Evaluation of methods for determining infiltration parameters from irrigation advance data

Khatri, Kanya L.; Smith, R. J.

doi:10.1002/ird.198

Cited by 35 publications

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“…The quest to extract the maximum information on soil infiltration from a minimum possible quantity of field advance data is of enormous importance, particularly for the automation of surface irrigation using real time control (Oyonarte et al, 2002). The greatest limitation of the most of the existing infiltration methods is that they are data intensive and none of them is entirely suitable for use in real time control (Khatri and Smith, 2005b). The high data requirement is a major hindrance to the implementation of any form of real-time control.…”

Section: Introductionmentioning

confidence: 99%

Toward a simple real‐time control system for efficient management of furrow irrigation

Khatri

Smith

2007

Irrigation and Drainage

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A simple real-time control system for furrow irrigation is proposed that: predicts the infiltration characteristic of the soil in real time using data measured during an irrigation event, simulates the irrigation, and determines the optimum time to cut-off for that irrigation.The basis of the system is a new method for estimating the soil infiltration characteristic under furrow irrigation, developed previously by the authors, that uses a model infiltration curve, and a scaling process to predict the infiltration characteristic for each furrow and each irrigation event. Using the new method, infiltration parameters were calculated for two different fields. The SIRMOD simulation model was then used to simulate irrigation performance under different model strategies. These were framed to assess the feasibility of and demonstrate the gains from the real time control strategy. The simulation results showed that the system is feasible. The scaled infiltration gave predictions of the irrigation performance comparable to the measured performance, clearly establishing the suitability of respectively, indicating the scale of benefits that can be achieved in the irrigation sector by implementing simple real-time control.

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Section: Introductionmentioning

confidence: 99%

Toward a simple real‐time control system for efficient management of furrow irrigation

Khatri

Smith

2007

Irrigation and Drainage

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“…Several methods have been reported for the estimation of infiltration parameters. Khatri and Smith (2005) used six different methods to estimate infiltration parameters for furrow irrigation systems. These methods included: the two-point method of Elliott and Walker (1982), the computer model INFILT (McClymont and Smith, 1996), the method proposed by Upadhyaya and Raghuwanshi (1999), Valiantzas' one-point method (Valiantzas et al, 2001), Shepard's one-point method (Shepard et al, 1993), and a simple linear infiltration function (Austin and Prendergast, 1997;Mailhol et al, 1997).…”

Section: Resumen Evaluación De Modelos Para Estimar La Infiltración Ymentioning

confidence: 99%

Evaluating models for the estimation of furrow irrigation infiltration and roughness

Etedali

Ebrahimian

Abbasi

et al. 1970

Span. j. agric. res.

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IntroductionThe infiltration parameters and the Manning roughness coeff icient are critical variables in the design and evaluation of surface irrigation systems (Harun-urRashid, 1990;Valiantzas, 1994;Mailapalli et al., 2008;Rodríguez and Martos, 2010 AbstractSeveral methods have been proposed for estimating infiltration and roughness parameters in surface irrigation using mathematical models. The EVALUE, SIPAR_ID, and INFILT models were used in this work. The EVALUE model uses a direct solution procedure, whereas the other two models are based on the inverse solution approach. The objective of this study is to evaluate the capacity of these models to estimate the Kostiakov infiltration parameters and the Manning roughness coefficient in furrow irrigation. Twelve data sets corresponding to blocked-end and free draining furrows were used in this work. Using the estimated parameters and the SIRMOD irrigation simulation software, the total infiltrated volume and recession time were predicted to evaluate the accuracy of the mathematical models. The EVALUE and SIPAR_ID models provided the best performance, with EVALUE performing better than SIPAR_ID for estimating the Manning roughness coefficient. The INFILT model provided lower accuracy in cut-back irrigation than in standard irrigation. The performance of SIPAR_ID and INFILT in blocked-end and free draining furrows was similar.Additional key words: EVALUE; furrow irrigation; INFILT; infiltration parameters; Manning roughness coefficient; SIPAR_ID. Resumen Evaluación de modelos para estimar la infiltración y rugosidad del riego por surcosEn el riego por superficie se han propuesto varios métodos basados en modelos matemáticos para estimar los parámetros de infiltración y rugosidad. En este trabajo se han utilizado los modelos EVALUE, SIPAR_ID e INFILT. El modelo EVALUE utiliza un procedimiento de solución directa, mientras que los otros dos se basan en un enfoque de solución inversa. El objetivo de este estudio fue evaluar la capacidad de estos modelos para estimar los parámetros de infiltración de Kostiakov y el coeficiente de rugosidad de Manning en el riego por surcos. Se utilizaron en doce evaluaciones de riego por surcos, bien bloqueados en el extremo o bien con desagüe libre. Utilizando los parámetros estimados y el software de simulación de riego por gravedad SIRMOD, se predijeron el volumen total infiltrado y el tiempo de receso para evaluar la precisión de los modelos matemáticos. Los modelos EVALUE y SIPAR_ID proporcionaron el mejor rendimiento, dando mejores resultados EVALUE que SIPAR_ID para estimar el coeficiente de rugosidad de Manning. El modelo INFILT fue menos preciso en el riego con recorte de caudal que en el riego estándar. El rendimiento de SIPAR_ID e INFILT fue similar en los surcos bloqueados en el extremo y con desagüe libre.

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“…Infiltration can be described by various equations and the respective parameters can be obtained with several types of field tests and by using intake families based on soil type or on basic infiltration rate (Walker, Prestwich, & Spofford, 2006). A commonly used infiltration equation is the Kostiakov equation (Walker & Skogerboe, 1987) whose parameterisation may be performed with volume balance or the inverse solution based on irrigation evaluation data (Darouich et al, 2012;Elliott, Walker, & Skogerboe, 1983;Holzapfel et al, 2004;Khatri & Smith, 2005;Strelkoff & Clemmens, 2007).…”

Section: Introductionmentioning

confidence: 99%

Field assessment of basin irrigation performance and water saving in Hetao, Yellow River basin: Issues to support irrigation systems modernisation

Miao

Shi

Gonçalves

et al. 2015

Biosystems Engineering

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Beneficial water use fraction Cut-off time Distribution uniformity Impacts of land levelling Infiltration Water-saving irrigation needs to be implemented in Hetao irrigation district to help satisfying the demand by other users in the Yellow River basin. Aiming at assessing the potential irrigation performance and water saving at farm level, a set of traditional basins and another of precision-levelled basins cropped with maize, wheat and sunflower and managed by farmers were evaluated. Data were collected to characterise the basin sizes, microtopography, inflow rates, advance and recession times, cut-off time and soil water content. In addition, families of infiltration curves were derived from field observations and subsequent use of model SIRMOD. Infiltration was higher for the precision-levelled basins and decreased from the first to the next irrigation events. Infiltration data were used to support the computation of distribution uniformity (DU), beneficial water use fraction (BWUF) and deep percolation (DP). For traditional basins, DU and BWUF were low and DP was high. When precise land levelling was practised, DU increased greatly to near 94% but BWUF improved little, because irrigation scheduling was inadequate leading to excessive water application; however, non-negligible water saving was achieved for maize and wheat since they have higher irrigation demand. In contrast, simulating the application of an appropriate irrigation scheduling through adjusting the cut-off time led to an approximately unchanged DU but BWUF greatly increased and DP reduced to 10% on average. This condition represents a potential water saving of 34e39%; however its achievement requires improved design of farm systems, appropriate irrigation water deliveries and scheduling, and the support and training of farmers.

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Evaluation of methods for determining infiltration parameters from irrigation advance data

Cited by 35 publications

References 11 publications

Toward a simple real‐time control system for efficient management of furrow irrigation

Toward a simple real‐time control system for efficient management of furrow irrigation

Evaluating models for the estimation of furrow irrigation infiltration and roughness

Field assessment of basin irrigation performance and water saving in Hetao, Yellow River basin: Issues to support irrigation systems modernisation

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