Extratropical cyclone trends in current and future climate and associations with southern Australia rainfall

一个复杂的气旋定位和跟踪计划将应用于NCEP-2全球大气再分析（1979-2003），以获得新的和全面的南半球对流层所有水平直至300 hPa的天气活动汇编。将确定气旋行为的趋势，并将其与南澳大利亚的降水变化联系起来。该方法将扩展到对温室条件增强下的未来气候的模拟结果。将确定在一个变暖的世界中，极端气旋和降水事件变得更加频繁的程度，并确定它们之间的联系。

A sophisticated cyclone locating and tracking scheme will be applied to the NCEP-2 global atmospheric reanalysis (1979-2003) to derive new and comprehensive compilations of Southern Hemisphere synoptic activity at all tropospheric levels up to 300 hPa. Trends in cyclone behaviour will be identified and related to changes in precipitation over southern Australia. The approach will be extended to results from a simulation of future climate under enhanced greenhouse conditions. The extent to which extreme cyclone and precipitation events become more numerous in a warmer world will be determined and the links between them established.