COMPUTATION AND REGIONALIZATION OF LOW FLOW INDICES AND DETERMINATION OF HYDROLOGICAL DROUGHT DURATIONS IN KARKHE WATERSHED

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ESLAMIAN S.S.; GHASEMI M.; SOLTANI GERDEFARAMARZI S.

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Journal: Journal of Water and Soil Science Year:2012 | Volume:16 | Issue:59 Page(s): 1-14

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Title

COMPUTATION AND REGIONALIZATION OF LOW FLOW INDICES AND DETERMINATION OF HYDROLOGICAL DROUGHT DURATIONS IN KARKHE WATERSHED

Author(s)

ESLAMIAN S.S. | GHASEMI M. | SOLTANI GERDEFARAMARZI S. | Issue Writer Certificate

Keywords

LOW FLOWQ2

REGIONALIZATIONQ2

KARKHEQ2

HYDROLOGIC DROUGHTQ2

FREQUENCY ANALYSISQ2

Abstract

In this study, in order to determe LOW FLOW conditions in KARKHE watershed, 5 indices of Q7,10, Q7,20, Q30,10, Q4,3 and Q95 were used for analyzing 12 hydrometric station data in the years of 1345-46 to 1380-81. Discharge data homogeneity was performed by Run Test. The Q95 index was determined by flow duration curve (FDC) and other indices were determined using 4, 7 and 30-day LOW FLOW FREQUENCY ANALYSIS. After calculating the indices, periods of LOW FLOWs were determined. The indices were regionalized by Kriging method. The results showed that for the most stations, low stream flows happened in the years of 1345-46, 1377-78, 1378-79, 1379-80 and 1380-81 and the percentages of stations having LOW FLOWs in these years were 68, 92, 84, 75 and 59, respectively. According to the regional maps of LOW FLOWs in KARKHE watershed, maximum LOW FLOWs are located in central and southern areas and all of the mentioned indices decrease from south to the north of this watershed.

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APA: Copy

ESLAMIAN, S.S., GHASEMI, M., & SOLTANI GERDEFARAMARZI, S.. (2012). COMPUTATION AND REGIONALIZATION OF LOW FLOW INDICES AND DETERMINATION OF HYDROLOGICAL DROUGHT DURATIONS IN KARKHE WATERSHED. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 16(59), 1-14. SID. https://sid.ir/paper/14621/en

Vancouver: Copy

ESLAMIAN S.S., GHASEMI M., SOLTANI GERDEFARAMARZI S.. COMPUTATION AND REGIONALIZATION OF LOW FLOW INDICES AND DETERMINATION OF HYDROLOGICAL DROUGHT DURATIONS IN KARKHE WATERSHED. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2012;16(59):1-14. Available from: https://sid.ir/paper/14621/en

IEEE: Copy

S.S. ESLAMIAN, M. GHASEMI, and S. SOLTANI GERDEFARAMARZI, “COMPUTATION AND REGIONALIZATION OF LOW FLOW INDICES AND DETERMINATION OF HYDROLOGICAL DROUGHT DURATIONS IN KARKHE WATERSHED,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 16, no. 59, pp. 1–14, 2012, [Online]. Available: https://sid.ir/paper/14621/en

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