Application of non-parametric approaches to identify trend in streamflow during 1976-2007 (Naula watershed)

Malik, Anurag and Kumar, Anil and Ahmed, Ali Najah and Fai, Chow Ming and Afan, Haitham Abdulmohsin and Sefelnasr, Ahmed and Sherif, Mohsen and El-Shafie, Ahmed (2020) Application of non-parametric approaches to identify trend in streamflow during 1976-2007 (Naula watershed). Alexandria Engineering Journal, 59 (3). pp. 1595-1606. ISSN 1110-0168, DOI https://doi.org/10.1016/j.aej.2020.04.006.

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Abstract

The identification of trends in hydrological data is crucial for sustainable planning and management of water resources under the climate-change scenario. This research, identify the long-term temporal trend and magnitude (m(3)/s/time scale) in monthly, seasonal, and annual streamflow by employing three non-parametric approaches conventional Mann-Kendall (MK), Innovative-Sen trend (IST), and Sen-slope (SS) on 5% level of significance. The monthly streamflow data of 32-years (1976-2007) were recorded at Naula and Kedar stations positioned in the upper Ramganga River catchment (RRC), Uttarakhand State (India). Results of scrutiny reveal a significant negative trend in 17 time-series was detected by conventional MK test, and significant positive/negative trend in 1/30 time-series was inspected by the IST method with changing magnitude over monthly, seasonal, and annual scales at both stations, respectively. Furthermore, a comparison among results of the MK and IST showed that the IST method examined the unseen trend that cannot be detected by the MK technique at the Naula watershed. The pattern of trend detected on annual, seasonal, and monthly time-scales by three non-parametric approaches can help the water resources management authorities and hydrologists to comprehend the hazard and vulnerability under climate-change scenario over the study catchment area. (C) 2020 The Authors. Published by Elsevier B.V.

Item Type: Article
Funders: None
Uncontrolled Keywords: Temporal trend; Mann-Kendall test; Innovative-Sen trend method; Sen-slope method; Naula watershed
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Civil Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 04 Nov 2024 00:49
Last Modified: 04 Nov 2024 00:49
URI: http://eprints.um.edu.my/id/eprint/36661

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