Dr. Panduka Neluwala currently serves as a Senior lecturer at the Faculty of Engineering, University of Peradeniya, Sri Lanka. In his current department, he works attached to the Fluid and Environmental Engineering Laboratory. Dr. Panduka obtained his BSc (Hons) Civil Engineering degree from the University of Peradeniya with First-Class Honors in 2012 with two awards. He received his MEng from The University of Tokyo in 2015 with the Furuichi Kimatake Prize for Outstanding Master Thesis. He received his PhD from the same in 2018. His research interests include climate change, flood prediction and water resource management. His teaching commitments include Engineering Hydrology and Hydraulics. He has presented his research at many international conferences over the past years. Dr. Panduka is the Director of Sri Lanka- Japan Study centre, and he serves as the President of Civil Engineers' Society, the University of Peradeniya for the year 2021/2022. He is currently a member of the International Water Association (IWA) and an associate member of the Institute of Engineers, Sri Lanka (IESL)

• 2018 - PhD, University of Tokyo , Tokyo, Japan
• 2015 - MEng, University of Tokyo , Tokyo, Japan
• 2012 - BSc.Eng (Hons), University of Peradeniya, Peradeniya, Sri Lanka

• Flood Prediction and Mitigation
• Climate Change
• Weather Prediction
• Dam Safety

• Oct. 2024 - Present:Acting Director, International Relations Office (InRO), University of Peradeniya
• 2021 - 2023: Visiting Lecturer, Department of Civil Engineering, Faculty of Engineering, Open University of Sri Lanka, Sri Lanka
• Nov. 2022 - Nov. 2023: Director, Sri Lanka Japan Study Centre, University of Peradeniya
• Sep. 2020 - To Date: Senior Lecturer Gr II , Department of Civil Engineering, Faculty of Engineering, University of Peradeniya
• Aug. 2020 - To Date: Associate Research Fellow, Institute of Industrial Science, The University of Tokyo
• Oct. 2018 - Sep. 2020: Lecturer (Probationary), Department of Civil Engineering, Faculty of Engineering, University of Peradeniya
• Jun. 2012 – Jul. 2013: Temporary Lecturer, Department of Civil Engineering, Faculty of Engineering, University of Peradeniya, Sri Lanka

• Member, International Water Association
• Associate Member, Institution of Engineers, Sri Lanka (AMIESL)
• Green Associate Professional, Green Building Council Sri Lanka

• Awarded the "Furuichi Kimatake Prize" from The University of Tokyo for Outstanding Master Thesis
• Awarded "The S D & C C Award" for the best Paper by an Associate Member published in the "Engineer" Journal of IESL during the Session 2013/2014 to N.G.P.B. Neluwala, K.T.S. Karunanayake, K.B.G.M. Sandaruwan and K.P.P. Pathirana for the Paper titled " Characteristics of Hydraulic Jumps over Rough Beds - An Experimental Study"
• Awarded the "Ceylon Development Engineering Prize for Best Performance in Civil Engineering" by University of Peradeniya at the Convocation holden in Peradeniya
• Awarded the "J.B. Dissanayake Prize for Industrial Training" by University of Peradeniya at the Convocation holden in Peradeniya
• Awarded the "Migara Ranathunga Trust Award" from Institute of Engineers Sri lanka (IESL) for best Civil Engineering Undergraduate Training in the year 2012
• Awarded "Deshabandu Dr. A.N.S. Kulasinghe" Memorial Scholarship from State Engineering Corporation for obtaining highest GPA in the Second Year in Civil Engineering stream in Faculty of Engineering, University of Peradeniya.
• "Vortex" award for best performance in newsletter committee in the year 2009

Journal Papers :

• Perera, P.L.L.N., Neluwala, N.G.P.B. and Wijetunge, J.J., 2024. Influence of weather research and forecasting model microphysics and cumulus schemes for forecasting monsoon rainfall over the Kelani River basin, Sri Lanka. Journal of Water and Climate Change, p.jwc2024291 https://doi.org/10.2166/wcc.2024.291
• Peramuna, P.D.P.O., Neluwala, N.G.P.B., Wijesundara, K.K., Venkatesan, S., De Silva, S. and Dissanayake, P.B.R., 2024. Novel approach to the derivation of dam breach parameters in 2D hydrodynamic modeling of earthquake induced dam failures. Science of the total environment, 927, p.171505 https://doi.org/10.1016/j.scitotenv.2024.171505
• Sadushan, S. and Neluwala, N.G.P.B., 2024. Application of GIS & RS in Rainwater Harvesting for an Arid Region. ENGINEER, 57(02), pp.69-80 https://doi.org/10.4038/engineer.v57i2.7650
• Koswaththa, H.M.S.A., Ranasinghe, S.K., Ekanayake, I., Herath, D. and Neluwala, N.G.P.B., 2024. Downscaling Future Precipitation over Mi Oya River Basin using Artificial Neural Networks. ENGINEER, 57(02), pp.57-67 https://doi.org/10.4038/engineer.v57i2.7649
• Abeyratne, W.M.L.K., Weerakoon, S.B., Neluwala, P. and Ratnaweera, H., 2023. Suspended solid removal efficiency of plate settlers and tube settlers analysed by CFD modelling. Water Science and Technology, 87(9), pp.2116-2127. https://doi.org/10.2166/wst.2023.107
• Peramuna, P.D.P.O., Neluwala, N.G.P.B., Wijesundara, K.K., DeSilva, S., Venkatesan, S. and Dissanayake, P.B.R., 2023. Review on model development techniques for dam break flood wave propagation. Wiley Interdisciplinary Reviews: Water, p.e1688 https://doi.org/10.1002/wat2.1688
• Wijetunge, J.J. and Neluwala, N.G.P.B., 2023. Compound flood hazard assessment and analysis due to tropical cyclone-induced storm surges, waves and precipitation: a case study for coastal lowlands of Kelani river basin in Sri Lanka. Natural Hazards, 116(3), pp.3979-4007. https://doi.org/10.1007/s11069-023-05846-w
• Wanasinghe, W.M.A.Y., Gamage, K.H., Neluwala, N.G.P.B. and Gimhan, P.G.S., 2023. Performance of Different Parameterization Configurations of WRF-ARW Model during Heavy Rainfall over Mi Oya River Basin. ENGINEER, 56(01), pp.31-41. https://doi.org/10.4038/engineer.v56i1.7558
• Gimhan, P.G.S., Neluwala, P., Acierto, R.A. and Raghavan, S.V., 2022. Assessment of WRF microphysics and cumulus parameterizations in simulating heavy rainfall events over Badulu Oya catchment, Sri Lanka. Journal of Water and Climate Change. https://doi.org/10.2166/wcc.2022.371
• Gimhan, P.G.S., Neluwala, P. & Acierto, R.A., 2023. High-resolution WRF simulations of a monsoon event (2019) over the Badulu Oya Catchment, Sri Lanka: Role of cumulus parameterization condition and microphysics schemes. J Earth Syst Sci 132, 166 https://doi.org/10.1007/s12040-023-02186-y
• Tennekoon Mudiyanselage, S., Wijesundara, K., Venkatesan, S., De Silva, S., Dissanayake, R., & Neluwala, P., 2023. Significance of construction sequence and the initial behaviour in concrete-faced rockfill dams. Australian Journal of Structural Engineering, 25(2), 125–143 https://doi.org/10.1080/13287982.2023.2268288
• Edirisooriya, E.M.N.T., Neluwala, N.G.P.B. and Weerakoon, W.M.S.B., 2022. Flood Inundation Modelling in Greater Colombo Region Using HEC-RAS 2D. Engineer: Journal of the Institution of Engineers, Sri Lanka, 55(3), pp.21–27. DOI: http://doi.org/10.4038/engineer.v55i3.7518
• Bandara, W.H.M.Y.D., Dinelka, K.H.S., Neluwala, N.G.P.B. (2022). Discharge Observations Assimilation to Improve Flood Prediction Skills. In: Dissanayake, R., Mendis, P., Weerasekera, K., De Silva, S., Fernando, S. (eds) ICSBE 2020. Lecture Notes in Civil Engineering, vol 174. Springer, Singapore. https://doi.org/10.1007/978-981-16-4412-2_12
• Abeyratne, W.M.L.K., Weerakoon, S.B., Neluwala, N.G.P.B. (2022). Clarification Efficiency of Plate Settlers Analyzed by CFD Modelling. In: Dissanayake, R., Mendis, P., Weerasekera, K., De Silva, S., Fernando, S. (eds) ICSBE 2020. Lecture Notes in Civil Engineering, vol 174. Springer, Singapore. https://doi.org/10.1007/978-981-16-4412-2_42
• Samarasingha, S.M.T.C., Sandaruwan, M.S., Sampath, D.S. and Neluwala, N.G.P.B., 2021. Dynamic Downscaling of Rainfall Data for Deduru Oya River Basin using WRF Weather Model. Engineer: Journal of the Institution of Engineers, Sri Lanka, 54(2), pp.69–75. DOI: http://doi.org/10.4038/engineer.v54i2.7443
• Athukorala, R., Thol, T., Neluwala, P., Petri, M., Sengxeu, S., Lattada, L., Keomanivong, S. and Sithivong, V., 2021. Evaluating the Performance of a WRF Physics Ensemble in Simulating Rainfall over Lao PDR during Wet and Dry Seasons. Advances in Meteorology, 2021. https://doi.org/10.1155/2021/6630302
• Toride, K., Neluwala, P., Kim, H. and Yoshimura, K. (2017) Feasibil-ity study of the reconstruction of historical weather with dataassimilation. Monthly Weather Review, 145, 3563-3580. https://doi.org/10.1175/MWR-D-16-0288.1
• N.G.P.B. Neluwala, K.T.S. Karunanayake, K.B.G.M. Sandaruwan and K.P.P. Pathirana Characteristics of Hydraulic Jumps over Rough Beds - An Experimental Study, Journal of the Institution of Engineers, Sri Lanka ('Engineer'), Vol. XXXXVI, No.03, pp.1-7, 2013.https://doi.org/10.4038/engineer.v46i3.6779

Conference Papers :

• W. H. M. Y. D. Bandara, K. H. S. Dinelka and N. G. P. B. Neluwala, 2020 Discharge Data Assimilation to Improve Flood Prediction Skills in Sri Lanka, , 11th International Conference on Sustainable Built Environment (ICSBE) 2020, Kandy.
• Peramuna, P.D.P.O., Neluwala, N.G.P.B., Wijesundara, K.K., Dissanayake, P.B.R., De Silva, S., Venkatesan, S., 2023. Development of a Digital Elevation Model Integrating Different Datasets for an Area of Mahaweli Basin, Sri Lanka. In: Dissanayake, R., Mendis, P., Weerasekera, K., De Silva, S., Fernando, S., Konthesingha, C. (eds)ICSBE 2022. Lecture Notes in Civil Engineering, vol 266. Springer, Singapore https://doi.org/10.1007/978-981-19-2886-4_30
• Abeyratne, W.M.L.K., Weerakoon, S.B., Neluwala, N.G.P.B., 2022. Clarification Efficiency of Plate Settlers Analyzed by CFD Modelling. In: Dissanayake, R., Mendis, P., Weerasekera, K., De Silva, S., Fernando, S. (eds) ICSBE 2020. Lecture Notes in Civil Engineering, vol 174. Springer, Singapore https://doi.org/10.1007/978-981-16-4412-2_42
• Niwunhella D.R.T., Kalpadeep D.N.S., Neluwala N.G.P.B. and Dammika A.J., 2023. Experimental Investigation on Porous Concrete for Sustainable Drainage Systems. 14th International Conference on Sustainable Built Environment -2023, Kandy, Sri Lanka. https://www.kandyconference.org/
• E.M.N.T. Edirisooriya, N.G.P.B. Neluwala, and S.B. Weerakoon, 2020 Flood Inundation Modelling in Greater Colombo Region Using HEC-RAS 2D, Proceedings of the WaSo Final Conference (www.WaSo2020.net) 15-16 December 2020. pp 514-519
• Athuraliya V.D., Neluwala N.G.P.B. and Pathirana K.P.P., 2023. Dynamic Behavior of Salinity Intrusion in Kelani River, Sri Lanka. 14th International Conference on Sustainable Built Environment -2023, Kandy, Sri Lanka. https://www.kandyconference.org/
• Perera P.L.L.N., Neluwala N.G.P.B. and Wijetunge J.J., 2023. Optimizing Physics Parameters for Heavy Rainfall Forecasting in the Kelani River Basin Using the WRF Model. 14th International Conference on Sustainable Built Environment -2023, Kandy, Sri Lanka. https://www.kandyconference.org/
• Kooiti Masuda, Panduka Neluwala, Kinya Toride, Kei Yoshimura, Hidenori Tanaka, Sho Miyazaki, Satoshi Nozawa, Mika Ichino, Yu Okubo, Junpei Hirano, Atmospheric data assimilation which accommodates weather descriptions as observations of solar radiation; Evaluation of performance with a modern one-year case, Japan Geoscience Union-American Geophysical Union (JpGU - AGU) Joint Meeting, 12-16 July, 2020,Online.
• Kei Yoshimura, Panduka Neluwala, Kinya Toride, Mika Ichino, Kooiti Masuda and Junpei Hirano, Atmospheric reanalysis before modern era using historical weather archives, AGU Fall Meeting 9-13 December 2019, San Francisco. USA.
• Panduka Neluwala, Kei Yoshimura, Atushi Okazaki, Kinya Toride, Junpei Hirano, Mika Ichino, Masuda Kooiti, Reconstruction of Historical Weather Using Personal Weather Diaries, International Atmospheric Circulation Reconstructions over the Earth Meeting, 11- 16 November 2018, Kyoto. Japan.
• Panduka Neluwala, K. Yoshimura, K. Toride, J. Hirano, M. Ichino, A. Okazaki, Reconstruction of Historical Weather by Assimilating Old Weather Diary Data, PP31A-1264, AGU Fall Meeting 11-15 December 2017, New Orleans
• Panduka Neluwala, Kinya Toride, and Kei Yoshimura, Assimilation Experiment of Weather Diary Data Using an LETKF System, the 3rd RIKEN International Symposium on Data Assimilation, 28th February- 3rd March 2017.
• Panduka Neluwala, Kei Yoshimura (2017) 1st Joint Workshop for Regional Climate Projection, Next Generation Land Surface Model Development, and Model Application and Implementation, 16- 17 January, 2017 Sapporo, Japan
• Panduka Neluwala, Kei Yoshimura (2016) Reconstruction of historical weather patterns by data assimilation of old diaries and general circulation model, World Archeological Conference -8 (WAC8), 28th August 02nd September 2016 Kyoto, Japan
• Panduka Neluwala, Kei Yoshimura (2016) Joint Hydro-Science Meeting Tsinghua University and The University of Tokyo, 8- March 2016, Tokyo, Japan
• Panduka Neluwala, and Kei Yoshimura and Suryun Ham (2014) Performance of High Resolution Ocean Atmosphere Coupled Model Downscaling over Sri Lanka 13th Regional Spectral Model RSM workshop 26-27 November 2014, Yokohama, Japan
• N.G.P.B. Neluwala, K.T.S. Karunanayake, K.B.G.M. Sandaruwan and K.P.P. Pathirana (2013) Effect of Bed Roughness on Characteristics of Hydraulic Jumps, Peradeniya University Research Sessions (PURSE), 4-July 2013, Peradeniya Sri Lanka.
• N.G.P.B. Neluwala, K.T.S. Karunanayake, K.B.G.M. Sandaruwan and K.P.P. Pathirana (2012) Performance of Hydraulics Jumps Over Rough Beds, International Conference on Sustainable Built Environment

Grants:
Multidisciplinary Research Grants, University of Peradeniya, Sri Lanka (2024 GN526) (Co- Investigators)
University Research Grants, University of Peradeniya, Sri Lanka (2021 URG/2021/18/E)
Japanese Government (Monbukagakusho: MEXT) Scholarship for PhD students (October 2015 to October 2018)
Japanese Government (Monbukagakusho: MEXT) Scholarship for MSc students (October 2013 to October 2015)

Talks/ Workshops conducted:
Keynote Speech, Technical Conference - Young Engineers’ Forum, Sri Lanka National Committee on Large Dams (YEF-SLNCOLD-2024)
Workshop on HEC-RAS model, Organised by Engineering Design Centre, Faculty of Engineering, University of Peradeniya (June 2023)
Workshop on Weather Research Forecasting (WRF) Model, Organised by Engineering Design Centre, Faculty of Engineering, University of Peradeniya (February 27/02/2020)
Workshop on HecRecSim Model, Organised by Engineering Design Centre, Faculty of Engineering, University of Peradeniya, (19/10/2023)
Trainings / Certificates:
Certificate on Basic WRF Tutorial Training – Summer 2024 Organised by National Center for Atmospheric Research, USA
Knowledge Co-Creation Program (Country Focus) in Short-term Program of Innovative Asia: Kyushu University, Japan (Historical Environment Design) (February 2020)
Post Doc training offered by the Water and Society (WaSo) Project under a grant from the government of Norway for the NORHED project (June-July 2019)
Third Workshop on Publicizing Research to the General Public-2018, International Affairs Office, University of Peradeniya (November 2018)
Workshop on Developing Research Supervision, NORADWaSo-Asia Project of University of Peradeniya, Sri Lanka (November 2018)
Riken International School of Data Assimilation, Kobe, Japan (January 2018)

Completed Research Supervisions: