ALLOCATION OF WATER RESOURCES SYSTEM BY USING MIKE BASIN MODEL IN TREND AND DETRENDED TIME SERIES OF STREAM FLOW, SOOFI CHAI BASIN

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FATHIAN F.; BAGHERY HAROONI M.H.

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Journal: Journal of Water and Soil Year:2012 | Volume:26 | Issue:2 Page(s): 381-391

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Title

ALLOCATION OF WATER RESOURCES SYSTEM BY USING MIKE BASIN MODEL IN TREND AND DETRENDED TIME SERIES OF STREAM FLOW, SOOFI CHAI BASIN

Author(s)

FATHIAN F. | BAGHERY HAROONI M.H. | Issue Writer Certificate

Keywords

WATER RESOURCES ALLOCATIONQ2

MIKE BASIN MODELQ2

RELATIVE DEFICITQ2

TRENDQ2

SOOFI CHAI BASINQ2

Abstract

Now days, water allocation issue is the main problem of decision makers and stakeholders in the majority of catchment basins. The stream flow is the most important information for simulation and modeling of water resources systems allocation. In the other hand, in recent years, TREND of stream flows decreased in downstream because of development of agriculture lands and enhancement of stream flows withdrawals. In this study, allocation of water resources systems has investigated under conditions of existing TREND and detrending of stream flow by using MIKE BASIN MODEL. In this study, allocation of water resources system has been done for TREND, first detrended (in order to management of upstream) and second detrended (in order to management of downstream) time series in SOOFI CHAI BASIN. In order to detect the TREND of annual stream flow, has been also used non-parametric methods such as Mann-Kendall, Theil-Sen and Spearman Rho. The results showed a decreasing significant TREND of Soofi Chai stream flow at 95% confidence level but, there was no significant TREND in the Chekan Chai stream flow. Moreover, the results of model simulation, showed that the RELATIVE DEFICIT percent of consumption nodes has increased in first detrended status and has decreased in second detrended status RELATIVE DEFICIT percent in comparison with existing TREND status, respectively. As, for agricultural nodes 1 and 2 has decreased 18 and 1.9 percent, respectively in comparison with first detrended status. In addition, this RELATIVE DEFICIT for these nodes has increased 42 and 25 percent in comparison with second detrended status.

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