Postgraduate Research

Ongoing Research

UMCSAWM provides funding and supervision for research in the fields of Hydraulics, Water Resources Management, Irrigation, Ground Water studies, and Coastal and Port Engineering, addressing the challenges posed by water scarcity, water pollution, and climate change by following global and local policies on Climate Change and Sustainable Water Management.

“Applicability of remote sensing data for monitoring drought impact in Malwathu Oya river basin in Sri Lanka”

K.A.C. Jayaminda, Dr. H.G.L.N. Gunawardhana

“Potential shifting of climate zones and associated hydrological impacts under changing climate conditions in Sri Lanka”

R.P.A.U. Ranasinghe, Dr. H.G.L.N. Gunawardhana

“Effect of climate change on the distribution of droughts in selected dry zone basins”

T.Y. Wijekoon, Prof. R.L.H.L. Rajapakse

“Assessing the Water-Use Efficiency in Malwathu Oya Basin Sri Lanka Under Changing Climate Scenarios”

S.B.Prasad, Dr. P.K.C. De Silva, Dr. H.G.L.N. Gunawardhana, Dr. L. Muthuwatta

Research Publications

2022

“Drought Assessment of Kirindi Oya and Kelani River Basins in Sri Lanka under Climate Change Impacts”

F. Azmi, R.M.J. Bamunawala, T. M. N. Wijayaratna

“Evaluation of Gridded Precipitation Products for Streamflow Modelling in Gin Watershed, Sri Lanka”

P.D. Doya, P. K. C. De Silva

“Streamflow Variability under Climate Change Scenarios in Kelani River Basin, Sri Lanka”

F.Farhat, R. M. J. Bamunawala, T. M. N. Wijayaratna

“Forecasting Dry Weather Flow to Assess Future Water Extraction Capacities at Koleimodara Intake in Kuda Ganga, Kalu Ganga”

W.R.S.Fenando, A H. R. Rathnasooriya

“Flood Risk Assessment in Kalu River Basin in Sri Lanka using Geospatial Techniques and Hydrological Modelling”

R.Gurung, T. M. N. Wijayarathna

“Impact of Climate Change on Droughts in Maduru Oya River Basin in Sri Lanka over the 21st Century”

G. Kour, R. M. J. Bamunawala, T. M. N. Wijayaratna

“Flood Hazard and Vulnerability Assessment in Upper Gin River Basin in Sri Lanka under Climate Change”

V. Kumar, T. M. N. Wijayarathna

“Assessment of Climate Change Impact on Water Availability in Upper Mahaweli River Basin, Sri Lanka”

F. Musadiq, P. K. C. De Silva

“Assessment of Deforestation and Land Cover Change Impacts on Flood Peak Discharge in Maduru Oya Basin, Sri Lanka”

A.W. Nab, A H. R. Rathnasooriya

“Modeling Streamflow Variability in Dry and Wet Zone River Basins in Sri Lanka using Satellite Soil Moisture Data”

U. Phuyal, R. L. H. L. Rajapakse

“Development of a Rainfall-Runoff-Inundation Model and Flood Monitoring System based on Satellite Imagery for Kalu Ganga Basin, Sri Lanka”

T. Sultana, R. L. H. L. Rajapakse

2021

“Analysis of Rainfall Trend and Its Impact on Future Hydropower Generation – Case Study on Victoria Reservoir”

J.W.R. Lakmali, R.L.H.L. Rajapakse

http://dl.lib.uom.lk/handle/123/20696

“Evaluation of the Changes in the Climatic Parameters Affecting Water Resources in the Kelani River Basin, Sri Lanka”

K. Wangmo, R.L.H.L. Rajapakse

http://dl.lib.uom.lk/handle/123/20703

“Applicability of Model Parameter Transferability of Tank Model in Streamflow Simulation in Gin River Basin”

C. Zam, N.T.S. Wijesekera

http://dl.lib.uom.lk/handle/123/16518

2020

“Transferability of Model Parameters for Monthly Streamflow Estimation in Ungauged Watersheds in Kalu River Basin”

N.L. Engiliyage, N.T.S. Wijesekara

http://dl.lib.uom.lk/handle/123/16453

“Modelling of Irrigation Reservoir Operation for Efficient Water Management with a Focus on Water and Food Security”

M.S. Hossen, N.T.S. Wijesekara

http://dl.lib.uom.lk/handle/123/16381

“Evaluation of the Effectiveness of Organizational Objectives and Implementation for Sustainable Drinking Water Supply Systems Using a Multi Criteria Decision Model”

T.A.A.I. Jayaranga, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16438

“Optimization of Rainfall Spatial Variability for Daily Streamflow Estimation with a Monthly Water Balance Model”

N. Maharoof, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16385

“Flood Forecasting Model Using HEC-HMS for Nagalagam Street Hydrometric Station with Relative Impacts of Antecedent Rain Fall in Kelani River Basin”

N.M.A. Senadhinatha, R.L.H.L. Rajapakse

http://dl.lib.uom.lk/handle/123/16429

“Analysis of Precipitation Trend and Streamflow Sensitivity to Precipitation in Maduru Oya River Basin with HEC-HMS Model Simulations”

S.Kirupacaran, R.L.H.L. Rajapakse

http://dl.lib.uom.lk/handle/123/16430

“Incorporation of the Optimum Rainfall Spatial Variability in a Monthly Rainfall Runoff Model”

A.Bhatt, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16427

“Assessment and Regionalization of Hydrological Model Parameters in Neighboring Pho Chhu and Mo Chhu Basins in Bhutan- A study on ABCD Model”

P. Choden, R. L. H. L. Rajapakse

http://dl.lib.uom.lk/handle/123/16463

“Evaluation of Tank Model Parameters for Spatial Transferability Within Kalu River Basin of Sri Lanka”

S.M. Hedait, N.T.S. Wijesekara

http://dl.lib.uom.lk/handle/123/16464

“Investigation of HEC-HMS Model Parameter Transferability for Daily Rainfall Runoff Simulation in Maha Oya Basin”

A. Bhatt, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16436

“HEC-HMS Model Parameter Transferability for Daily Streamflow Estimation in Gin Ganga Basin”

M.H.B.C.W. Herath, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16380

“Evaluation of A Monthly Water Balance Model Considering Rainfall Station Weights and Physical Parameters in Nilwala Basin Sri Lanka”

M.A. Masoud, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16379

“Identification of Suitable Locations for River Hydropower Generation Using GIS and ABCD Model in Upper Kelani River Basin in Sri Lanka”

B. Pandit, R.L.H.L. Rajapakse

http://dl.lib.uom.lk/handle/123/16378

“Analysis of Hydroclimatic Variability and Adequacy of Channel Flows in An Arid Zone in Pakistan”

S. Rashid, R. L. H. L. Rajapakse

http://dl.lib.uom.lk/handle/123/16376

“Potential of Parameter Transferability within a River Basin to Predict Daily Streamflow in Ungauged Catchments; Case Study for Upper Nilwala River Basin”

A.K.U.B. Rathnayaka, N. T. S. Wijesekera

http://dl.lib.uom.lk/handle/123/16428

“Evaluation of Climate Elasticity of Runoff based on Observed Rainfall / Streamflow Data and Simulated Future Streamflow Using SWAT Model in Kalani Ganga Basin”

K.K.G.I.L. Siriwardena, R. L. H. L. Rajapakse

http://dl.lib.uom.lk/handle/123/16431

“Evaluation of Transferability of Tank Model Parameters for Ungauged Catchments in Nilwala River Basin”

M. Wickramaarachchi, N.T.S. Wijesekara

http://dl.lib.uom.lk/handle/123/16465

“Precipitation Trends Over the Three Climatic Zones of Mahaweli Basin and Evaluation of Climate Change Impacts on Streamflow Variability”

D.K.Yadav, R. L. H. L. Rajapakse

http://dl.lib.uom.lk/handle/123/16267

2019

“Influence of Station Density and Interpolation Methods on Spatial Averaging of Rainfall for Water Resources Management”

P.K.M. Dissanayake, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/15765

“Continuous Hydrological Modelling Using Soil Moisture Accounting for Water Resources Assessment in Kelani River Basin, Sri Lanka”

T.K.A. Kodippili, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/15766

“The Effect of Antecedent Moisture Condition on HEC-HMS Model Performance: A Case Study in Kelani River Basin, Sri Lanka”

K.Y. Dorji, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/15764

“Evaluation of Models for Yield Computation in Ungauged Watersheds for Irrigation Infrastructure Design”

S.T. Siriwardana, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/15767

“Suitability of a Selected Hydrological Model and Objective Function for Rural Watershed Management in Sri Lanka”

P.S. Thakuri, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/15768

“Analysis of the Effect of Loss and Baseflow Methods and Catchment Scale on Performance of HEC-HMS Model for Kelani River Basin, Sri Lanka”

A.M.U. Din, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/15727

“Estimation of SCS Curve Number for Streamflow Modelling – A Case Study of Badalgama Watershed in Maha Oya Basin, Sri Lanka”

R. Adhikari, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/15763

“Identification of Minimum Data Duration for Monthly Water Balance Model Calibration”

M.A.D.N. Ariyasena, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/15749

2018

“Effect of Watershed Subdivision and Antecedent Moisture Condition on HEC-HMS Model Performance in the Maha Oya Basin, Sri Lanka”

M. Kamran, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/14573

“Climate Extremes and Precipitation Trends in Kelani River Basin, Sri Lanka and Impact on Streamflow Variability Under Climate Change”

K.D.C.R. Dissanayaka, R. L. H. L. Rajapakse

http://dl.lib.uom.lk/handle/123/14594

2017

“Study of Urban Water Demand and Distribution System Reliability – A Case Study of Maharagama Water Supply Scheme, Sri Lanka”

D.M.S.S. Dissanyake, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/13493

“Calibration and Verification of a Two-Parameter Monthly Water Balance Model and its Application Potential for Evaluation of Water Resources – A Case Study of Kalu and Mahaweli Rivers of Sri Lanka”

M.B. Sharifi, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/12954

“Rainfall-runoff simulation model based on water balance concept for basinwide water resource assessment – A Case Study in Upper and Lower Catchments of Deduru Oya Basin, Sri Lanka”

J. Tshewang, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/12895

“A Monthly Water Balance Model for Evaluation of Climate Change Impacts on the Streamflow of Ginganga and Kelani Ganga Basins, Sri Lanka”

D. Khandu, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/12893

“Applicability of a Two-Parameter Water Balance Model to Simulate Daily Rainfall Runoff – Case Study of Kalu and Gin River Basins in Sri Lanka”

P.K.M. Dissanayake, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/12889

2016

“Development of a Rainfall Runoff Model for Kalu Ganga Basin of Sri Lanka using HEC-HMS model”
P.M.Jayadeera, R. L. H. L. Rajapakse
http://dl.lib.mrt.ac.lk/handle/123/12800

2015

“Multicriteria Decision Modelling for Management of Water Supply System in the Piliyandala – Kesbewa Water Supply System, Colombo District, Sri Lanka” T.K.N.K. Kumari, N. T. S. Wijesekera http://dl.lib.mrt.ac.lk/handle/123/13147

2014

“Event-Based Modelling of Streamflow for Reliable Flood Mitigation and Drainage Infrastructure Designs Using Snyder’s Synthetic Unit Hydrograph Method – A Case Study of Karasnagala Watershed in The Attanagalu Oya Of Sri Lanka”

G. Thapa, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/11476

“Identification of Water Management Concerns in Irrigation – Study of Water Issue Practice at Rajangana Reservoir, Sri Lanka”

H. Chemjong, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/13401

“Rainwater Harvesting Practices in Sri Lanka and an Investigation on Cost Effective Design Considerations for Wet and Dry Zones”

M. Jaman, R. L. H. L. Rajapakse

http://dl.lib.mrt.ac.lk/handle/123/11477

“Evaluation of Runoff Estimation Using SCS Method for Infrastructure Design – A Case Study of Attanagalu Oya Basin – Karasnagala, Sri Lanka”

S. Tobgay, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/11474

“Rainfall Event Analysis for Drainage Infrastructure Design in Greater Colombo Watershed”

W. Keerthirathne, N. T. S. Wijesekera

http://dl.lib.mrt.ac.lk/handle/123/11475