Evaluation the performances of stochastic streamflow models for the multi reservoirs

Nurul Nadrah Aqilah, Tukimat and Sobri, Harun (2021) Evaluation the performances of stochastic streamflow models for the multi reservoirs. International Journal of Integrated Engineering, 13 (1). 303 -310. ISSN 2229-838X (Print); 2600-7916 (Online). (Published)

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Pedu-Muda reservoirs responsible to supply sufficient water capacity during paddy cultivation period twice a year. Thus, improper management and operation of the reservoirs creating the scarcity issue of water availability especially during dry season. Synthetic streamflow being as a main role in predicting the capability and sustainability of these reservoirs to cope the demand. This study evaluated the performances of stochastic streamflow model to produce the synthetic streamflow generation. There were two comparable models; Valencia Schaake (VS) and Thomas Fiering (TF) which represented in disaggregation and aggregation models, respectively. The basis of the statistical characteristics consist of lag one correlation, mean, mean absolute error (MAE), and standard deviation (St.D) of annual and monthly levels for both models were compared to identify the model performances. The results revealed the generated streamflow series produced by VS models had better performances to the historical streamflow record than the TF model in term of annual and monthly. However, both models can preserve a good agreement to the mean even the range of monthly streamflow were overestimated/underestimated by VS and TF models respectively.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Thomas fiering; Valencia schaake; Streamflow; Reservoir management; Stochastic model
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Faculty of Civil Engineering Technology
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 29 Dec 2021 02:10
Last Modified: 29 Dec 2021 02:10
URI: http://umpir.ump.edu.my/id/eprint/32675
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