Weibull和Fréchet分布估计量确定伊拉克最佳降雨区域的比较

Q1 Engineering

Periodicals of Engineering and Natural Sciences Pub Date : 2023-04-11 DOI:10.21533/pen.v11i2.3527

Inam Abdul Rahman Noaman, Huda Amer Abdul Ameer, Wahhab Salim Mohammed

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引用次数: 0

摘要

在这项研究中，将发现伊拉克各省（2006-2014年）的降雨量的适当分布，研究人员使用了两个重要分布，即威布尔分布和弗雷切特分布。其中，特定分布是基于最小标准（拟合优度标准）确定的，使用的测试是Akaike信息标准（AIC）和贝叶斯信息标准（BIC）。伊拉克各省（摩苏尔、基尔库克、提克里特、卡纳金、鲁特巴、巴格达、卡尔巴拉）的降雨量是使用最大可能估计方法的威布尔分布，而其他省份（纳杰夫、迪瓦尼亚、迈桑、巴士拉）的台站则是Fréchet分布。最好也使用估计最大值的方法来表示这些台站的数据。我们还注意到了最小二乘最大似然法的优越性。

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Comparison of Weibull and Fréchet distributions estimators to determine the best areas of rainfall in Iraq

In this research, an appropriate distribution of the amount of rain will be found in the Iraqi governorates for the period (2006-2014) and the researcher used two important distributions, namely, the Weibull distribution and the Fréchet distribution. Where the specific distribution was determined based on the minimum criteria (the criteria of goodness of fit) and the tests used are the Akaike Information Criterion (AIC) and the Bayesian Information Criterion (BIC). Rainfall in the Iraqi governorates for the stations (Mosul, Kirkuk, Tikrit, Khanaqin, Rutba, Baghdad, Karbala) is a Weibull distribution using the greatest possible estimation method, while the stations in other provinces (Najaf, Diwaniyah, Maysan, Basra) the Fréchet distribution was the distribution It is better to represent the data of these stations using the method of estimating the greatest possible as well. We also note the superiority of the method of maximum likelihood of least squares.

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来源期刊

Periodicals of Engineering and Natural Sciences Engineering-Architecture

CiteScore

1.90

自引率

0.00%

发文量

140

审稿时长

7 weeks

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