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    Hydrological Model Supported by a Step-Wise Calibration against Sub-Flows and Validation of Extreme Flow Events 

    Onyutha, Charles (Water, 2019)
    Most hydrological models have fixed structures and their calibrations are typified by a conventional approach in which the overall water balance closure is considered (without a step-wise focus on sub-flows’ variation). ...
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    Decadal Analysis of River Flow Extremes Using Quantile-Based Approaches 

    Tabari, Hossein; Teferi Taye, Meron; Onyutha, Charles; Willems, Patrick (er Resources Management, 2017)
    Next to the traditional analysis of trends in time series of hydro-climatological variables, analysis of decadal oscillations in these variables is of particular importance for the risk assessment of hydro-climatological ...
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    Empirical statistical characterization and regionalization of amplitude–duration–frequency curves for extreme peak flows in the Lake Victoria Basin, East Africa 

    Onyutha, Charles; Willems, Patrick (Hydrological Sciences Journal, 2015)
    This paper focuses on a regionalization attempt to partly solve data limitation problems in statistical analysis of high flows to derive discharge–duration–frequency (QDF) relationships. The analysis is based on 24 selected ...
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    Variability of seasonal and annual rainfall in the River Nile riparian countries and possible linkages to ocean–atmosphere interactions 

    Onyutha, Charles (Hydrology Research, 2016)
    Variability analyses for the rainfall over the Nile Basin have been confined mostly to sub-basins and the annual mean of the hydroclimatic variable based on observed short-term data from a few meteorological stations. ...
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    Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa 

    Onyutha, Charles (Onyutha, C. (2016). Geospatial trends and decadal anomalies in extreme rainfall over Uganda, East Africa. Advances in Meteorology, 2016. http://dx.doi.org/10.1155/2016/6935912, 2016)
    Trends 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 ...
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    Uncertainties in Flow-Duration-Frequency Relationships of High and Low Flow Extremes in Lake Victoria Basin 

    Onyutha, Charles; Willems, Patrick (Water, 2013)
    This paper focuses on uncertainty analysis to aid decision making in applications of statistically modeled flow-duration-frequency (FDF) relationships of both daily high and low flows. The analysis is based on 24 selected ...
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    Statistical analyses of potential evapotranspiration changes over theperiod 1930–2012 in the Nile River riparian countries 

    Onyutha, Charles (Agricultural and Forest Meteorology, 2016)
    Changes in potential evapotranspiration (PET) in the Nile Basin tend to be analyzed mostly based onshort-term remotely sensed annual data. In this study, long-term country-wide series from 1930 to 2012were used to assess ...
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    Investigation of flow-rainfall co-variation for catchments selected based on the two main sources of River Nile 

    Onyutha, Charles; Willems, Patrick (Stochastic environmental research and risk assessment, 2018)
    The co-variation of rainfall and flow was assessed in four selected catchments of the River Nile which has two main sources including the White Nile (in the Equatorial region) and the Blue Nile (from the Ethiopian highlands). ...
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    Identification of sub-trends from hydro-meteorological series 

    Onyutha, Charles (Stochastic environmental research and risk assessment, 2016)
    In hydro-meteorological trend analysis, an alteration in the given variable is detected by considering the long-term series as a whole. Whereas the long-term trend may be absent, the significance of hidden (short-dura ...
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    Trends and variability in African long-term precipitation 

    Onyutha, Charles (Stochastic Environmental Research and Risk Assessment, 2018)
    African precipitation trends are commonly analyzed using short-term data observed over small areas. This study analyzed changes in long-term (1901–2015) annual and seasonal precipitation of high spatial (0.5 9 0.5 grid) ...
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    Author
    Onyutha, Charles (19)
    Willems, Patrick (9)Tabari, Hossein (2)Choubin, Bahram (1)Nyandwaro, Gilbert N. (1)Nyeko-Ogiramoi, Paul (1)Omidvar, Ebrahim (1)Pirniaa, Abdollah (1)Rutkowska, Agnieszka (1)Taye, Meron T. (1)... View More
    Subject
    Trend analysis (6)Climate variability (4)Climate indices (3)Extreme value analysis (3)Rainfall variability (3)Floods (2)Hydrological extremes (2)Lake Victoria basin (2)Rainfall (2)Rainfall extremes (2)... View More
    Date Issued
    2016 (8)2017 (3)2019 (3)2015 (2)2018 (2)2013 (1)
    Has File(s)
    Yes (19)

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