ASSESSING EFFICIENCY OF GEOMORPHOLOGIC INSTANTANEOUS UNIT HYDROGRAPH METHOD IN FLOOD HYDROGRAPH SIMULATION COMPARED WITH OTHER METHODS

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KHALEGHI M.R.; GHODOUSI JAMAL; AHMADI HASAN; KAMYAR M.

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Journal: JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES Year:2010 | Volume:5 | Issue:2 Page(s): 89-100

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Title

ASSESSING EFFICIENCY OF GEOMORPHOLOGIC INSTANTANEOUS UNIT HYDROGRAPH METHOD IN FLOOD HYDROGRAPH SIMULATION COMPARED WITH OTHER METHODS

Author(s)

KHALEGHI M.R. | GHODOUSI JAMAL | AHMADI HASAN | KAMYAR M. | Issue Writer Certificate

Keywords

RAINFALL-RUNOFF MODELQ3

SCSQ3

SNYDERQ3

TRIANGULARQ3

ROSSO AND GCIUH UNIT HYDROGRAPHSQ3

KASILIAN BASINQ3

Abstract

Among the main objectives in hydrology are to forecast quantitatively the process of rainfall-runoff, and to determine flood discharge at the outlet of a watershed. Flood discharge can be estimated using RAINFALL-RUNOFF MODELs which explain hydrological phenomena for unmeasured watersheds. Relationship between hydrology and geomorphologic parameters can lead to the estimate of hydrologic response of a basin. The purpose of this study is to investigate the consistency, accuracy and reliability of geomorphologic model (GIUH) in estimating the shape and discharge of flood resulting from a rainfall with certain intensity and duration. The results of this model were compared with SCS (Soil Conservation Service), SNYDER, TRIANGULAR, Rosso and Geomorphoclimatic (GCIUH) unit hydrographs. The results showed that in KASILIAN BASIN with the area of 67/78 km2, GIUH model had the least amounts of main relativity (MRE) and square error (MSE). Furthermore the result showed that the efficiency of geomorphologic model ratio to SNYDER, SCS, Triangle, Rosso and GCIUH in KASILIAN BASIN are 91.06, 99.11, 88.642, 48.19 and 4.94 respectively. Therefore the result of Geomorphologic model compared to other models (based on this study) is the most efficient model to estimate flood discharge.

Cites

EVALUATING THE METHODS OF FLOOD HYDROGRAPH SIMULATION USING HEC-HMS SOFTWARE (A CASE STUDY, CHELGAZI WATERSHED)

References

EVALUATION OF GEOMORPHOLGICAL INSTANTANEOUS UNIT HYDROGRAPH IN KANGIR (EYVANE GHARB) WATERSHED

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APA: Copy

KHALEGHI, M.R., GHODOUSI, JAMAL, AHMADI, HASAN, & KAMYAR, M.. (2010). ASSESSING EFFICIENCY OF GEOMORPHOLOGIC INSTANTANEOUS UNIT HYDROGRAPH METHOD IN FLOOD HYDROGRAPH SIMULATION COMPARED WITH OTHER METHODS. JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES, 5(2), 89-100. SID. https://sid.ir/paper/143826/en

Vancouver: Copy

KHALEGHI M.R., GHODOUSI JAMAL, AHMADI HASAN, KAMYAR M.. ASSESSING EFFICIENCY OF GEOMORPHOLOGIC INSTANTANEOUS UNIT HYDROGRAPH METHOD IN FLOOD HYDROGRAPH SIMULATION COMPARED WITH OTHER METHODS. JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES[Internet]. 2010;5(2):89-100. Available from: https://sid.ir/paper/143826/en

IEEE: Copy

M.R. KHALEGHI, JAMAL GHODOUSI, HASAN AHMADI, and M. KAMYAR, “ASSESSING EFFICIENCY OF GEOMORPHOLOGIC INSTANTANEOUS UNIT HYDROGRAPH METHOD IN FLOOD HYDROGRAPH SIMULATION COMPARED WITH OTHER METHODS,” JOURNAL OF SCIENCES AND TECHNIQUES IN NATURAL RESOURCES, vol. 5, no. 2, pp. 89–100, 2010, [Online]. Available: https://sid.ir/paper/143826/en

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