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首页> 外文期刊>Revista Brasileira de Engenharia Agricola e Ambiental >Intensity-duration-frequency relationships of rainfall through the technique of disaggregation of daily rainfall
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Intensity-duration-frequency relationships of rainfall through the technique of disaggregation of daily rainfall

机译：通过每日降雨分解技术降雨的强度持续时间频率关系

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Rainfall intensity-duration-frequency (IDF) relationships are a tool that can be used in modeling the transformation of rainfall to runoff, required for the design of hydraulic works. The objective of this study was to verify if there is a significant difference between the intensity-duration-frequency relationships generated using pluviographic records and those determined from pluviometric data. Maximum annual rainfall intensity values were obtained from the disaggregation of maximum daily rainfall and rainfall records in the durations of 5, 10, 15, 20, 30, 60, 120, 360, 720 and 1440 min and for the return periods of 2, 5, 10, 20, 25, 50 and 100 years, in the locality of Pelotas, Rio Grande do Sul state, Brazil (31?° 46’ 34’’ S; 52?° 21’ 34’’ W, altitude of 13.2 m). By Student’s t-test, it was verified that there is no significant difference between the values of maximum rainfall intensity obtained from pluviographic records and those determined from pluviometric data.
机译：降雨强度 - 持续时间频率（IDF）关系是一种工具，可用于将降雨转换建模到径流，为液压作品设计所需的。本研究的目的是验证使用Pluviographic记录生成的强度持续时间频率关系是否存在显着差异，以及从Pluviometric数据确定的那些。最大年度降雨强度值是从最大每日降雨的分解和5,10,15,20,30,60,60,120,360,720和1440分钟的降雨记录的分解，并且返回期为2,5 ，10,20,25,50和100年，在Pelotas，巴西里奥格兰德州立州（31°46'34'; 52？°21'34'W，高度为13.2米）。通过学生的T检验，验证了从Pluviographic记录中获得的最大降雨强度的值与来自Pluviometric数据确定的值之间没有显着差异。

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