A study on local level rainfall and temperature variability in drought-prone districts in Ethiopia
A study on “Local level rainfall and temperature variability in drought-prone districts of rural Sidama, central rift valley region of Ethiopia” was published in June 2019. It was co-written by Tafesse Matewosa (Institute of Policy and Development Research (IPDR), Hawassa University Ethiopia, and NMBU, Norway) and Tewodros Tefera (School of Environment, Gender and Development Studies (SEGDS), Hawassa University, Hawassa, Ethiopia). Dr. Tewodros Tefera (PhD) is currently BENEFIT-REALISE Programme Manager and Associate Professor of Agricultural Economics.
The study used 129 gridded monthly rainfall and temperature data of 32 years (1983–2014). The gridded rainfall and temperature records were encoded into GIS software and evaluated through different statistical and geospatial techniques. Mann-Kendal rank test and F distribution tests were used to test temporal and spatial statistical significance, respectively, of the data. The analysis revealed that Belg and Kiremt are the main rainfall seasons, constituting 81% of the annual rainfall. Although annual, Kiremt, and Belg rainfall amounts appear to have decreased over time, the decreasing trend is statistically significant only for Belg rainfall records. On the other hand, rainfall standard anomaly results indicated seven droughts of different magnitudes: one extreme, two severe, and four moderate. The study also revealed increasing temperature trends over the years under consideration that are statistically significant. The findings of this study on rainfall contradict other findings obtained around the study area. Thus, climate change adaptations need to focus on location-specific climate data analysis so that the intended adaptive interventions can be successful. [download the study here]