Authors / CoAuthors
Arthur, W.C. | Griffin, J.D. | Cechet, R.P.
Abstract
There has been much debate on the influence climate change may have on global tropical cyclone activity (Webster et al. 2005, Landsea 2005, Emanuel 2005, Knutson et al. 2001), but the impacts on human settlements is even less clear. Regional differences in projected changes are also apparent, further clouding the issue of identifying changes in hazard and risk. As part of a contribution to the Garnaut Climate Change Review (Garnaut 2008), Geoscience Australia examined the changes in a number of indices of tropical cyclone activity as diagnosed from IPCC AR4 simulations. These results can be used to infer likely changes in tropical cyclone hazard. General circulation models (GCMs) are normally too coarse to accurately resolve peak winds associated with tropical cyclones (Walsh and Ryan 2000). Tropical cyclone-like vortices may be present in the finer resolution models, but these are a poor facsimile of observed tropical cyclones and thus are unsatisfactory predictors of changing tropical cyclone characteristics (Camargo et al. 2007). To gain some understanding of the potential changes in tropical cyclone behaviour under different future climate regimes, we use GCM outputs to examine environmental indices that have been linked to the intensity and frequency of tropical cyclones. Presented at the 13th Australasian Wind Engineering Society (AWES) Workshop 2008
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document
eCat Id
68254
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
- ( Theme )
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- climate
- ( Theme )
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- geohazards
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
2008-01-01T00:00:00
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geoscientificInformation
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13 Australasian Wind Engineering Society (AWES) Workshop 4-5 December 2008 Hobart TAS
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[-44.00, -9.00, 112.00, 154.00]
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