...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Australian journal of water resources >Revision of design rainfalls over Australia: A pilot study
【24h】

Revision of design rainfalls over Australia: A pilot study

机译：修订澳大利亚的设计降雨：一项初步研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Design rainfalls for standard durations from 24 hours up to 72 hours are derived using all readily available up-to-date rainfall data for an area in southeastern Queensland/ northeastern New South Wales. Based on the annual maximum rainfall series, L-moments are derived at each site for a set of standard durations. A "region of influence" approach is employed to produce regionalised estimates of design rainfall. The network of continuously recording rain gauges is much less dense than the network of daily rain gauges. Data at longer durations is used to infer statistics at the shorter durations. For durations between 1 and 12 hours, a Partial Least Squares Regression model is developed to infer L-CV and L-skewness from the independent variables: L-CV and L-skewness at 24 hours, latitude, and distance from the coast. This procedure utilises information at the 24 hour duration to increase data coverage at the shorter durations. Maps of design rainfalls for standard average recurrence intervals from 1 to 100 years, and standard durations are produced using a combination of meteorological experience and a thin-plate smoothing spline algorithm. Results are compared with design rainfalls published in Institution of Engineers Australia (1987).
机译：使用昆士兰东南部/新南威尔士州东北部所有区域的所有最新可用降雨数据，得出了从24小时到72小时的标准持续时间的设计降雨量。根据年度最大降雨量序列，在每个地点以一组标准持续时间得出L矩。采用“影响区域”方法来产生设计降雨的区域化估计。连续记录雨量计的网络比每日雨量计的网络密度低得多。持续时间较长的数据可用于推断持续时间较短的统计信息。对于1到12个小时之间的时间，开发了偏最小二乘回归模型，以从以下自变量推断L-CV和L偏度：24小时的L-CV和L偏度，纬度和与海岸的距离。此过程利用24小时持续时间的信息来增加较短持续时间的数据覆盖率。使用气象经验和薄板平滑样条算法的组合，可以得出1至100年的标准平均重复间隔和标准持续时间的设计降雨图。将结果与澳大利亚工程师学会（1987）发表的设计降雨进行了比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号