ty -jour a2 -buttafuoco,gabriele au -daba,mekonnen H. au -ayele,gebiaw t. au- you,songcai py -2020 da -2020/11/24 ti-长期同质性和趋势的鞋类和趋势Awash River Basin,埃塞俄比亚SP -8861959 VL -2020 AB-了解氢化气候变量的长期趋势对于未来的可持续水资源管理很重要,因为它可能显示出可能在水文学方面发生了可能的转变。这项研究的主要目的是通过采用均匀性测试以及Mann-Kendall和SEN的坡度测试来分析埃塞俄比亚Oromia,Oromia,埃塞俄比亚Oromia上的Awash Sab-Basin(UASB)的氢化气候数据的同质性和趋势。数据包括18个降雨站,8个温度站和整个UASB的8个流量测量站。Homogeneity and trends in streamflow, rainfall, and temperature variables were analyzed for the time period 1980 to 2017. In order to analyze homogeneity of hydroclimatic variables, we used four homogeneity tests (Pettitt’s test, Buishand’s test, standard normal homogeneity test, and von Neumann ratio test) at 5% significance level. Based on the outputs of four homogeneity tests, the results were classified into three categories, namely, “useful,” “doubtful,” and “suspect” to select the homogeneity stations. Mann-Kendall (
z)和森的坡度测试(
问)用于选定的均质时间序列,以检测氢化气候变量变化的趋势和幅度。结果表明,年度降雨和流量数据系列中的大多数站都被归类为有用。发现58%的降雨站是同质的。有人强调,在8个排放测量站中,有3个具有不均匀性,因为它们因四个测试的一个或组合而失败。MK显示Addis Alem的年降雨趋势显着下降(
问 = −19.81), Akaki (
问 = −5.60), Hombole (
问 = −9.49), and Ghinch (
问 = −12.38) stations. The trend of annual temperature was a significant increasing trend in Addis Ababa Bole (
问 = 0.05), Addis Ababa Tikur Ambessa (
问 = 0.03), Tulu Bolo (
问 = 0.07), and Addis Alem (
问 = 0.06) stations. The results of discharge showed a significant increasing trend in Bega at Mojo (
问 = 0.17) and Hombole (
问 = 0.03) gauging stations. In general, the results obtained from discharge, rainfall, and temperature series indicated that most of the stations exhibited no trends in both annual and seasonal time series. It can be concluded that decreases in average annual rainfall totals and increases in mean annual temperature will probably drive sub-basin scale changes in discharge. We believe that the results obtained can fill information gaps on homogeneity and trends of hydroclimatic variables, which is very crucial for future water resource planning and management in the face of climate change. SN - 1687-9309 UR - https://doi.org/10.1155/2020/8861959 DO - 10.1155/2020/8861959 JF - Advances in Meteorology PB - Hindawi KW - ER -