A5063200780- Climate variability and models
- Climate change impacts on agriculture
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- ICT in Developing Communities
- Hydrology and Drought Analysis
- Energy and Environment Impacts
- ICT Impact and Policies
- Solar Radiation and Photovoltaics
- Aquatic Ecosystems and Biodiversity
- Urban and Rural Development Challenges
- Seed and Plant Biochemistry
- Organizational Change and Leadership
- Agricultural risk and resilience
- demographic modeling and climate adaptation
- Economic and Environmental Valuation
- Human Resource Development and Performance Evaluation
- Crop Yield and Soil Fertility
- Climate Change Policy and Economics
- Competency Development and Evaluation
- Precipitation Measurement and Analysis
- Sustainability and Climate Change Governance
- Plant responses to elevated CO2
University of Nairobi
2017-2024
National Institute of Meteorology
2015
Abstract The vulnerability of social-ecological systems in sub-Saharan Africa (SSA) to climate variability and change means that there is an urgent need better integrate weather information into societal decision-making processes. Long-term adaptation these regions has received increasing attention, with recent initiatives aiming increase resilience at timescales years decades. Less focus been given short-term information. However, users are principally interested shorter (hours seasons)...
Provision of weather and climate services are expected to improve the capacity for rural households' preparedness response plans shocks. With increase in public investments developing communicating information on local scale Nigeria, uncertainty timescales that meet farmers' needs economic value is still poorly understood. It now a policy concern whether preferences demands might its uptake. This study analyzed value, latent demand, emerging market Central-Southern Nigeria. Farm-level...
ABSTRACT Many African countries whose economies are largely based on weather/climate sensitive sectors vulnerable to long‐term changes in weather and climate. This study is aimed at assessing whether the recent decades have observed any significant trend intraseasonal descriptors (ISDs) of wet dry spells local sub‐regional levels seasonal monthly timescales over equatorial eastern Africa (EEA). Daily rainfall observations 36 stations spanning a period 51 years (1962–2012) were used. The has...
Abstract The modulation of the rainfall diurnal cycle at intraseasonal and interannual time scales is examined using gridded data over Eastern Africa nearby Indian Ocean for period 1998–2014. Our focus on October‐December season which strongly impacted by both Madden‐Julian Oscillation (MJO) Dipole Mode (IODM). effect MJO, not synchronized across whole region, mainly through changes in amplitude cycle, especially an enhancement late afternoon peak active phases MJO. phase only shows minor...
The APSIM (Agricultural Production Systems sIMulator) model was used to assess the impact of climate change on sorghum production in semi arid low lands Machakos County under three future scenarios (2010-2039, 2040-2069 and 2070-2099) using two Representative Concentration Pathways (RCPs): RCP 4.5 8.5. calibrated evaluated field experimental data obtained from a two-year experiment (2014 2015) parameters carried out at Kenya Agricultural Livestock Research Organization (KALRO) Katumani....
Abstract Testbeds have become integral to advancing the transfer of knowledge and capabilities from research operational weather forecasting in many parts world. The first high-impact testbed tropical Africa was recently carried out through African Science for Weather Information Forecasting Techniques (SWIFT) program, with participation researchers forecasters Senegal, Ghana, Nigeria, Kenya, United Kingdom, international pan-African organizations. aims were trial new nowcasting products...
The aim of the study was to understand environmental conditions impacting reproductive performance Sahiwal cattle, focusing on temperature, relative humidity, and humidity index (RHI). These factors significantly influence rates, highlighting importance spatio-temporal variability studies for informed herd management decisions. This analyzed climate trends from 1998 2019 at Kenya Agricultural Livestock Research Organization (KALRO) Dairy Institute (DRI)-Naivasha, in Malewa Ward, Naivasha...
It is becoming increasingly important to be able verify the skill of precipitation forecasts, especially with advent high-resolution numerical weather prediction models. This study focused on assessing climate forecast system (CFS) model in predicting rainfall seasonal time scales over East Africa region for period January 1981 December 2009. The seasons considered were March May (MAM) and October (OND). data used included observed totals from 2009 CFS same period. had 15 Runs. measure...