Long-term trends in rainfall and temperature using high-resolution climate datasets in East Africa

Gebrechorkos, Solomon H., Hülsmann, Stephan and Bernhofer, Christian, (2019). Long-term trends in rainfall and temperature using high-resolution climate datasets in East Africa. Scientific Reports, 9(1), 1-9

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  • Sub-type Journal article
    Author Gebrechorkos, Solomon H.
    Hülsmann, Stephan
    Bernhofer, Christian
    Title Long-term trends in rainfall and temperature using high-resolution climate datasets in East Africa
    Appearing in Scientific Reports
    Volume 9
    Issue No. 1
    Publication Date 2019-08-06
    Place of Publication London
    Publisher Springer Nature
    Start page 1
    End page 9
    Language eng
    Abstract Detecting changes in climate is a prerequisite for a better understanding of the climate and developing adaptation and mitigation measures at a regional and local scale. In this study long-term trends in rainfall and maximum and minimum temperature (T-max and T-min) were analysed on seasonal and annual time scales for East Africa. High resolution gridded rainfall (1981–2016) and temperature (1979–2010) data from international databases like the Climate Hazards Group are used. Long-term seasonal trend analysis shows a non-significant (except for small areas), decreasing (increasing) trend in rainfall in eastern (western) parts of Ethiopia and Kenya and a decreasing trend in large parts of Tanzania during the long rainy season. On the other hand, a non-significant increasing trend in large parts of the region is observed during the short rain season. With regard to annual trends, results largely confirm seasonal analyses: only a few significant trends in rainfall, but significant increasing trends in T-max (up to 1.9 °C) and T-min (up to 1.2 °C) for virtually the whole region. Our results demonstrate the need and added value of analysing climate trends based on data with high spatial resolution allowing sustainable adaptation measures at local scales.
    Copyright Holder The Authors
    Copyright Year 2019
    Copyright type Creative commons
    ISSN 20452322
    DOI 10.1038/s41598-019-47933-8
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    Created: Thu, 05 Sep 2019, 14:54:44 JST by Thian, Wen Li on behalf of UNU FLORES