Table 1

Table 1 Averaged annual total numbers of tropical cyclones ( wind at least 17ms-1) and intense tropical cyclones (wind at least 33 ms-1 and their standard deviations over all tropical cyclone basins ( unit: number per yar). Data are retrived from National Cliamte Data Center GTECCA dataset for the period 1970-95.

North
Atlantic
Basin
East
North
Pacific
Basin
North
Indian
Basin
Southwest
Indian
Basin
Southwest
Pacific
Basin
West
North
Pacific
Basin
Totals
Mean TC9.317.85.210.6 16.426.886.1
Intense TC 5.010.32.04.87.516.445.9
Std TC 2.6 4.7 2.2 3.2 4.6 3.9 7.9
Intense TC 1.7 3.5 1.9 2.6 2.6 3.4 7.0
Note: Totals = global total number.