University | |
National Centre for Engineering in Agriculture | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q18z9/an-improved-solution-for-the-infiltration-advance-problem-in-irrigation-hydraulics
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