Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda

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dc.contributor.authorMubialiwo, Ambrose
dc.contributor.authorOnyutha, Charles
dc.contributor.authorAbebe, Adane
dc.date.accessioned2022-09-14T20:15:46Z
dc.date.available2022-09-14T20:15:46Z
dc.date.issued2020
dc.description.abstractChanges in the long-term (1948–2016) rainfall and evapotranspiration over Mpologoma catchment were analysed using gridded (0.25° × 0.25°) Princeton Global Forcing data. Trend and variability were assessed using a nonparametric approach based on the cumulative sum of the difference between exceedance and nonexceedance counts of data. Annual and March-May (MAM) rainfall displayed a positive trend (p < 0.05), whereas October-December (OND) and June-September rainfall exhibited negative trends with p > 0.05 and p < 0.05, respectively. Positive subtrends in rainfall occurred in the 1950s and from the mid-2000s till 2016; however, negative subtrends existed between 1960 till around 2005. Seasonal evapotranspiration exhibited a positive trend (p > 0.05). For the entire period (1948–2016), there was no negative subtrend in the OND and MAM evapotranspiration. Rainfall and evapotranspiration trends and oscillatory variation in subtrends over multidecadal time scales indicate the need for careful planning of predictive adaptation to the impacts of climate variability on environmental applications which depend on water balance in the Mpologoma catchment. It is recommended that future studies quantify possible contributions of human factors on the variability of rainfall and evapotranspiration. Furthermore, climate change impacts on rainfall and evapotranspiration across the study area should be investigated.en_US
dc.identifier.citationMubialiwo, A., Onyutha, C., & Abebe, A. (2020). Historical rainfall and evapotranspiration changes over Mpologoma catchment in Uganda. Advances in Meteorology, 2020. https://doi.org/10.1155/2020/8870935en_US
dc.identifier.urihttps://doi.org/10.1155/2020/8870935
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/4745
dc.language.isoenen_US
dc.publisherAdvances in Meteorologyen_US
dc.subjectHistorical Rainfallen_US
dc.subjectEvapotranspirationen_US
dc.subjectMpologoma Catchmenten_US
dc.subjectUgandaen_US
dc.titleHistorical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Ugandaen_US
dc.typeArticleen_US
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