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Rainfall nowcasting by at site stochastic model P.R.A.I.S.E.

机译:现场随机模型P.R.A.I.S.E.

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The paper introduces a stochastic model to forecast rainfall heights atsite: the P.R.A.I.S.E. model (Prediction of Rainfall Amount Inside StormEvents). PRAISE is based on the assumption that the rainfall height Hi+1 accumulated on an interval Δt between the instants iΔt and(i+1Δt is correlated with a variable Zi(ν), representing antecedent precipitation. The mathematicalbackground is given by a joined probability density fHi+1, Zi(ν)(hi+1 ,zi(ν)) in whichthe variables have a mixed nature, that is a finite probability incorrespondence to the null value and infinitesimal probabilities incorrespondence to the positive values. As study area, the Calabria region,in Southern Italy, was selected, to test performances of the PRAISE model.
机译:本文介绍了一种随机模型来预测现场的降雨高度:P.R.A.I.S.E。模型(对StormEvents中的降雨量的预测)。 PRAISE基于这样的假设:降雨高度 H i +1 在时刻iΔt t 中累积。 I>和(i +1Δt)与变量 Z i (ν) 相关,代表先前的降水。数学背景由联合概率密度 f H i + 1 ,Z i (ν)(h i + 1 ,z i (ν) ),其中变量具有混合性质,即有限概率与零值不相关,无穷小概率与正值不相关作为研究区域,选择了意大利南部的卡拉布里亚地区,以测试PRAISE模型的性能。

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