Trends in Extreme Climate Events over Three Agroecological Zones of Southern Ethiopia

The study aims to assess trends in extremes of surface temperature and precipitation through the application of the World Meteorological Organization’s (WMO) Expert Team on Climate Change Detection and Indices (ETCCDI) on datasets representing three agroecological zones in Southern Ethiopia. The ind...

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Bibliographic Details
Published in:Advances in meteorology 2018-01, Vol.2018 (2018), p.1-17
Main Authors: Ongoma, Victor, Teferi, Ermias, Birhanu, Belay Simane, Esayas, Befikadu, Tefera, Nigussie
Format: Article
Language:English
Subjects:
Analysis
Atmospheric chemistry
Change detection
Climate change
Climatic extremes
Climatic indexes
Daily temperature range
Daily temperatures
Detection
Drought
Duration
Extreme cold
Floods
Global temperature changes
Hydrologic data
Organizations
Physics
Precipitation
Precipitation (Meteorology)
Precipitation data
Precipitation-temperature relationships
Rain
Socioeconomic factors
Statistical significance
Studies
Surface temperature
Temperature extremes
Trends
Wet days
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Summary:The study aims to assess trends in extremes of surface temperature and precipitation through the application of the World Meteorological Organization’s (WMO) Expert Team on Climate Change Detection and Indices (ETCCDI) on datasets representing three agroecological zones in Southern Ethiopia. The indices are applied to daily temperature and precipitation data. Nonparametric Sen’s slope estimator and Mann–Kendall’s trend tests are used to detect the magnitude and statistical significance of changes in extreme climate, respectively. All agroecological zones (AEZs) have experienced both positive and negative trends of change in temperature extremes. Over three decades, warmest days, warmest nights, and coldest nights have shown significantly increasing trends except in the midland AEZ where warmest days decreased by 0.017°C/year (p
ISSN:1687-9309
1687-9317
DOI:10.1155/2018/7354157