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

当前和未来气候的温带气旋趋势以及与澳大利亚南部降雨的关联

• 批准号: DP0450831
• 负责人: Prof Ian Simmonds
• 金额: $ 17.76万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-14 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0450831
• 关键词: Extratropical; cyclone; trends; current; future

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.

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年），以获得新的和全面的汇编南半球天气活动在所有对流层水平高达300百帕。将确定气旋行为的趋势，并将其与澳大利亚南部降水量的变化联系起来。该方法将扩展到在增强的温室条件下模拟未来气候的结果。将确定极端气旋和降水事件在更温暖的世界中变得更多的程度，并建立它们之间的联系。