Browsing Journal Articles by Author "Ogwang, Bob A."

Browsing Journal Articles by Author "Ogwang, Bob A."

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  • Ambient Air Quality Monitoring and Audit over Athi River Township, Kenya 
    Ongoma, Victor; Shilenje, Zablon W.; Thiong’o, Kennedy; Ondimu, Kennedy I.; Nguru, Paul M.; Nguyo, John K.; Mukola, Joseph; Ogwang, Bob A.; Tirok, Caroline; Apondo, William (International Journals of Scientific Research Publications, 2015)
    Monitoring of air pollution is an active area of research. A numbers of agencies; environmental, health and governments consider access to clean unpolluted air as a basic requirement for human, plant, animal and environmental ...
  • Application of Z-Index in analysis of recent March-May Drought over Rwanda 
    Ngarukiyimana, Jean P.; Tan, Guirong; Ongoma, Victor; Ogwang, Bob A.; Vuguziga, Floribert (Meteo Romania (National Meteorological Administration), 2016)
    This study analyzed recent extreme weather events in Rwanda with emphasis on drought during March-May (MAM) season using Z-index. Composite analysis identified the years 2009 and 2010 as the most recent dry and wet ...
  • Characteristics and Changes in SON Rainfall over Uganda (1901-2013) 
    Ongoma, Victor; Ogwang, Bob A.; Nimusiima, Alex; Tindamanyire, Teddy; Serwanga, Margaret N.; Ayesiga, Godwin; Ojara, Moses; Ssebabi, Fred; Gugwa, Gordon; Nsubuga, Yusuf; Atim, Rhoda; Kibwika, Robert; Balikudembe, Joseph K.; Kikonyogo, Herbert; Kalema, Abubakar; Taire, Aggrey; Kiryhabwe, Anne; Semujju, Musa; Einyu, Felix; Kituusa, Rashid; Aribo, Lawrence (2016)
    This study investigated the characteristics and changes in September-November (SON) rainfall over Uganda. The dominant mode of variability of SON rainfall was identified by performing Empirical orthogonal ...
  • Contributions of Atlantic Ocean to June - August Rainfall over Uganda and Western Kenya 
    Ongoma, Victor; Gitau, Wilson; Ogwang, Bob A. (2016)
    This study investigates the contributions of Atlantic Ocean to June-August rainfall over Uganda and western Kenya (KU). The study utilized the following datasets: precipitation from the Global Precipitation Climatology ...
  • Diagnosis of East African climate and the circulation mechanisms associated with extreme wet and dry events: a study based on RegCM4 
    Ongoma, Victor; Ogwang, Bob A.; Chen, Haishan; Tan, Guirong; Ntwali, Didier (Springer Berlin Heidelberg, 2015-05-22)
    The latest version of the International Centre for Theoretical Physics (ICTP) regional climate model (RegCM4) is used in this study to examine the East African climate, focusing on October to December (OND) rainfall and ...
  • Diagnosis of the 2010 DJF flood over Zambia 
    Ongoma, Victor; Libanda, Brigadier; Ogwang, Bob A.; Ngonga, Chilekana; Nyasa, Linda (Springer Netherlands, 2016)
    This study diagnoses the circulation anomalies associated with the 2010 December–February (DJF) flood in comparison with the 1992 DJF drought over Zambia. Monthly precipitation data for 39 meteorological stations were ...
  • Dominant atmospheric circulation patterns associatedwith abnormal rainfall events over Rwanda, East Africa 
    Ngarukiyimana, Jean P.; Fu, Yunfei; Yang, Yuanjian; Ogwang, Bob A.; Ongoma, Victor; Ntwali, Didier (Wiley Online Library, 2017-05)
    The study investigated the dominant atmospheric circulation patterns associated with abnormal rainfall overRwanda during the March–May (MAM) rainfall season in 1981–2010. The data sets used in this study include: rainfall,wind, ...
  • The impacts of topography on spatial and temporal rainfall distribution over Rwanda based on WRF model 
    Ongoma, Victor; Ntwali, Didier; Ogwang, Bob A. (2016)
    The impact of topography on heavy rainfall during two rain seasons was investigated in order to explain their mechanisms on rainfall distribution over Rwanda. Weather Research and Forecasting (WRF-ARW) model was used to ...
  • Influence of mascarene high and Indian Ocean dipole on East African extreme weather events 
    Ongoma, Victor; Ogwang, Bob A.; Xing, Li; Ogou, Faustin K. (2015)
    Extreme weather and climate events such as floods and droughts are common in East Africa, causing huge socio-economic losses. This study links the east African October-December (OND) rainfall, Indian Ocean Dipole (IOD) ...
  • Inter-annual variability of Summer Monsoon Rainfall over Myanmar in relation to IOD and ENSO 
    Ongoma, Victor; Sein, Zin Mie M.; Ogwang, Bob A.; Ogou, Faustin K.; Batebana, Kpaikpai (2015)
    Monsoon rainfall has significant impact on socioeconomic welfare of Myanmar. This calls for need to understand rainfall variability in order to minimize socioeconomic losses associated with extreme weather events. This ...
  • Investigation of the atmospheric circulation anomalies associated with extreme rainfall events over the coastal West Africa 
    Ongoma, Victor; Batebana, Kpaikpai; Ogwang, Bob A.; Sein, Zin M. M.; Ogou, Faustin K.; Ngarukiyimana, Jean P. (2016)
    This study investigates the atmospheric circulation associated with extreme rainfall events This study investigates the atmospheric circulation associated with extreme rainfall events over the coastal West Africa. The ...
  • Rainfall characteristics over Togo and their related atmospheric circulation anomalies 
    Ongoma, Victor; Batebana, Kpaikpai; Ogwang, Bob A.; Sein, Zin Mie M.; Ogou, Faustin K.; Ngarukiyimana, Jean P. (2015)
    This study attempts to reveal features of rainfall over Togo, in relationship to theprevailing atmospheric circulation. The study employed correlation analysis and composite analysis in the analysis of rainfall, sea surface ...
  • A secured automatic notification system based on short message service 
    Ongoma, Victor; Mugisha, Emmy; Ogwang, Bob A.; Zhang, Gongxuan (2015-03)
    In this paper, a framework has been implemented for applying a secured automatic notification system. A secured module, containing Rijndael Encryption Algorithm has been proved. The system can: send and receive data ...

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