COMPARISON OF DIFFERENT METHODS FOR PARAMETER ESTIMATION OF NASH’S INSTANTANEOUS UNIT HYDROGRAPH IN JAFARABAD WATERSHED

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

BAHREMAND A.R.; MOSTAFAZADEH R.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Watershed Management Research Year:2010 | Volume:23 | Issue:1 (86) Page(s): 42-51

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

1,831

Download:

Cites:

Information Journal Paper

Title

COMPARISON OF DIFFERENT METHODS FOR PARAMETER ESTIMATION OF NASH’S INSTANTANEOUS UNIT HYDROGRAPH IN JAFARABAD WATERSHED

Author(s)

BAHREMAND A.R. | MOSTAFAZADEH R. | Issue Writer Certificate

Keywords

RAINFALL-RUNOFF MODELINGQ3

NASH’S IUH MODELQ3

N AND K PARAMETERS ESTIMATIONQ3

MOMENT METHODQ3

THE JAFAR- ABAD WATERSHEDQ3

Abstract

Nash instantaneous unit hydrograph is frequently used for simulating hydrological response in natural watersheds. The accuracy of estimating the parameters n and k in Nash model directly affect simulation results. This study focuses on the evaluating different methods of estimating the Nash model parameters (n and k) in Jafar-Abad watershed (109 km2) located in Golestan province. Using Different methods such as moment, trial-and-error, Han’s graphical method, time to peak – time to inflection point and Bhunya et al methods, the n and k parameters was calculated using 33 stormevents, and physiographic parameters was used for experimental Nash formula. Then the mean value of n and k, were used for simulation of 4 other storm events as model validation. The efficiency of Nash model results was evaluated by statistical comparison with the observed hydrographs. The results show that using moment and trial-and-error methods in N AND K PARAMETERS ESTIMATION, the Nash model predict direct runoff hydrographs with good accuracy, 76% and 70 % respectively according to the Nash-Sutcliffe criterion. Also the results indicate that other methods give weak results comparing with moment and trial-and-error methods. Thus regionalization of Nash’s model parameters (n and k) by mentioned methods, in similar catchments introduced for development and application of this hydrological model.

Cites

EFFICIENCY OF EVALUATION OF DISKIN METHOD IN DERIVATION OF INSTANTANEOUS UNIT HYDROGRAPH IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE

References

EFFICACY OF ESTIMATION METHODS FOR STORAGE COEFFICIENT OF INSTANTANEOUS UNIT HYDROGRAPH IN FLOOD UNIT HYDROGRAPH REGENERATION

Cite

APA: Copy

BAHREMAND, A.R., & MOSTAFAZADEH, R.. (2010). COMPARISON OF DIFFERENT METHODS FOR PARAMETER ESTIMATION OF NASH’S INSTANTANEOUS UNIT HYDROGRAPH IN JAFARABAD WATERSHED. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), 23(1 (86)), 42-51. SID. https://sid.ir/paper/200513/en

Vancouver: Copy

BAHREMAND A.R., MOSTAFAZADEH R.. COMPARISON OF DIFFERENT METHODS FOR PARAMETER ESTIMATION OF NASH’S INSTANTANEOUS UNIT HYDROGRAPH IN JAFARABAD WATERSHED. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI)[Internet]. 2010;23(1 (86)):42-51. Available from: https://sid.ir/paper/200513/en

IEEE: Copy

A.R. BAHREMAND, and R. MOSTAFAZADEH, “COMPARISON OF DIFFERENT METHODS FOR PARAMETER ESTIMATION OF NASH’S INSTANTANEOUS UNIT HYDROGRAPH IN JAFARABAD WATERSHED,” WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), vol. 23, no. 1 (86), pp. 42–51, 2010, [Online]. Available: https://sid.ir/paper/200513/en

Related Journal Papers