APPLICATION OF TIME-SERIES MODELING TO PREDICT SUBSURFACE DRAINAGE DISCHARGE AND WATER TABLE DEPTH

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VAZIRPOUR SHAFIE; MIRZAEI ASL SHIRKOHI FARHAD; EBRAHIMIAN HAMED; RAFIEE HAMED

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Journal Paper

Paper Information

Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2015 | Volume:5 | Issue:1 Page(s): 1-16

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Title

APPLICATION OF TIME-SERIES MODELING TO PREDICT SUBSURFACE DRAINAGE DISCHARGE AND WATER TABLE DEPTH

Author(s)

VAZIRPOUR SHAFIE | MIRZAEI ASL SHIRKOHI FARHAD | EBRAHIMIAN HAMED | RAFIEE HAMED | Issue Writer Certificate

Keywords

CALIBRATIONQ2

DRAINAGE DISCHARGEQ2

DRAINAGE SYSTEMQ2

DRAINMOD MODELQ2

WATER TABLE DEPTHQ2

Abstract

Stochastic characteristics of the drainage phenomena led to the application of random variables and time series modeling in predicting the performance of these phenomena. The aim of this study was to investigate the potential of time-series models in predicting the performance of a subsurface DRAINAGE SYSTEM. Behshahr Ran subsurface DRAINAGE SYSTEM, which its drains are activated via rainfall, was considered as the study area. In this study, DRAINMOD MODEL was calibrated for the study area. Then, variables of DRAINAGE DISCHARGE and WATER TABLE DEPTH were simulated via the calibrated DRAINMOD MODEL. This information was used to evaluate the performance of various time-series models. The results showed that the ARMAX model with exogenous variables including daily value, precipitation during the previous days and average desired variables in the last two days was efficient in estimating WATER TABLE DEPTH and DRAINAGE DISCHARGE. Mean absolute error for predicting both variables was about 8%. Comparison between the selected times series models and the calibrated DRAINMOD MODEL results indicated the application of time-series models in predicting the performance of the subsurface DRAINAGE SYSTEM was satisfactory. The coefficients of determination were 0.51 and 0.74 for DRAINAGE DISCHARGE and WATER TABLE DEPTH, respectively. The root mean squared error for these variables were 0.01 cm/day and 8.6 cm, respectively.

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References

EFFECT OF DRAINAGE DEPTH AND IMPERMEABLE LAYER ON THE FLOW RATE AND DRAINAGE WATER SALINITY IN THE IRRIGATED SOILS OF SOUTH KHUZESTAN

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APA: Copy

VAZIRPOUR, SHAFIE, EBRAHIMIAN, HAMED, & RAFIEE, HAMED. (2015). APPLICATION OF TIME-SERIES MODELING TO PREDICT SUBSURFACE DRAINAGE DISCHARGE AND WATER TABLE DEPTH. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 5(1), 1-16. SID. https://sid.ir/paper/232173/en

Vancouver: Copy

VAZIRPOUR SHAFIE, EBRAHIMIAN HAMED, RAFIEE HAMED. APPLICATION OF TIME-SERIES MODELING TO PREDICT SUBSURFACE DRAINAGE DISCHARGE AND WATER TABLE DEPTH. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2015;5(1):1-16. Available from: https://sid.ir/paper/232173/en

IEEE: Copy

SHAFIE VAZIRPOUR, HAMED EBRAHIMIAN, and HAMED RAFIEE, “APPLICATION OF TIME-SERIES MODELING TO PREDICT SUBSURFACE DRAINAGE DISCHARGE AND WATER TABLE DEPTH,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 5, no. 1, pp. 1–16, 2015, [Online]. Available: https://sid.ir/paper/232173/en

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