Regional signatures of future fire weather over eastern Australia from global climate models

Hamish G. Clarke, Peter L. Smith, Andrew J. Pitman

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Skill-selected global climate models were used to explore the effect of future climate change on regional bushfire weather in eastern Australia. Daily Forest Fire Danger Index (FFDI) was calculated in four regions of differing rainfall seasonality for the 20th century, 2050 and 2100 using the A2 scenario from the Special Report on Emissions Scenarios. Projected changes in FFDI vary along a latitudinal gradient. In summer rainfall-dominated tropical north-east Australia, mean and extreme FFDI are projected to decrease or remain close to 20th century levels. In the uniform and winter rainfall regions, which occupy south-east continental Australia, FFDI is projected to increase strongly by 2100. Projections fall between these two extremes for the summer rainfall region, which lies between the uniform and summer tropical rainfall zones. Based on these changes in fire weather, the fire season is projected to start earlier in the uniform and winter rainfall regions, potentially leading to a longer overall fire season.

Original languageEnglish
Pages (from-to)550-562
Number of pages13
JournalInternational Journal of Wildland Fire
Volume20
Issue number4
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • climate projections
  • fire seasonality
  • Forest Fire Danger Index

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