Has rainfall become more variable or extreme?

降雨量是否变得更加多变或极端?

基本信息

  • 批准号:
    DP160103439
  • 负责人:
  • 金额:
    $ 23.76万
  • 依托单位:
  • 依托单位国家:
    澳大利亚
  • 项目类别:
    Discovery Projects
  • 财政年份:
    2016
  • 资助国家:
    澳大利亚
  • 起止时间:
    2016-01-01 至 2019-06-30
  • 项目状态:
    已结题

项目摘要

The trends and variability of global daily rainfall are uncertain. By tackling data shortcomings and the scaling issues that exist between observations and models, this project aims to produce the first well-constrained long-term assessment of the variability and trends in daily rainfall over land. Using extreme value analysis on the resulting data would allow the exploration of the sensitivity of rainfall extremes to grid resolution, interpolation method and order of operation on an unprecedented grand scale. Ultimately, this means that improved return period estimates could be calculated for the types of events that could lead to flooding. Understanding how, where and why it rains is vital for enabling sound decisions to be made by our planners and policy-makers.
全球日降雨量的趋势和变率是不确定的。通过解决观测和模型之间存在的数据缺陷和尺度问题,该项目旨在对陆地上日降雨量的变化和趋势进行第一次有良好约束的长期评估。对所得数据进行极值分析,可以在前所未有的大尺度上探索降雨极值对网格分辨率、插值方法和操作顺序的敏感性。最终,这意味着可以为可能导致洪水的事件类型计算改进的回归期估计。了解降雨的方式、地点和原因对于我们的规划者和决策者做出合理决策至关重要。

项目成果

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Prof Lisa Alexander其他文献

Prof Lisa Alexander的其他文献

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{{ truncateString('Prof Lisa Alexander', 18)}}的其他基金

Do regional climate models rain too much?
区域气候模型是否降雨过多?
  • 批准号:
    FT210100459
  • 财政年份:
    2022
  • 资助金额:
    $ 23.76万
  • 项目类别:
    ARC Future Fellowships
Transforming our research capacity in the analysis of climate extremes
转变我们分析极端气候的研究能力
  • 批准号:
    LP100200690
  • 财政年份:
    2011
  • 资助金额:
    $ 23.76万
  • 项目类别:
    Linkage Projects

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