DEZ BASIN FLOOD FREQUENCY ANALYSIS

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ROSTAMI RAMIN; SEDGHI HOSSEIN; MOTAMEDI ALI

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Journal: Journal of Water Resources Engineering Year:2009 | Volume:2 | Issue:3 Page(s): 61-70

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Information Journal Paper

Title

DEZ BASIN FLOOD FREQUENCY ANALYSIS

Author(s)

ROSTAMI RAMIN | SEDGHI HOSSEIN | MOTAMEDI ALI | Issue Writer Certificate

Keywords

DEZ BASINQ2

L-MOMENTSQ2

CLUSTERINGQ1

L-MOMENT DIAGRAMQ3

GOODNESS OF FIT TESTQ3

Abstract

In this research, from data of 26 hydrometric station records and l-moment approach, regional and stational flood frequency of DEZ BASIN was analyzed. For identifying homogeneous regions, Ward hierarchical cluster method was used. The appropriate number of homogeneous regions was determinate from nonhomogeneity test and discordancy measure. The DEZ BASIN was divided into three homogeneous regions. In these regions parameters of the regional frequency distribution were evaluated by the L-moment ratios. The L-MOMENT DIAGRAM, GOODNESS OF FIT TEST, and plotting position methods were used for the selection of appropriate distribution and plotting position formula. Generalized Extreme-Value distribution and Chegodieve plotting position formula is appropriate for region A, generalized logistic distribution and Greengurten plotting position formula for region B and Generalized Extreme-Value distribution and Greengurten plotting position formula for region C were selected. The relative root mean square error (rRMSE) between observed and estimated data, in all stations, in high return periods is small and in small return periods is vicversa. Regional models evaluated for determination of flood discharge magnitude in different frequency by linear and multiple regression method.

Cites

INVESTIGATING EFFECTIVE PARAMETERS OF SURFACE FLOW AND WATER RESOURCES SPATIAL ZONING IN CENTRAL ZAGROSS, IRAN

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APA: Copy

ROSTAMI, RAMIN, SEDGHI, HOSSEIN, & MOTAMEDI, ALI. (2009). DEZ BASIN FLOOD FREQUENCY ANALYSIS. WATER ENGINEERING, 2(3), 61-70. SID. https://sid.ir/paper/169549/en

Vancouver: Copy

ROSTAMI RAMIN, SEDGHI HOSSEIN, MOTAMEDI ALI. DEZ BASIN FLOOD FREQUENCY ANALYSIS. WATER ENGINEERING[Internet]. 2009;2(3):61-70. Available from: https://sid.ir/paper/169549/en

IEEE: Copy

RAMIN ROSTAMI, HOSSEIN SEDGHI, and ALI MOTAMEDI, “DEZ BASIN FLOOD FREQUENCY ANALYSIS,” WATER ENGINEERING, vol. 2, no. 3, pp. 61–70, 2009, [Online]. Available: https://sid.ir/paper/169549/en

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