No significant trend was observed for annual rainfall, while a positive trend was observed in the winter season.
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Investigation of the spatial and temporal long-term hydro-climatic trends in Upper Omo Gibe Basin, Ethiopia.
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The sentences
The average annual temperature showed an increasing trend with the rate of 0.0067 0 c/year and 0.005 0 c/year at Dangila and Chagni stations, respectively.
The maximum statistically significant increasing trend of rainfall (P < 0.05) was observed at Limugenet station (Z = 3.641, S = 16.484), and a decreasing trend of rainfall was observed in Dedo station (Z = −2.732, S = −31.099).