气候变化领域集成服务门户(CCPortal): Trend and variability analysis of rainfall and temperature in the tana basin region; Ethiopia

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DOI	10.2166/wcc.2018.080
	Trend and variability analysis of rainfall and temperature in the tana basin region; Ethiopia
	Birara H.; Pandey R.P.; Mishra S.K.
发表日期	2018
ISSN	20402244
起始页码	555
结束页码	569
卷号	9 期号:3
英文摘要	Global warming and climate variability are emerging as the foremost environmental problems in the 21st century, particularly in developing countries. Ethiopia is one of the countries located in the sub-Sahara region and climate variability has a significant impact on the economy of the country. The aim of this study is to characterize annual and seasonal rainfall and annual temperature variability, and to measure trends on both the spatial and the temporal scale for ten selected stations in the Tana basin region, Ethiopia. The Mann–Kendall test and Sen’s slope estimator were used to assess trends and variability of rainfall and temperature. The spatial distribution of rainfall and temperature was determined using the inverse distance weighted technique. Results indicated that the amount of rainfall decreased for the majority of the stations. The annual rainfall showed significant decreasing trends with a magnitude ranging from 5.92 mm/year at Injibara to 9.74 mm/year in Wegera. However, a positive trend of annual rainfall was observed at Addis Zemen (1.81 mm/year). The minimum, maximum and mean temperatures have increased significantly for most of the stations. An increasing trend of annual maximum temperature was obtained between 1980 and 2015; an increase of 1.08°C was observed. © IWA Publishing 2018.
英文关键词	Mann-Kendall test; Rainfall; Sen’s slope estimator; Tana basin; Temperature; Trend analysis
语种	英语
scopus关键词	Developing countries; Global warming; Temperature; Annual temperatures; Climate variability; Environmental problems; Inverse distance weighted; Mann-Kendall test; Tana basin; Trend analysis; Variability analysis; Rain; air temperature; annual variation; numerical model; rainfall; seasonal variation; spatial analysis; temporal analysis; trend analysis; Ethiopia
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148037
作者单位	Department of Water Resources Development and Management, IIT Roorkee, Roorkee, Uttarakhand 247667, India; National Institute of Hydrology Roorkee, Roorkee, Uttarakhand 247667, India
推荐引用方式 GB/T 7714	Birara H.,Pandey R.P.,Mishra S.K.. Trend and variability analysis of rainfall and temperature in the tana basin region; Ethiopia[J],2018,9(3).
APA	Birara H.,Pandey R.P.,&Mishra S.K..(2018).Trend and variability analysis of rainfall and temperature in the tana basin region; Ethiopia.Journal of Water and Climate Change,9(3).
MLA	Birara H.,et al."Trend and variability analysis of rainfall and temperature in the tana basin region; Ethiopia".Journal of Water and Climate Change 9.3(2018).