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Dr. (Mrs) M. M. G. T. De Silva

Senior Lecturer

Dr. (Mrs) M. M. G. T. De Silva

Office Address:
Department of Civil Engineering,
University of Peradeniya,
Peradeniya, 20400, Sri Lanka.

Educational Qualification

  1. 2019 – PhD, University of Tokyo , Tokyo, Japan
  2. 2013 – MPhil, University of Peradeniya, Sri Lanka
  3. 2007 – BSc.Eng (Hons), University of Peradeniya, Peradeniya, Sri Lanka
  1. Climate Change Analysis
  2. Hydrological and Hydro-dynamic Analyses
  3. Socio-hydrology
  4. Drought Analysis
  5. Flood modeling
  1. Sep. 2020 – To date: Senior Lecturer (Grade II), Department of Civil Engineering, Faculty of Engineering, University of Peradeniya
  2. Jun. 2019 – Sep. 2020: Temporary Lecturer, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka
  3. Oct. 2015 – Mar. 2019: Doctoral Candidate, Department of Civil Engineering, Graduate School of Engineering, the University of Tokyo, Japan
  4. May 2012 – Sep. 2015: Lecturer, International Training Institute of Irrigation and Water Management, Kothmale, Sri Lanka
  5. Apr. 2009 – Apr. 2012: MPhil Candidate, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka
  6. Oct. 2007 – Jul. 2008: Civil Engineer, Dam Safety and Water Resources Planing Project, Mahaweli Authority of Sri Lanka
  7. Feb. 2007 – Sep. 2007: A11 Road Project, CML – MTD Construction Ltd
  1. Associate Member, Institution of Engineers, Sri Lanka (AMIESL)
  2. Member, Alumni Association of the Department of Civil Engineering, the University of Tokyo, Tokyo, Japan
  3. Associate Member, Institution of Engineers, Sri Lanka (AMIESL)
  4. Associate Engineer, The Engineering Council, Sri Lanka (ECSL)
  5. Member, Peradeniya Engineering Faculty Alumni Association (PEFAA)
  1. Gayanthika, H., Lakshitha, D., Chathuranga, M., De Silva, G., & Sirisena, J. (2025). Comparative Analysis of Satellite-Based Rainfall Products for Drought Assessment in a Data-Poor Region. Hydrology, Vol. 12(7). https://doi.org/10.3390/hydrology12070166
  2. De Silva, M.M.G.T., Kawasaki, A., 2022. Modeling the association between socioeconomic features and risk of flood damage: A local-scale case study in Sri Lanka. Risk Analysis. https://doi.org/10.1111/risa.13894
  3. M.M.G.T. De Silva and Akiyuki Kawasaki, 2018. Socioeconomic Vulnerability to Disaster Risk: A Case Study of Flood and Drought Impact in a Rural Sri Lankan Community. Ecological Economics, Vol. 152, pp. 131-140
  4. M.M.G.T. De Silva and Akiyuki Kawasaki, 2020. A local-scale analysis to understand differences in socioeconomic factors affecting economic loss due to floods among different communities. International Journal of Disaster Risk Reduction, Vol 47
  5. De Silva M. M. G. T., Weerakoon S. B., and Herath S., “Modeling of Event and Continuous Flow Hydrographs with HEC-HMS; Case study in Kelani river basin in Sri Lanka”, ASCE Journal of Hydrologic Engineering, Vol. 19, No. 4, pp 800 – 806, April 1, 2014
  6. Gayanthika, H., Lakshitha, D., Chathuranga, M., De Silva, G., & Sirisena, J. (2025). Comparative Analysis of Satellite-Based Rainfall Products for Drought Assessment in a Data-Poor Region. Hydrology, 12(7), 166. https://doi.org/10.3390/hydrology12070166
  7. De Silva M. M. G. T., Weerakoon S. B., and Herath S., “Event Based Flood Inundation Mapping Under the Impact of Climate Change: A Case Study in Lower Kelani River Basin, Sri Lanka”, Hydrology: Current Research, Vol. 07, issue 1, March 2016
  8. De Silva G. T., S.B. Weerakoon, U.R. Ratnayaka, Srikantha Herath, Sarith Mahanama, Flood inundation mapping along the lower reach of Kelani River basin under the impact of climate change, “ENGINEER” journal, Vol. XXXXV, No. 02, pp 23 – 30, April 2012
  9. De Silva G. T., Herath S., Weerakoon S. B., Rathnayake U. R., Application of WRF with different cumulus parameterization schemes for precipitation forecasting in a tropical river basin, proceeding of the 13th Asian Congress of Fluid Mechanics, Dhaka, Bangladesh, 17 – 21 December 2010
  10. M.M.G.T. De Silva and Akiyuki Kawasaki, September 2018. Assessment of socioeconomic impact due to floods in local scale; A case study in Sri Lanka. World Social Science Forum (WSSF) Fukuoka, Japan
  11. M.M.G.T. De Silva and Akiyuki Kawasaki, November 2017. Socioeconomic impact assessment of frequent water-related disasters in local scale; A case study in Sri Lanka. 16th International Symposium on New Technologies for Urban Safety of Mega Cities in Asia, 2017 (16th USMCA 2017), Sendai, Japan
  12. De Silva M. M. G. T., S. B. Weerakoon, Srikantha Herath, Flood risk analysis under the impact of climate change; A case study in Kelani River basin, Sri Lanka, proceeding of the 14th Asian Congress of Fluid Mechanics, Hanoi, Vietnam, 15th – 19th October 2013
  13. De Silva G. T., Herath S., Weerakoon S. B., Rathnayake U. R., Future rainfall trend analysis at the Kelani river basin in Sri Lanka, 16th Inter-Governmental and Scientific Planning Group Meetings, Asia Pacific Network (APN) for Global Change Research Networking and Poster session, Colombo, Sri Lanka, 6th April 2011 (Runner-up award)
  14. De Silva G. T., Weerakoon S. B., Herath S., Rathnayake U. R., Flood inundation modeling along the lower reach of Kelani River basin under changing climate, proceedings of the 5th UN-CECAR conference on Disaster Risk Management & Sustainability, United Nations University Headquarters, Tokyo, Japan, 15th November 2011
  15. De Silva M. M. G. T. , S.B. Weerakoon, Srikantha Herath, “Statistical approach to forecast rainfall trends in Kelani River basin, Sri Lanka under the impact of climate change”, 8th International Perspective on Water Resources and the Environment, Colombo, Sri Lanka, January 4-6, 2016
  16. De Silva M. M. G. T., Weerakoon S. B., and Herath S., Analysis of future rainfall trends in the Kelani river basin under the impact of climate change, proceeding of the Sri Lanka water convention 2013, Colombo, Sri Lanka, 21st March 2013
  17. De Silva G. T., S. B. Weerakoon, Srikantha Herath, Climate change impacts on floods in Kelani river basin and selected adaptation measures, proceeding of the conference on Sri Lanka – Japan collaborative research 2013, Sri Lanka, 29th – 31st March 2013
  18. M.M.G.T. De Silva and Akiyuki Kawasaki, September 2017. Local-scale impact assessment of flood and drought over different socioeconomic communities in rural Sri Lanka. 5th Conference on Sri Lanka – Japan Collaborative Research, 2017 (5th SLJCR 2017), Peradeniya, Sri Lanka
  19. De Silva G. T., Weerakoon S. B., RatnayakaU. R., Herath S., Forecasting Extreme Rainfall in Kelani River Basin under Changing Climate, Proceedings of the Peradeniya University Research Sessions, Sri Lanka, Volume 16, 24th November 2011
  20. De Silva G. T., Weerakoon S. B., Herath S., Rathnayake U. R., Event based flood inundation modeling in lower Kelani basin, Proceedings of 2nd SAITM Research Symposium on Engineering Advancements (SRSEA) Colombo, Sri Lanka, 27th and 28th April 2012
  21. Dharmapala D.G.S.U.,  Chathuranga B.G.M., and De Silva M.M.G.T., “Evaluation of HEC-HMS and SWAT Models for Long-Term Runoff Simulation in Upper Kelani River Basin, Sri Lanka”, Proceedings of 118th Annual Sessions of the Institution of Engineers, Sri Lanka (IESL), 2024
  22. Gayanthika, H., Lakshitha, D., and De Silva, G. “Accuracy Assessment of Seasonal Satellite Rainfall Estimates Compared to In-situ Observations in Mi Oya River Basin, Sri Lanka”, Proceedings of 118th Annual Sessions of the Institution of Engineers, Sri Lanka (IESL), 2024

  23. Weerawardana, W.P.D.P.S., De Silva, M.M.G.T. and Weerakoon, S.B. (2025). Two-dimensional flow modeling to assess flood inundation reduction in Colombo, Sri Lanka through planned interventions. In: 18th Asian Congress of Fluid Mechanics (ACFM). Seoul, South Korea.

  1.  University Research Grant (2025): Grant No.URG/2025/18/E: Drought Analysis and Sustainable Adaptation in a Tropical River Basin
  2. National Research Council (NRC) of Sri Lanka – Grant No. IDF 24-106 (Co- Investigators)
    Comparative Analysis of Machine Learning and Numerical Weather Prediction Models for Enhanced Local Weather Forecasting and Water Resource Management in Sri Lanka
  3. India–Sri Lanka Workshop Grant 2024 by Ministry of Science and Technology(Co- Investigators): Ensemble-Based Early Warning Systems for Flood Disaster Management. 

Participated as a resource person

  • Workshop on “HEC-HMS modeling” in Colombo
  • Workshop on “Hydrological data management” in Kandy
  • Workshop on “Climate Downscaling” in Lao PDR
  • Workshop on “Hydro-dynamic modeling” in Dhaka
  • Workshop on “Hydro-dynamic modeling” in Colombo
  • Workshop on “Hydro-dynamic modeling” in Kandy

Participated as a participant

  • International Summer Program organized by The University of Tokyo and the International Centre for Water and Risk Management(ICHARM), July/August 2016
  • Short course on Geographic Information Systems (GIS) organized by University of Moratuwa, 2008
  • Geographic Information Systems (GIS) training course organized by United Nations University Headquarters, Tokyo, Japan September 2010
  • 6th International Advisers’ Conference and workshop on “Linking Science and Society: Action-oriented and Inclusive Approaches to Face Poverty” organized by Kyoto University, January 2017
  • ISO 9001:2008 Standard, preparation of quality manual and internal auditing for ISO 9001:2008 quality management systems organized by Sri Lanka Standards Institution, November 2013 
  • Training of Trainers/Training Managers jointly organized by Distance Learning Centre Ltd (DLC) and Ministry of Irrigation and Water Resources Management, April 2012
  • Climate Change Downscaling Approaches and Applications organized by United Nations University Headquarters, Tokyo, Japan November 2011
  • Building Resilience to Climate Change Part I: Science, Impacts and Vulnerability and Part II: Approaches to Climate Change Adaptation organized by United Nations University Headquarters, Tokyo, Japan September 2010

MPhil:
o Comparative analysis of machine learning and numerical weather prediction models for enhanced local weather forecasting and water resource management in Sri Lanka

MScEng:
o Evaluation of structural interventions for flood resilience in the Colombo metropolitan region,
Sri Lanka, using two-dimensional flood modeling.
o Flood Risk Assessment in Deduru oya basin, Sri Lanka
o Integrated Flood Mitigation Strategies for Urban Resilience; A Case Study of Low lying Areas in Colombo
o Statistical Evaluation and Hydrological Simulation Capacity of Satellite-Based Precipitation Products in the Malwathu Oya River Basin, Sri Lanka
o Integrated hydro-meteorological drought analysis in Manik Ganga basin, Sri Lanka

MEng
o Development of Rainfall-Runoff Model for “Manik Ganga” River Basin Sri Lanka
o Rainfall runoff modelling study for Kalawalappu Aru river basin in Kilinochchi district
o Rainfall-runoff modeling for Meiyankal river for the improvement of Meiyankal tank

  1. MEXT scholarship for reading Doctor of Philosophy degree by the government of Japan (Oct. 2015 – Sep. 2018)
  2. International Master Scholarship for reading Master of Philosophy degree by the United Nations University, Tokyo, Japan (Jun. 2009 – Jan. 2012)

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