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Nonparametric estimator for the standardized sum using edgeworth expansions
(International Journal of Scientific Research, 2018-02-01)
Constructing an estimator for functional estimation is one of the problems in statistical inference. In this paper, the problem of constructing an estimator for a studentized sum is considered in the nonparametric set-up. ...
Temporal analysis of drought in Mwingi sub-county of Kitui County in Kenya using the standardized precipitation index (SPI)
(discovery journals : Climate Change, 2018-12-01)
This study attempts to temporally characterize drought using Standardized Precipitation Index (SPI) over Mwingi Sub-County of Kenya. Rainfall data spanning 1961-2011 over the area of study was used to determine SPI values ...
Optical characterization of atmospheric aerosols via airborne spectral imaging and self-organizing map for climate change diagnostics
(2018-08-03)
Self-Organizing Map (SOM) analysis is used to perform optical characterization of both Aerosol Optical Depth (AOD) and Ångström Exponent (ÅE) retrieved from Moderate-resolution Imaging Spectroradiometer (MODIS) in relation ...
Heavy metal contamination at dumpsites at Eldoret, Kenya, in the Lake Victoria Basin
(Ajol: African Journal of Tropical Hydrobiology and Fisheries, 2018-06-01)
This study assessed the heavy metals concentrations in municipal solid wastes at Eldoret Mwenderi dumpsites located at the shores of river Sosiani within the Lake Victoria Basin, Kenya. Concentrations of the three heavy ...
Spatial-temporal characterization of atmospheric aerosols via airborne spectral imaging and growing hierarchical self-organizing maps
(Scientific Research Publishing, 2018-06-25)
Neural network analysis based on Growing Hierarchical Self-Organizing Map (GHSOM) is used to examine Spatial-Temporal characteristics in Aerosol Optical Depth (AOD), Ångström Exponent (ÅE) and Precipitation Rate (PR) over ...
Seasonal variability in aerosol microphysical properties over selected rural, urban and maritime sites in Kenya
(2018)
Atmospheric aerosols are posing a great threat to the already stressed climate with the effects being felt more on African continent. Their presence and interaction with the clouds contribute to the strongest uncertainty ...
The effect of climate change on loss of lake volume: case of sedimentation in central rift valley basin, Ethiopia
(Multidisciplinary Digital Publishing Institute, 2018-12-11)
Evaluating the impact of climate change on sediment yield has become one of the major
topics in climate research. The purpose of this study was to investigate sediment yield contribution to
lake volume change under ...
Long term assessment of aerosol radiative forcing over selected sites of East Africa
(Scientific Research Publishing Inc., 2018-04-02)
Atmospheric aerosols have contributed to radiative forcing through direct and indirect mechanisms. Aerosol effects are important in computing radiative forcing estimates for the past, current and future climate. In this ...
Hybrid single particle simulation of atmospheric pollutants over Bungoma County in Kenya
(Ethiopian Journal of Environmental Studies and Management (EJESM), 2018-12-20)
Microscale dispersion models with different levels of complexity may be used to assess
urban air quality and support decision making for pollution control. Mathematical models
calculate pollutant concentrations by solving ...
Analysis of drought and wet-events using SWSI-based severity-duration-frequency (SDF) curves for the upper Tana river basin, Kenya
(Science Publishing Group, 2018-06-12)
Drought and wet-event patterns in the Upper Tana River basin have significantly been changing due to variation
of climatic and human-induced factors. This paper presents the analysis of drought and wet-events using ...