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DR RAPHAEL MULI WAMBUA

OffLine
Staff Information
PERSONAL DETAILS
Designation
SENIOR LECTURER
Corporate Email
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Job Category
Teaching
Phone Number
+254723797872
Division / Faculty
Faculty of Engineering and Technology
Directorate / Dept
DEPT. OF AGRICULTURAL ENGINEERING
Address
P.O Box 536-20115 Egerton
SUMMARY

 

Responsibility

Year/Date

Achievements

Dean (Ag) Faculty of Engineering and Technology

2022-date

management and coordination of the faculty academic, administrative and research activities  

Chairman of the department of agricultural engineering department

2018-2021

Coordinating general activities involving students and staff

Member of the university senate

2018-Date

Attending senate meetings and representing the department

Member of faculty management board

2018-Date

Attending meetings and participating in faculty of engineering management activities

Appointed to university international conference committee

2018-Date

Participating in organizing conference in the university and representing the faculty of engineering and technology in the committee

 Chief examiner and head of the department

2018-Date

Coordination of academic activities within the agricultural engineering department

Chairman of the board of examiners

2018-Date

Chairing the proposal defense for postgraduate students

Member of faculty board examiners for thesis and proposals

2018-Date

Participating in faculty board of examiners for proposal/thesis defense

Member of board of examiners for postgraduate student thesis

2018-Date

Representing the senate (that is being a Senate representative) in postgraduate thesis defense for selected theses

 

ACADEMIC QUALIFICATIONS

2013-2016: Doctor of Philosophy Degree in Agricultural Engineering, Egerton University, Kenya.

2005-2008: Master of Science Degree in Agricultural Engineering

1998-2004: Bachelor of Science Degree in Agricultural Engineering,  (2ndClass, Upper Division)

1992-1995: Kenya Certificate of Secondary Education (K.C.S.E), Tala High School, passed

1983,1990-1991: Kenya Certificate of Primary Education (K.C.P.E) Kamuya Primary

1984-1989: Primary education - Kalia Primary School (standards 1 to 6)

FIELDS OF SPECIALIZATION

Agricultural Engineering (Soil, Water, Irrigation and Drainage Engineering)

PROFESSIONAL QUALIFICATIONS

Educational Background

Year (From…To…)

Qualification

Course

2013-2016: PhD Degree, Field: Doctor of Philosophy Degree in Agricultural Engineering, Egerton University, Kenya.

2005-2008: Master of Science Degree, Field: Master of Science Degree in Agricultural Engineering

1998-2004: Bachelor of Science Degree, Agricultural Engineering,  (2ndClass, Upper Division)

1992-1995: K.C.S.E. Kenya Certificate of Secondary Education (K.C.S.E), Tala High School, passed

1983,1990-1991

K.C.P.E

Kenya Certificate of Primary Education (K.C.P.E) Kamuya Primary

1984-1989

Primary education

Kalia Primary School (standards 1 to 6)

 

1.1 Field of Specialization

 

Soil and Water Engineering, Irrigation and Drainage Engineering, Water Resources and Environmental Engineering

 

WORK EXPERIENCE
  • April 2018-Date: Senior Lecturer - Teaching, development of lecture manuals, development academic programs, drafting Research Proposals, research implementation,  and Concept notes
  • 2013-April 2018: Lecturer - Egerton University. Teaching, development of lecture manuals, development academic programs, drafting Research Proposals, research implementation,  and Concept notes
  • 2009-2013: Assistant Lecturer  - South Eastern Kenya University. Teaching, development of lecture manuals, development academic programmes, drafting Research Proposals and Concept notes
  • 2008-2009: Lecturer (Part time) - Egerton University, Faculty of Engineering & Technology. Teaching, development of lecture and practical manuals. Organizing and participating in conferences and seminars,
  • 2005-2008: Tutorial Fellow and Demonstrator - Egerton University, Faculty of Engineering &Technology
  • Teaching, instructing, preparing manuals, conducting Engineering Practice, organizing and co-coordinating seminars
  • 1999-2002: Teacher Carmel Girl’s Secondary School.Part-time Teaching, guiding and counseling students
  • 1995-1997: Teacher, Kamuya Primary School. Part-time Teaching, guiding and counseling students
  • 1996-1998: Teacher St. Josephs Boarding primary, Mbiuni. Part-time Teaching, guiding and counseling at the school

   

  • 2018-Date: Chairman of the department of agricultural engineering department - Coordinating general activities involving students and staff
  • 2018-Date: Member of the university senate - Attending senate meetings and representing the department
  • 2018-Date: Member of faculty management board - Attending meetings and participating in faculty of engineering management activities
  • 2018-Date: Appointed to university international conference committee - Participating in organizing conference in the university and representing the faculty of engineering and technology in the committee
  • 2018-Date: Chief examiner and head of the department - Coordination of academic activities within the agricultural engineering department
  • Chairman of the board of examiners
  • 2018-Date: Chairman of the board of examiners - Chairing the proposal defense for postgraduate students
  • 2018-Date: Member of faculty board examiners for thesis and proposals - Participating in faculty board of examiners for proposal/thesis defense
  • 2018-Date: Member of board of examiners for postgraduate student thesis - Representing the senate (that is being a Senate representative) in postgraduate thesis defense for selected theses
KEY PROJECTS

  1. IFC-International Finance Corporation, WORLD BANK GROUP-Provision of consultancy services of setting up crop production centres of excellence Team member-project 2021-on-going

  2. Kenya Climate Smart Agriculture Project (KCSAP) on Validation of mechanized soil and water conservation approaches for sorghum production in the ASALs of Kenya, Co-PI of the on going project

  3.  

    Orange Knowledge (OKP) Water in nexus with agriculture project for development of skills and competencies in thematic areas of water and agriculture, Netherlands Embassy and Government fundinded –project member

  4. Strengthening Capacities for Agricultural Education, Research and Adoption in Kenya (SCARA) SCARA-Appear Project-Funded by Austria Government, team member of the project, completed in 2019

    Selected Journals

    36. Nyokabi E. W, Wambua RM. Okwany R O. (2021). Evaluation of Spatial and Temporal Hydrological Drought Using Surface Water Supply Index in Malewa River Catchment, Naivasha” Journal of Engineering in Agriculture and Environment (JEAE), 7(2): 1-14

    35. de Sousa, L.S., Wambua, R.M., Raude, J.M., Mutua B. M. (2021). Cohesive and non-uniform sediment characteristics in the unlined canal of Chókwè Irrigation Scheme, Mozambique. Journal of  Sediment. Environments.. https://doi.org/10.1007/s43217-021-00058-3

    34. Kinyanjui,S. M., Onyando, J. O. and Wambua, R. M. (2021). Quantitative Analysis of Geomorphologic Characteristics of Amala River Catchment in Kenya, Journal of Engineering Research and Reports, 20(2), 91-106

     33. Nyokabi, E. W., Wambua, R. M. and Okwany, R. O. (2020). Assessment of rainfall, streamflow and reservoir level trends for malewa river catchment, Naivasha, Kenya, Journal of Civil, Construction and Environmental Engineering (JCCEE), 6(1); 1-8.

    32. Sang H., Wambua, R. M. and Raude J. M. (2020). Yield response, water use and water productivity of tomato under deficit sub-surface drip irrigation and mulching, Journal of sustainable research in Engineering, 6(2): 47-55

    31. Lateiro S. S, Wambua, R.M, Raude, J. M. 3 and Mutua, B. M. (2020). Water Flow and Sediment Flux Forecast in the Chókwè Irrigation Scheme, Mozambique, Journal of Water Resource and Protection (JWARP, 12(12):1089-1122.

    30. Amisi E. O., Kundu P. M. and Wambua R. M. (2020). Modeling climate variability influence on river regime in upper Njoro catchment, Kenya, Journal of Civil Construction and Environmental Engineering, 5(5): 126-137.

    29. Wambua, R. M. (2020) Development of a Non-linear Integrated Drought Index (NDI) for managing drought and water resources forecasting in the Upper Tana River basin-Kenya, International journal of environmental sustainability and green technologies (IJESCT), 11(1): 15-33.

    28. Sang, H. J., Wambua, R. M. and Raude, J. M. (2020). Modelling tomato water productivity using Acquacrop model in Njroro Sub-county, Nakuru, Kenya, Journal of Engineering research and Reports, 10(3): 1-13.

    27. Wambua, R. M. (2019). Hydrological drought forecasting using modified Surface Water Supply Index (SWSI) and Stream Flow Drought Index (SDI) in conjunction with Artificial Neural Networks (ANNs), International journal of service science, management, Engineering and Technology (IJSSMET), 10(4): 39-57.

    26. Kilongosi C, Raude J. M., Wambua, R. M., Malesu, M. and Oduor, A. (2019). Assessment of the best moisture conservation in Sorghum production under spate irrigation; a case study of Ewaso Nyiro South Drainage Basin, Journal of sustainable research in engineering, (5(1): 12-24.

    25. Wambua, R. M. (2019). Drought estimation-and-projection using standardized supply-demand-water index and artificial neural networks for upper Tana river basin in Kenya, International journal of applied geospatial research (IJAGR), 10(4): 11-27. 

    24. Lateiro de S., Wambua, R. M., Raude, J. M. and Mutua, B. M. (2019). Assessment of water flow and sedimentation processes in irrigation schemes for decision-support tool development: a case review for Chókwè Irrigation Scheme, Mozambique, AgriEngineering Journal 2019, 1(8), 100–118.

    23. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2018) Detection of Spatial, Temporal and Trend of Meteorological Drought Using Standardized Precipitation Index (SPI) and Effective Drought Index (EDI) in the Upper Tana River Basin, Kenya, Open Journal of Modern Hydrology 08(03):83-100

    22. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2018) Analysis of Drought and Wet-Events Using SWSI-Based Severity-Duration-Frequency (SDF) Curves for the Upper Tana River Basin, Kenya, Hydrology journal,6(2): 43-52.

    21. Namu,P. N., Raude, J. M. , Mutua, B. M. and Wambua, R. M.  (2018)  Determination of Discrete Particles Optimum Design Parameters for Surface Irrigation System Settling Basin,

     Journal of Sustainable Research in Engineering, 4 (2): 33-44.  

    20. Amisi, L., Kundu, P. M., Wambua, R. M. (2018). Heterogeneity in Event-Based Soil Hydrologic Response to Different Land Use Types in Upper River Njoro Catchment, Kenya, Int. Journal of Engineering Management, 2(3): 47-57.

    19. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2017). Analysis of spatial and temporal drought variability in a tropical river basin using Palmer Drought Severity Index (PDSI), International Journal of Water Resources and Environmental Engineering, 9(8): 178-190.

    18. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2017). Characterization of Temporal and Spatial Drought Risk Events Using Surface Water Supply Index (SWSI) in a Tropical River Basin, Civil Engineering, 2(2): 1-10.

    17. Namu, P. N., Raude, J. M.,  Mutua, B. M. and Wambua, R. M. (2017). Prediction of Water Turbidity using Artificial Neural Networks: A Case Study of Kiriku-Kiende Settling Basin in Embu County, Kenya, American Journal of Water Resources 5(3): 54-62.

    16. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2016) Prediction of Missing Hydro-Meteorological Data Series using Artificial Neural Networks (ANN) for Upper Tana River basin, Kenya,  American Journal of Water Resources, 4(2): 35-43.

    15. Wambua, R. M., Akuja, T. E. (2016). Assessment of Water and Soil Management Approaches for Small-Scale Dry Land Farming in Kitui and Makueni Counties, Kenya, International Journal of Agricultural Research and Review,. 4(3): 494-503.

    14. Kauti, M. K., Kanui, T. I., Wambua R. M. and Mwobobia Royford Murangiri, M. R. (2016). Evaluation of Household Soil Conservation Technologies in Arid and Semi-Arid Lands (ASALs) (The Case of Kitui Central, Mulala and Wote Divisions in Kenya,  International Journal of Plant & Soil Science 11(5): 1-7, 2016

    13. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2015).  Spatio-temporal Drought Characterization for the Upper Tana River Basin, Kenya Using Standardized Precipitation Index (SPI), World Journal of Environmental Engineering, 3(4):111-120.

    12. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2015). Hydrological drought frequency estimation using stream flow drought index and modified Gumbel method in upper Tana River basin Int. Journal of current research and review, 7(22): 42-51.

    11. Wycliffe I. Lishenga, Nyaanga D. M. Wambua R. M (2015). Efficacy of hydroponic and soil-based vetiver systems in the treatment of domestic wastewater, Int. Journal of Pure and Applied Sciences and technology, 26(2): 53-63.

    10. Wambua R. M. and Mutua, B. M. (2014). Evaluation of drip irrigation and greenhouse systems in production of tomatoes in arid and semi-arid lands, Kenya European International Journal of Science and Technology, 3(5):  1-12.

    9. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2014). Drought Forecasting Using Indices and Artificial Neural Networks for Upper Tana River Basin, Kenya-A Review Concept, Journal of Civil & Environmental Engineering, 4(4): 1-12.

    8. Wambua, R. M., Mutua, B. M. (2014). Drought Indices Assessment For Sustainable Water Resources Management-A Case Review For Upper Tana River Basin, Kenya, International Journal of Engineering Research and Technology (IJERT), 3(10): 429-438.

    7. Wambua R.M, Mutua, B M, Nyaanga, D. M. and Kundu P (2009). Classification of Catchment Risk Areas Using Spatially Distributed Event-Based Soil Erosion: A case of upper Njoro River Catchment, Kenya (International Journal of Design Nature & Ecodynamics, 3(4); 1-15 (website http://journals.witpress.com/pages/paperinfo.asp?)

    6. Wambua, R. M and Mutua, B. M., and Nyaanga, D. M. (2008). Estimation of spatially distributed event-based runoff and sediment yield within Njoro catchment (International Journal of Pure and Applied Science, 1 (1 ): 39-49.

    5. Kundu, P. M., China, S. and Wambua, R. M. (2009). Quantifying land cover and land use change by remote sensing& GIS techniques in R. Njoro catchment, Kenya, International Journal of Disaster mgnt and risk reduction, 2(1): 1-10.

    4. P.K. Cheruiyot, G.M. Ngunjiri, C. K. W. Ndiema, M. C. Chemelil, R. M. Wambua (2009). Effect of ground insulation and green-house mico-Environment on the rate and quality of biogas production , Botswana Journal of technology, 18 (2):  (website http://ajol.info/index.php/bit/article view/52254)

    3. Wambua, R. M., Mutua, B. M. Kimani, P. K and Nyaanga, D. (2008). Determination of spatially distributed event-based runoff and sediment yield within Njoro river catchment, Kenya. Egerton Journal of Science and Technology

    2. Nyaanga, D. M., Maina, G. G. and Wambua, R. M. (2007). Hammer Mill Throughputs and Power Requirements While Grinding Maize and Wheat, Egerton Journal of Science and Technology series Volume, VII (1); 111-119.

    1. Nyaanga, D. M., Chemelil, M. C. and Wambua, R. M.(2007). Development and Testing of a Portable Hand-operated  Groundnut Sheller-Egerton journal,7:  Special Issue, 2007 (Published)

 Text Books

 3. Wambua, R. M. (2020). Soil and Water management, An introductory textbook, GRIN Verlag publishers, ISBN(pdf): 9783346243973, ISBN (Book):  9783346243980, Munich Germany

2. Wambua, R. M. (2019). Irrigation principles , Theory and applications, GRIN Verlag publishers, Munich, ISBN: 9783668919983

1. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2018). Spatially-distributed event-based runoff, sediment yield and soil erosion, LAP academic publishing, ISBN 9786139583119

 

 

 Book Chapters

1. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2015). Stochastic drought forecasting exploration for water resources management in the upper Tana River Basin, Kenya, Handbook of research on computational simulation and modeling in Engineering, Section 3; Civil and Environmental Engineering, Chapter 17: 508-539.

 

 

 

RESEARCH INTERESTS
  • Hydrological and drought modeling and or simulation
  • Forecasting water resources systems/hydrological events using artificial neural networks
  • Water Resources and Environmental Engineering
  • Natural Resources Management using GIS and Remote Sensing
  • Climate Change and its Impact on Water Resources
  • Science, Innovation and technology development in Water Resources Engineering/ Agricultural Engineering
  • Sustainable Soil and Water Conservation Engineering
LIST OF PUBLICATIONS
  1. Kinyanjui,S. M., Onyando, J. O. and Wambua, R. M. (2021). Quantitative Analysis of Geomorphologic Characteristics of Amala River Catchment in Kenya, Journal of Engineering Research and Reports, 20(2), 91-106, https://doi.org/10.9734/jerr/2021/v20i217268
  2. Nyokabi, E. W., Wambua, R. M. and Okwany, R. O. (2020). Assessment of rainfall, streamflow and reservoir level trends for malewa river catchment, Naivasha, Kenya, Journal of Civil, Construction and Environmental Engineering (JCCEE), 6(1); 1-8.
  3. Sang H., Wambua, R. M. and Raude J. M. (2020). Yield response, water use and water productivity of tomato under deficit sub-surface drip irrigation and mulching, Journal of sustainable research in Engineering, 6(2): 47-55
  4. Lateiro S. S, Wambua, R.M, Raude, J. M. 3 and Mutua, B. M. (2020). Water Flow and Sediment Flux Forecast in the Chókwè Irrigation Scheme, Mozambique, Journal of Water Resource and Protection (JWARP, 12(12):1089-1122.
  5. Amisi E. O., Kundu P. M. and Wambua R. M. (2020). Modeling climate variability influence on river regime in upper Njoro catchment, Kenya, Journal of Civil Construction and Environmental Engineering, 5(5): 126-137.
  6. Wambua, R. M. (2020) Development of a Non-linear Integrated Drought Index (NDI) for managing drought and water resources forecasting in the Upper Tana River basin-Kenya, International journal of environmental sustainability and green technologies (IJESCT), 11(1): 15-33.https://econpapers.repec.org/article/iggjagr00/v_3a10_3ay_3a2019_3ai_3a4_3ap_3a11-27.htm
  7. Sang, H. J., Wambua, R. M. and Raude, J. M. (2020). Modelling tomato water productivity using Acquacrop model in Njroro Sub-county, Nakuru, Kenya, Journal of Engineering research and Reports, 10(3): 1-13.
  8. Wambua, R. M. (2019). Hydrological drought forecasting using modified Surface Water Supply Index (SWSI) and Stream Flow Drought Index (SDI) in conjunction with Artificial Neural Networks (ANNs), International journal of service science, management, Engineering and Technology (IJSSMET), 10(4): 39-57.https://ideas.repec.org/a/igg/jssmet/v10y2019i4p39-57.html
  9. Kilongosi C, Raude J. M., Wambua, R. M., Malesu, M. and Oduor, A. (2019). Assessment of the best moisture conservation in Sorghum production under spate irrigation; a case study of Ewaso Nyiro South Drainage Basin, Journal of sustainable research in engineering, (5(1): 12-24.
  10. Wambua, R. M. (2019). Drought estimation-and-projection using standardized supply-demand-water index and artificial neural networks for upper Tana river basin in Kenya, International journal of applied geospatial research (IJAGR), 10(4): 11-27. https://econpapers.repec.org/article/iggjagr00/v_3a10_3ay_3a2019_3ai_3a4_3ap_3a11-27.htm
  11. Lateiro de S., Wambua, R. M., Raude, J. M. and Mutua, B. M. (2019). Assessment of water flow and sedimentation processes in irrigation schemes for decision-support tool development: a case review for Chókwè Irrigation Scheme, Mozambique, AgriEngineering Journal 2019, 1(8), 100–118.
  12. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2018) Detection of Spatial, Temporal and Trend of Meteorological Drought Using Standardized Precipitation Index (SPI) and Effective Drought Index (EDI) in the Upper Tana River Basin, Kenya, Open Journal of Modern Hydrology 08(03):83-100, DOI: 10.4236/ojmh.2018.83007
  13. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2018) Analysis of Drought and Wet-Events Using SWSI-Based Severity-Duration-Frequency (SDF) Curves for the Upper Tana River Basin, Kenya, Hydrology journal,6(2): 43-52,doi: 10.11648/j.hyd.20180602.11
  14. Namu,P. N., Raude, J. M. , Mutua, B. M. and Wambua, R. M.  (2018)  Determination of Discrete Particles Optimum Design Parameters for Surface Irrigation System Settling Basin, Journal of Sustainable Research in Engineering, 4 (2): 33-44.  
  15. Amisi, L., Kundu, P. M., Wambua, R. M. (2018). Heterogeneity in Event-Based Soil Hydrologic Response to Different Land Use Types in Upper River Njoro Catchment, Kenya, Int. Journal of Engineering Management, 2(3): 47-57.
  16. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2017). Analysis of spatial and temporal drought variability in a tropical river basin using Palmer Drought Severity Index (PDSI), International Journal of Water Resources and Environmental Engineering, 9(8): 178-190.
  17. Wambua, R. M. Mutua, B. M. and Raude, J. M. (2017). Characterization of Temporal and Spatial Drought Risk Events Using Surface Water Supply Index (SWSI) in a Tropical River Basin, Civil Engineering, 2(2): 1-10.
  18. Namu, P. N., Raude, J. M.,  Mutua, B. M. and Wambua, R. M. (2017). Prediction of Water Turbidity using Artificial Neural Networks: A Case Study of Kiriku-Kiende Settling Basin in Embu County, Kenya, American Journal of Water Resources 5(3): 54-62.
  19. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2016) Prediction of Missing Hydro-Meteorological Data Series using Artificial Neural Networks (ANN) for Upper Tana River basin, Kenya,  American Journal of Water Resources, 4(2): 35-43, https://doi.org/10.5897/IJWREE2017.0723
  20. Wambua, R. M., Akuja, T. E. (2016). Assessment of Water and Soil Management Approaches for Small-Scale Dry Land Farming in Kitui and Makueni Counties, Kenya, International Journal of Agricultural Research and Review,. 4(3): 494-503.
  21. Kauti, M. K., Kanui, T. I., Wambua R. M. and Mwobobia Royford Murangiri, M. R. (2016). Evaluation of Household Soil Conservation Technologies in Arid and Semi-Arid Lands (ASALs) (The Case of Kitui Central, Mulala and Wote Divisions in Kenya,  International Journal of Plant & Soil Science 11(5): 1-7, 2016
  22. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2015).  Spatio-temporal Drought Characterization for the Upper Tana River Basin, Kenya Using Standardized Precipitation Index (SPI), World Journal of Environmental Engineering, 3(4):111-120,http://pubs.sciepub.com/wjee/3/4/2
  23. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2015). Hydrological drought frequency estimation using stream flow drought index and modified Gumbel method in upper Tana River basin Int. Journal of current research and review, 7(22): 42-51.
  24. Wycliffe I. Lishenga, Nyaanga D. M. Wambua R. M (2015). Efficacy of hydroponic and soil-based vetiver systems in the treatment of domestic wastewater, Int. Journal of Pure and Applied Sciences and technology, 26(2): 53-63.
  25. Wambua R. M. and Mutua, B. M. (2014). Evaluation of drip irrigation and greenhouse systems in production of tomatoes in arid and semi-arid lands, Kenya European International Journal of Science and Technology, 3(5):  1-12,Corpus ID: 73646135
  26. Wambua, R. M., Mutua, B. M. and Raude, J. M. (2014). Drought Forecasting Using Indices and Artificial Neural Networks for Upper Tana River Basin, Kenya-A Review Concept, Journal of Civil & Environmental Engineering, 4(4): 1-12,DOI: 10.4172/2165-784X.1000152
  27. Wambua, R. M., Mutua, B. M. (2014). Drought Indices Assessment For Sustainable Water Resources Management-A Case Review For Upper Tana River Basin, Kenya, International Journal of Engineering Research and Technology (IJERT), 3(10): 429-438.
  28. Wambua R.M, Mutua, B M, Nyaanga, D. M. and Kundu P (2009). Classification of Catchment Risk Areas Using Spatially Distributed Event-Based Soil Erosion: A case of upper Njoro River Catchment, Kenya (International Journal of Design Nature & Ecodynamics, 3(4); 1-15 (website http://journals.witpress.com/pages/paperinfo.asp?)
  29. Wambua, R. M and Mutua, B. M., and Nyaanga, D. M. (2008). Estimation of spatially distributed event-based runoff and sediment yield within Njoro catchment (International Journal of Pure and Applied Science, 1 (1 ): 39-49.
  30. Kundu, P. M., China, S. and Wambua, R. M. (2009). Quantifying land cover and land use change by remote sensing& GIS techniques in R. Njoro catchment, Kenya, International Journal of Disaster mgnt and risk reduction, 2(1): 1-10.
  31. P.K. Cheruiyot, G.M. Ngunjiri, C. K. W. Ndiema, M. C. Chemelil, R. M. Wambua (2009). Effect of ground insulation and green-house mico-Environment on the rate and quality of biogas production , Botswana Journal of technology, 18 (2):  (website http://ajol.info/index.php/bit/article view/52254)
  32. Wambua, R. M., Mutua, B. M. Kimani, P. K and Nyaanga, D. (2008). Determination of spatially distributed event-based runoff and sediment yield within Njoro river catchment, Kenya. Egerton Journal of Science and Technology
  33. Nyaanga, D. M., Maina, G. G. and Wambua, R. M. (2007). Hammer Mill Throughputs and Power Requirements While Grinding Maize and Wheat, Egerton Journal of Science and Technology series Volume, VII (1); 111-119.
  34. Nyaanga, D. M., Chemelil, M. C. and Wambua, R. M.(2007). Development and Testing of a Portable Hand-operated  Groundnut Sheller-Egerton journal,7:  Special Issue, 2007 (Published)
CONFERENCES & INVITED PRESENTATIONS

 

Nyokabi, E. W, Wambua, R. M & R.O. Okwany (2022). Forecasting of hydrological drought using surface water supply index and streamflow drought index at Malewa River Catchment, Naivasha, Kenya,  Egerton university, 14th biennial international conference, 23rd-25th March 2022

Amisi, L., Kundu, P. M., Wambua, R. M. (2021). Modelling Future Scenarios Of Climate Variability Impact On River Discharge, Africa Farm Management Association (AFMA) 12th  Conference 22nd November, Panari Hotel, Nairobi, Kenya

Kinyanjui, S. M., Onyando, J. O., Wambua, R, M. (2021). Spatial Surface Water Flows Estimation Using Quantitative Geomorphology and SWAT in an Agricultural Catchment, Symbosium for GIS and Erath Observation for water sector held at Kenya Water Institute, June 24-25th 2021

Higher education partnership for sub-saharan Africa (HEPSSA). Theme; university-industry collaboration and delivery of engineering academic programmes in the wake of covid-19 pandemic, organized by Moi University, 4th -5th February, 2021, Merica Hotel, Nakuru Kenya (Virtually attended)

Omondi, B., Mutua,  B. M., and Wambua, R. M. (2019). Evaluation of stream flow response to agricultural water abstraction and its viability with rainfall for Thiba river watershed, Kenya, Kibabii University conference 2019.

Wambua, R. M. (2016).  Integrated water resources management, ‘theme: enhancing livelihoods through Dryland Agriculture in Kenya’s Arid and Semi-arid lands, Chemeron Dryland Research Training and Ecotourism Centre, Baringo 3rd-5th May 2016.

Wambua, R. M., Mutua, B. M. and Raude J. M. (2015) Drought forecasting under climate change scenarios using ANNs for sustainable water resources management in Upper Tana River basin , Kenya,  Paper presented at international conference held in in Dresden NEXUS conference United Nations University DNC2015 on   25th to 27th march 2015.

Wambua, R. M., Mutua, B. M.  (2014).  On-farm performance of drip irrigation and greenhouse systems in production of tomatoes in arid and semi-arid lands (ASALs),, The 8th Egerton University international conference proceedings, 26th-28th March, Egerton University, Kenya

Ndungu, P.  M., Ngunjiri,G. M. N.,  Nyaanga,  Wambua, R. M. (2014). Characterization and Rate of Biogas Production of Selected Mixtures of Livestock Droppings, 6th International Conference on Appropriate Technology Kenyatta University Conference Center November 25th to 29th 2014, Nairobi, Kenya

 

TEACHING AREAS

Undergraduate Teaching

  • Teaching undergraduate Bachelor of Science students in Agricultural Engineering, Water and Environmental Engineering. This include students in their third, fourth and fifth academic years of study. The teaching involve both theory and practical in various courses mainly Engineering Survey, irrigation and drainage engineering, research methods, Agricultural and Domestic Waste Management, hydrology
  • Teaching of other undergraduate students undertaking Bachelor of Science in Agricultural Education and Extension, Horticulture, Agriculture, Animal Science, Veterinary Medicine. The main courses are Soil and Water Management Farm Structures, Water Resources Development, Agro-climatology

Selected Undergraduate Projects Supervised

  • Design, fabrication and performance testing of a motorized Potato chipper 2015
  • Design of a rotating drum briquetting machine 2016
  • Design of gravity filtration system for Dewatering human sludge 2016

 

Postgraduate TeachingT

  • eaching postgraduate students training for Master of Science in Agricultural Engineering, Water Resources and Environmental Management, Soil and Water Engineering. The teaching include theory and application of courses such as Research Methods, Hydraulic Structures, Irrigation and Drainage Engineering.
POSTGRADUATE SUPERVISION
MASTERS LEVEL :

  13.1 Theses Supervised as Lecturer  

Francis Musyoka. MSc. Thesis, Title ‘Assessing the Impact of Climate Change on Hydropower Generation in Kenya’: (MSc Water Resources)-Completed 2017

Brian Omondi, MSc. Thesis, Title ‘Modelling the Impacts of Expansion of Mwea Irrigation Scheme on the Flow Regime of Thiba River, Kenya Using HEC-GEOHMS/HEC-HMS’Completed-2017

Johnstone Mainye, MSc. Thesis, Title ‘Modelling the Effect of Rainfall Magnitude on Runoff, Soil Erosion and Sediment Yield in Sosiani Catchment In Kenya Using ArCSWAT’ ‘Completed 2017

 

  13.2 Supervised Thesis as a Senior Lecturer (2018-2022)

Amisi E. MSc Thesis title, Evaluation and Forecasting of Climate Variability Impact On Spatio-Temporal Distribution of Stream Flow in River Njoro Catchment, Kenya, graduated 2021

Kinyanjui S. M. MSc Thesis title, Modelling Surface Water Flow for Ungauged Sites Within the Upper Mara River Catchment Using Geomorphologic Characteristics, graduated 2021

 John Twesige,  MSc Thesis, Title, Hydrological Response to Land use and Land Cover Change (LULC) in Katonga River Basin, Uganda, (MSc Water Resources- PAUWES- University of Tlemcen ) completed 2019

Kilongosi C. M. MSc. Thesis, Title ‘Estimation of Crop Water Requirement and spate irrigation demand using remote sensing and geographic information system in Kwenia sub-catchment, Kajiado County’ completed 2019

Leah Amisi, MSc Thesis, Title, Response Of Event-Based Soil Hydrological Functioning To Land Use In Upper River Njoro Catchment, Graduated 2019

PhD. LEVEL :

  1. Lateiro Salvador de Sousa, PhD, Thesis Title hydraulic and operational performances of Chókwè irrigation scheme in Mozambique, in view of sedimentation-PhD graduated 2021.

 Students being supervised 

Nyokabi E. W. MSc Thesis title, Evaluation and Forecasting of Hydrological Drought Us ing SDI and SWSI In Malewa River Catchment, gradu 

 

14.0 Externally Examined Thesis

 Alimi, H., University of Tlemcen, MSc theis title ‘Spatial and temporal variability of rainfall under an arid climate condition:  Case of Gafsa Basin, Southern Tunisia, November 2021

Araba, J. I.,  University of Tlemcen , MSc thesis title ‘Assessment of land use and land cover (LULC) changes and its environmental impacts - The case of Lake Ziway catchment, Central Rift Valley of Ethiopia, November 2021

Pius K. Chebo, University of Eldoret, MSc thesis title ‘Water Retention and Yields of Rice Crop under Different Ploughing Techniques in Maugo Irrigation Scheme, Homa Bay County’ May –June 2021

Oludare Sunday Durodola, University of Tlemcen, MSc thesis title Modelling the impacts of climate change on water and crop productivity in Ogun-Osun River Basin, Nigeria, Graduated 2020

Honorine MUGIRANEZA, University of Tlemcen,  MSc Thesis Title  ‘Application of GeoWEPP model for assessing the impact of land use changes and conservation practices on soil loss and sediment yield. A case study of Nyabarongo reservoir catchment, Rwanda’ graduated November 2020

Utashi Docile , University of Tlemcen,MSc Thesis title ‘Design of sustainable water supply network of Goma Township in Democratic Republic of Congo November 2020’

Gedeon Too, University of Eldoret, MSc Thesis Title ‘Effectiveness of the use of water resource in surface irrigation, a case study of Ahero irrigation scheme ‘Graduated 2019

 

OTHER SOCIETIES

    6.0 Professional Membership

1. Member-Institution of Engineers of Kenya, 2021 (GIEK Membership No. G.9347)

2. Member-Kenya society of agricultural and biological and Environmental engineers (KeSEBAE) K20092)

3. Member (MIAgrE)-Registered as an international Member of Institution of Agricultural Engineers (MIAgrE) as a member in 2016 (Membership No. 42668)

4. memebr (G. Reg. Engineer)-Engineers Board of Kenya (EBK) 2011 registered Engineer G. Reg. EBK (Membership No. B 6731)

5. Member-The World Association of Soil and Water Conservation (WASWC), registered as a member in 2007.

6. Member-Registered with the Kenya Society of Agricultural Engineers (KSAEw), 2007

7. Member-Registered as a Member of Eastern Africa Water Association (EAWA), 2008

8. Member-Registered with Greater Horn of Africa Rainwater Partnership (GHARP) Kenya Rainwater Association (KRA): Promoting Rainwater-Harvesting and Utilization, 2011

 

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