Trend analysis of stream flow changing of Chamenjir watershed using nun-parametric tests

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TORABI HASSAN; DEHGHANI REZA

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Journal: IRANIAN JOURNAL OF ECOHYDROLOGY Year:2016 | Volume:3 | Issue:3 Page(s): 415-425

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Title

Trend analysis of stream flow changing of Chamenjir watershed using nun-parametric tests

Author(s)

TORABI HASSAN | DEHGHANI REZA | Issue Writer Certificate

Keywords

autocorrelationQ2

Mann-Kendall testQ2

prewhitinQ3

springQ2

trendQ2

Abstract

trend analysis of changing stream flows of spring in Khoramabad city in three times span namely month, season and annual were investigated by statistical method. The data used include data from 4 springs were selected in 40-years period (1348-1388). In this study, the slope of the linear trend in the data sample estimates with using the TSA and then with using TFPW method the effect of coefficient of autocorrelation of data was eliminated, and discharge time series prewhitened, then trend changing of original and prewhitened time series with MK test were analyzed. Ultimately, rend analysis of changing of station of precipitation in annual were investigated by statistical method. The results of investigation in annual based on MK-TFPW presented. Also the results of this research show that at annual scale of stations no trend is significant at 10% level. So, decreasing of spring flow is due increase of pickup underground water.

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APA: Copy

TORABI, HASSAN, & DEHGHANI, REZA. (2016). Trend analysis of stream flow changing of Chamenjir watershed using nun-parametric tests. IRANIAN JOURNAL OF ECOHYDROLOGY, 3(3 ), 415-425. SID. https://sid.ir/paper/254281/en

Vancouver: Copy

TORABI HASSAN, DEHGHANI REZA. Trend analysis of stream flow changing of Chamenjir watershed using nun-parametric tests. IRANIAN JOURNAL OF ECOHYDROLOGY[Internet]. 2016;3(3 ):415-425. Available from: https://sid.ir/paper/254281/en

IEEE: Copy

HASSAN TORABI, and REZA DEHGHANI, “Trend analysis of stream flow changing of Chamenjir watershed using nun-parametric tests,” IRANIAN JOURNAL OF ECOHYDROLOGY, vol. 3, no. 3 , pp. 415–425, 2016, [Online]. Available: https://sid.ir/paper/254281/en

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