DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH (IUH) USING THE SHANNON ENTROPY THEORY

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GHORBANI MOHAMMAD ALI; ASADI HAKIMEH; JABBARI KHAMNEH HOSSEIN; Farsadizadeh Davoud

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Journal: JOURNAL OF WATERSHED MANAGEMENT RESEARCH Year:2015 | Volume:5 | Issue:10 Page(s): 30-43

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Title

DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH (IUH) USING THE SHANNON ENTROPY THEORY

Author(s)

GHORBANI MOHAMMAD ALI | ASADI HAKIMEH | JABBARI KHAMNEH HOSSEIN | Farsadizadeh Davoud | Issue Writer Certificate

Keywords

INSTANTANEOUS UNIT HYDROGRAPHQ2

SHANNON ENTROPYQ1

GAMMA DISTRIBUTIONQ2

LIGHVANQ2

Abstract

INSTANTANEOUS UNIT HYDROGRAPH (IUH) is a hydrograph that has used for calculation of direct runoff hydrograph in watersheds and recent addition to formal methods, SHANNON ENTROPY theory consider for calculation of direct runoff hydrograph. If the system disorderly is measured in terms of entropy then the probability distribution of the events, provides in terms of entropy. In this theory, defined travel time as a random variable, the maximizing the entropy on based this parameter and also specifies constraints, the least-biased probability density function, determining parameters of the IUH and finally obtaining applicable IUH equation. In this study, six events of LIGHVAN watershed has been studied that located in Northwest Iran. After calculating travel time and determining parameters on based entropy, derivation applicable IUH equation and calculated direct runoff hydrograph. For estimated and more evaluated IUH and direct runoff hydrograph has used GAMMA DISTRIBUTION that result showed good accuracy of the entropy theory. The results indicate acceptable performance of the entropy model shows the average correlation coefficient (0.828), mean error of peak (17.35%), entropy index (2.47 knot) and nash-sutcliff value (NS=0.742) in verification events.

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APA: Copy

GHORBANI, MOHAMMAD ALI, ASADI, HAKIMEH, JABBARI KHAMNEH, HOSSEIN, & Farsadizadeh, Davoud. (2015). DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH (IUH) USING THE SHANNON ENTROPY THEORY. JOURNAL OF WATERSHED MANAGEMENT RESEARCH, 5(10), 30-43. SID. https://sid.ir/paper/230352/en

Vancouver: Copy

GHORBANI MOHAMMAD ALI, ASADI HAKIMEH, JABBARI KHAMNEH HOSSEIN, Farsadizadeh Davoud. DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH (IUH) USING THE SHANNON ENTROPY THEORY. JOURNAL OF WATERSHED MANAGEMENT RESEARCH[Internet]. 2015;5(10):30-43. Available from: https://sid.ir/paper/230352/en

IEEE: Copy

MOHAMMAD ALI GHORBANI, HAKIMEH ASADI, HOSSEIN JABBARI KHAMNEH, and Davoud Farsadizadeh, “DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH (IUH) USING THE SHANNON ENTROPY THEORY,” JOURNAL OF WATERSHED MANAGEMENT RESEARCH, vol. 5, no. 10, pp. 30–43, 2015, [Online]. Available: https://sid.ir/paper/230352/en

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