An investigation to identify homogenous regions : a case study for New South Wales, Australia

Ayesha S. Rahman, Ataur Rahman

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

This study focuses on identification of hydrologically homogeneous regions in New South Wales (NSW) from 88 selected sites for regional flood frequency analysis. The heterogeneity measure proposed by Hosking and Wallis (1993) has been adopted for this study amongst the various available techniques to form homogenous region. This method applies L moments to check for homogeneity. L moments for all the 88 sites have been computed and an investigation for discordant sites has been carried out. This has been done in two steps: (i) considering all 88 sites as a single group and (ii) dividing the 88 sites into two groups based on their drainage divisions. The effect of the discordant sites has been examined both individually and as a group. The overall results show that the effect of the discordant sites on heterogeneity measure is negligible and no homogeneous regions can be established in NSW, which is similar to the findings of previous studies.
Original languageEnglish
Title of host publicationProceedings of the 1st International Conference on Water and Environmental Engineering (ICWEE2017), 20-22 November 2017, Sydney, Australia
PublisherScience, Technology and Management Crest Australia
Pages121-128
Number of pages8
ISBN (Print)9780648014744
Publication statusPublished - 2017
EventInternational Conference on Water and Environmental Engineering -
Duration: 20 Nov 2017 → …

Conference

ConferenceInternational Conference on Water and Environmental Engineering
Period20/11/17 → …

Keywords

  • floods
  • flood frequency analysis
  • watersheds
  • drainage
  • New South Wales

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