Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa

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dc.contributor.authorOnyutha, Charles
dc.date.accessioned2022-09-14T20:08:11Z
dc.date.available2022-09-14T20:08:11Z
dc.date.issued2016
dc.description.abstractTrends and variability in series comprising the mean of fifteen highest daily rainfall intensities in each year were analyzed considering entire Uganda.The data were extracted from high-resolution (0.5∘ × 0.5∘) gridded daily series of the Princeton Global Forcings covering the period 1948–2008. Variability was analyzed using nonparametric anomaly indicator method and empirical orthogonal functions. Possible drivers of the rainfall variability were investigated. Trends were analyzed using the cumulative rank difference approach. Generally, rainfall was above the long-term mean from the mid-1950s to the late 1960s and again in the 1990s. From around 1970 to the late 1980s, rainfall was characterized by a decrease. The first and second dominant modes of variability correspond with the variation in Indian Ocean Dipole and North Atlantic Ocean index, respectively.The influence of Ni˜no 3 on the rainfall variability of some parts of the country was also evident.The southern and northern parts had positive and negative trends, respectively.The null hypothesis 𝐻0 (no trend) was collectively rejected at the significance level of 5% in the series from 7 out of 168 grid points. The insights from the findings of this study are vital for planning and management of risk-based water resources applications.en_US
dc.identifier.citationOnyutha, C. (2016). Geospatial trends and decadal anomalies in extreme rainfall over Uganda, East Africa. Advances in Meteorology, 2016.en_US
dc.identifier.urihttp://dx.doi.org/10.1155/2016/6935912
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/4743
dc.language.isoenen_US
dc.publisherOnyutha, C. (2016). Geospatial trends and decadal anomalies in extreme rainfall over Uganda, East Africa. Advances in Meteorology, 2016. http://dx.doi.org/10.1155/2016/6935912en_US
dc.subjectGeospatial Trendsen_US
dc.subjectDecadal Anomaliesen_US
dc.subjectRainfallen_US
dc.subjectUgandaen_US
dc.titleGeospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africaen_US
dc.typeArticleen_US
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