The efficiency of average linkage hierarchical clustering algorithm associated multi-scale bootstrap resampling in identifying homogeneous precipitation catchments

Zun Liang Chuan, Noriszura Ismail, Wendy Ling Shinyie, Tan Lit Ken, Soo Fen Fam, Azlyna Senawi, Wan Nur Syahidah Wan Yusoff

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Due to the limited of historical precipitation records, agglomerative hierarchical clustering algorithms widely used to extrapolate information from gauged to ungauged precipitation catchments in yielding a more reliable projection of extreme hydro-meteorological events such as extreme precipitation events. However, identifying the optimum number of homogeneous precipitation catchments accurately based on the dendrogram resulted using agglomerative hierarchical algorithms are very subjective. The main objective of this study is to propose an efficient regionalized algorithm to identify the homogeneous precipitation catchments for non-stationary precipitation time series. The homogeneous precipitation catchments are identified using average linkage hierarchical clustering algorithm associated multi-scale bootstrap resampling, while uncentered correlation coefficient as the similarity measure. The regionalized homogeneous precipitation is consolidated using K-sample Anderson Darling non-parametric test. The analysis result shows the proposed regionalized algorithm performed more better compared to the proposed agglomerative hierarchical clustering algorithm in previous studies.

Original languageEnglish
Article number012070
JournalIOP Conference Series: Materials Science and Engineering
Volume342
Issue number1
DOIs
Publication statusPublished - 6 Apr 2018
EventInternational Conference on Innovative Technology, Engineering and Sciences 2018, iCITES 2018 - Pekan, Pahang, Malaysia
Duration: 1 Mar 20182 Mar 2018

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Clustering algorithms
Catchments
Time series

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

The efficiency of average linkage hierarchical clustering algorithm associated multi-scale bootstrap resampling in identifying homogeneous precipitation catchments. / Chuan, Zun Liang; Ismail, Noriszura; Shinyie, Wendy Ling; Ken, Tan Lit; Fam, Soo Fen; Senawi, Azlyna; Yusoff, Wan Nur Syahidah Wan.

In: IOP Conference Series: Materials Science and Engineering, Vol. 342, No. 1, 012070, 06.04.2018.

Research output: Contribution to journalConference article

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AU - Fam, Soo Fen

AU - Senawi, Azlyna

AU - Yusoff, Wan Nur Syahidah Wan

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