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首页> 外文期刊>Journal of Hydroinformatics >RainIDF: automated derivation of rainfall intensity-duration-frequency relationship from annual maxima and partial duration series
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RainIDF: automated derivation of rainfall intensity-duration-frequency relationship from annual maxima and partial duration series

机译：RainIDF：根据年度最大值和部分历时序列自动推导降雨强度-持续时间-频率关系

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摘要

RainIDF, a software tool for derivation of rainfall intensity-duration-frequency (IDF) relationship is developed as an Excel add-in by using Visual Basics for Applications (VBA). The tool is integrated with two of the most widely used statistical distributions for determination of IDF relationship: the generalized extreme value (GEV) distribution for annual maxima series, and the generalized Pareto (GPA) distribution for partial duration series (PDS). It provides automated distribution fitting for rainfall data in the form of annual maxima or PDS for multiple intervals, solving and plotting of rainfall IDF curves. RainIDF uses the Solver add-in function in Excel to solve the coefficients of the empirical IDF formula in one step. The methodology built into RainIDF is discussed and rainfall IDF relationships for several stations in Peninsular Malaysia are derived and compared. RainIDF is available for download on GitHub as an Excel add-in.
机译：RainIDF是用于导出降雨强度-持续时间-频率（IDF）关系的软件工具，是使用Visual Basics for Applications（VBA）作为Excel插件开发的。该工具与两个用于确定IDF关系的最广泛使用的统计分布集成在一起：年度最大值序列的广义极值（GEV）分布和局部历时序列（PDS）的广义Pareto（GPA）分布。它为多个间隔的年最大值或PDS形式的降雨量数据提供自动分布拟合，可求解和绘制降雨IDF曲线。 RainIDF使用Excel中的Solver附加函数一步一步地求解经验IDF公式的系数。讨论了RainIDF中内置的方法，并推导并比较了马来西亚半岛多个站点的降雨IDF关系。 RainIDF可作为Excel加载项在GitHub上下载。

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