Raingauge network optimization in a tropical urban area by coupling cross-validation with the geostatistical technique

Ali, Mohd Zaharifudin Muhamad and Othman, Faridah (2018) Raingauge network optimization in a tropical urban area by coupling cross-validation with the geostatistical technique. Hydrological Sciences Journal, 63 (3). pp. 474-491. ISSN 0262-6667

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Official URL: https://doi.org/10.1080/02626667.2018.1437271

Abstract

An adequate and reliable raingauge network is essential for observing rainfall data in hydrology and water resource applications. A raingauge network developed for a catchment area is commonly extended periodically to increase data accuracy. Due to financial constraints, the network is reviewed for the optimal number of stations. A new optimization approach is developed in this study by coupling a cross-validation technique with a geostatistical method for raingauge network optimization to prioritize raingauge stations. The spatial interpolation error of the spatial rainfall distribution, measured as the root mean square error (Erms) optimization criterion is applied to a raingauge network in a tropical urban area. The results indicate that this method can successfully optimize the number of rainfall stations in an existing raingauge network, as the stations are prioritized based on their importance in the network.

Item Type: Article
Uncontrolled Keywords: raingauge network; cross-validation; geostatistical analysis; optimization; root mean square error
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Sep 2019 07:13
Last Modified: 25 Sep 2019 07:13
URI: http://eprints.um.edu.my/id/eprint/22555

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