Figure_A Figure_B
Figure 1. (a): Time series of the number of tropical cyclones in the Australian region (105-165 E) between 1969 to 1995. Dark bars indicate the number of cyclones with minimum pressure below 990 hPa. The grey bars indicate the numbers with minimum pressure between 1000 and 990 hPa (adapted from Nicholls et al. 1997). (b): Time series of Atlantic basin intense hurricanes (dark bars) and weaker cyclones (grey bars) for 1944-1995. Intense hurricanes are those cyclones that attain sustained surface winds of at least 50 ms-1 at some point in their life cycle. Weaker cyclones include all other remaining tropical storms, subtropical storms, and hurricanes. The superimposed lines are the linear best fits for the intense hurricanes (lower line) and for the total number of cyclones (upper line) (from Landsea et al. 1996).