Figure 12-4: Simulated return
periods (average time between events) of storm tides in Cairns, Queensland, for
present climate (lower curve), and for enhanced greenhouse climate (upper curve),
assuming 10 hPa lowering of central pressures and increased variability (additional
5 hPa standard deviation) of tropical cyclones. Anticipated mean sea-level rise
should be added to these estimates. Uncertainty ranges of simulations are shown
via grey shading (Walsh et al., 2000).