ESTIMATION OF THE SPATIOTEMPORAL PATTERN OF RECHARGE BY DISTRIBUTE PRMS MODEL (CASE STUDY: NEISHABOOR WATERSHED)

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NAZARIEH F.; ANSARI H.; ZIAEI A.N.; DAVARI K.; IZADY A.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2018 | Volume:14 | Issue:1 Page(s): 226-238

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Title

ESTIMATION OF THE SPATIOTEMPORAL PATTERN OF RECHARGE BY DISTRIBUTE PRMS MODEL (CASE STUDY: NEISHABOOR WATERSHED)

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Keywords

GROUNDWATER RECHARGEQ2

NEISHABOOR WATERSHEDQ1

PRMSQ1

SPATIOTEMPORAL PATTERNQ1

Abstract

In this study, distributed Precipitation-Runoff-Modeling-System (PRMS) was used to estimate the SPATIOTEMPORAL PATTERN of recharge in Neishaboor Plain in monthly time steps. In this regard, first, it was illustrated based on a sensitivity analysis of PRMS model that the most effective parameters controlling the hydrologic budget components in the study area are evapotranspiration, preferential flow density, waterholding capacity of soil zone, and contributing area in the runoff. Then the calibration of the PRMS was performed using PEST, using runoff in hydrometric stations and actual evapotranspiration (ETEns1.0). The model calibration and validation periods were 7 years (2002-2009) and 2 years (2009-2011), respectively. PRMS calibration based on the two components of the hydrologic budget (runoff and actual ET) led to increase in reliability of calculated recharge. The results revealed that actual ET which was equal to 87 percent of the total rainfall and irrigation water, was the most important component in the hydrologic budget. The second most important component was recharge which covered 12.5 percent of the total rainfall and irrigation water. The PRMS simulation showed that annually 295 MCM of water enters the aquifer as recharge from surface water, most of which occurs in mountains foothill and irrigated areas. This recharge happens from November to the following May. Thus, there is insignificant recharge during the warm months due to the high amount of evapotranspiration and soil water deficit in root zone.

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APA: Copy

NAZARIEH, F., ANSARI, H., ZIAEI, A.N., DAVARI, K., & IZADY, A.. (2018). ESTIMATION OF THE SPATIOTEMPORAL PATTERN OF RECHARGE BY DISTRIBUTE PRMS MODEL (CASE STUDY: NEISHABOOR WATERSHED). IRAN-WATER RESOURCES RESEARCH, 14(1 ), 226-238. SID. https://sid.ir/paper/100298/en

Vancouver: Copy

NAZARIEH F., ANSARI H., ZIAEI A.N., DAVARI K., IZADY A.. ESTIMATION OF THE SPATIOTEMPORAL PATTERN OF RECHARGE BY DISTRIBUTE PRMS MODEL (CASE STUDY: NEISHABOOR WATERSHED). IRAN-WATER RESOURCES RESEARCH[Internet]. 2018;14(1 ):226-238. Available from: https://sid.ir/paper/100298/en

IEEE: Copy

F. NAZARIEH, H. ANSARI, A.N. ZIAEI, K. DAVARI, and A. IZADY, “ESTIMATION OF THE SPATIOTEMPORAL PATTERN OF RECHARGE BY DISTRIBUTE PRMS MODEL (CASE STUDY: NEISHABOOR WATERSHED),” IRAN-WATER RESOURCES RESEARCH, vol. 14, no. 1 , pp. 226–238, 2018, [Online]. Available: https://sid.ir/paper/100298/en

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