Accounting for variability in commercial flood damage estimation

Andrew Gissing*, Russell Blong

*Corresponding author for this work

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Flooding in the business district of Kempsey, New South Wales, Australia, in 2001 allowed the collection and analysis of commercial flood damage data. Analysis indicated that direct losses were significant, totalling A$2.5 million. Data were variable owing to differences in the vulnerability of businesses to flood damage, differences in the impacts of the hazard upon businesses and survey uncertainty. Little direct relationship was found between direct commercial damage and over-floor water depth. Simple averaging and stage-damage curve loss estimation methods ignore the large variability present and result in inaccurate estimation of direct commercial damage. Probability loss estimation methods account for the variability present by assessing the chance of loss values occurring at specified depths of over-floor flooding.

Original languageEnglish
Pages (from-to)209-222
Number of pages14
JournalAustralian Geographer
Volume35
Issue number2
DOIs
Publication statusPublished - Jul 2004

Keywords

  • Commercial damage
  • Environmental economics
  • Flood
  • Flood damage
  • Loss estimation
  • Stage-damage analysis

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