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Trend and change-point detection analyses of rainfall and temperature over the Awash River basin of Ethiopia by Yitea Seneshaw Getahun; Ming-Hsu Li; Iam-Fei Pun is a Medicine article available to read on EtoBox.

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Awash River basin (ARB) as a system is in a state of continuous change that requires successive studies to discern the changes or trends of climatic elements through time due to climate change/variability, and other socio-economical developmental activities in the basin. The livelihood of communities in the ARB is primarily based on rainfall-dependent agriculture. Effects of rainfall anomalies such as reduction of agricultural productivity, water scarcity, and food insecurity are becoming more prevalent in this area. In recent years, ARB has been experiencing more frequent rainfall anomalies that change-point detection test and trend analyses of basin rainfall associated with sea surface temperature is crucial in providing guidance to improve agricultural productivity in ARB. Change-point detection tests such as Pettit's, the von Neumann ratio (VNR), Buishand's range (BR) and standard normal homogeneity (SNH) plus trend analysis Mann-Kendall (MK) test of rainfall and temperature data from 29 meteorological stations in the ARB were carried out from 1986 to 2016. A significant increasing trend of annual and seasonal temperature was found. The temperature change-points for the annual

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Author

Yitea Seneshaw Getahun; Ming-Hsu Li; Iam-Fei Pun

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Medicine (Physical Sciences)