成人头条

Hydrology and Water Resources

  • Floods and Droughts; Flood propagation modelling and drought analysis
  • Tank Cascade Systems; Rehabilitation potential of tank cascade systems for flood mitigation, resilience to droughts and climate change听
  • Rainfall trends; Increasing trends in the rainfall intensities and the impact in hydrological designs

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PUBLICATIONS

  • M. Kamran, W. Yousaf, R. L. H. L. Rajapakse, W. Kareem Awan, M. Riaz, N. M. Asif, M. Umar 听& U. T. Shah (2020). 鈥滻nnovative initiative for effective operation and monitoring using HEC鈥怰AS modelling of Hakra Branch Canal System, Pakistan.鈥 Irrig. and Drain., .
  • N. Ponnamperuma & R. L. H. L. Rajapakse (2020) "Holistic Behaviour of Urban Pond Systems for Flood Risk Mitigation- A Case Study in Metro Colombo Area,"听2020 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, pp. 48-53, doi: 10.1109/MERCon50084.2020.9185383.
  • K.T.N. Perera, T.M.N. Wijayaratna, H.M. Jayatillake, Tilak Priyadarshana & J.M.A. Manatunge(2020) 鈥漇pillway Modernization for Improving Robustness of Village Tank Cascades for Floods, Sri Lanka鈥, 2020 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka.
  • K.T.N. Perera, T.M.N. Wijayaratna, H.M. Jayatillake, Tilak Priyadarshana & J.M.A. Manatunge (2020) 鈥滻mplications of storage state behavior of village tanks in adaptation to climate change, Sri Lanka鈥, Journal of Water and Climate Change.
  • P. Rubyhanusha & R. L. H. 听L. Rajapakse (2020) "Estimation of Impact of Artificial Groundwater Recharge in Small Islands Using a Numerical Modeling Approach,"听2020 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, pp. 366-371, doi: 10.1109/MERCon50084.2020.9185243.
  • S. U. Hendawitharana, M. K. D. D. Priyasad & R. L. H. L. Rajapakse (2020) 鈥滳omparative Study of Spatial and Temporal Variation of Drought Using Remotely Sensed Data - A Case Study for Kirindi Oya Basin.鈥 In: Dissanayake R., Mendis P. (eds) ICSBE 2018. ICSBE 2018. Lecture Notes in Civil Engineering, vol 44. Springer, Singapore. DOI: https://doi.org/10.1007/978-981-13-9749-3_11, ISBN: 978-981-13-9749-3.
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2019) 鈥滵istributed Modelling of Water Resources and Pollute Transport in Malwathu Oya Basin, Sri Lanka鈥, Journal of the National Science Foundation of Sri Lanka (JNSF), 47(3): pp. 307-321. DOI: http://doi.org/10.4038/jnsfsr.v47i3.9281, (Registered E-ISSN: 2362-0161).
  • P. Rubuhanusha & R. L. H. L. Rajapakse (2019). 鈥漇ignificance of Spatial Variability in Preparation for Stream Flow Modeling in Maha Oya Basin鈥, Sri Lanka 5th International Multidisciplinary Engineering Research Conference - 2019 ERU, 成人头条, IEEE Catalog Number: CFP18B72-POD; ISBN: 978-1-5386-4418-8.
  • A. U. Kahaduwa & R. L. H. L. Rajapakse (2019) 鈥漅ainfall Variability and Effect of Different Spatial Interpolation Methods on Streamflow Modeling in Kalu Ganga Basin鈥, Sri Lanka 5th International Multidisciplinary Engineering Research Conference - 2019 ERU, 成人头条, IEEE Catalog Number: CFP18B72-POD; ISBN: 978-1-5386-4418-8.
  • H. M. A. D. S. S. Karunarathne & R. L. H. L. Rajapakse (2019) 鈥滶ffect of Different Methods for Spatial Interpolation of Rainfall Data for Hydrological Modeling in Dry Zone Mi Oya Basin鈥, Sri Lanka 5th International Multidisciplinary Engineering Research Conference - 2019 ERU, 成人头条, IEEE Catalog Number: CFP18B72-POD; ISBN: 978-1-5386-4418-8.
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2019) 鈥漌ater Quality Deterioration in the Malwathu Oya Basin, Sri Lanka and the Need for Physics-based Modelling鈥, 5th International Multidisciplinary Engineering Research Conference - 2019 ERU, 成人头条, IEEE Catalog Number: CFP18B72-POD; ISBN: 978-1-5386-4418-8.
  • K. D. C. R. Dissanayaka &听 R. L. H. L. Rajapakse (2019) 鈥滾ong鈥憈erm precipitation trends and climate extremes in the Kelani River basin, Sri Lanka, and their impact on streamflow variability under climate change鈥, Paddy and Water Environment, https://doi.org/10.1007/s10333-019-00721-6. Springer Publication ISSN: 1611-2490 (Print) 1611-2504 (Online) Impact Factor 1.379 (2003-2018), Volume 17, Issue 2, pp 281鈥289.
  • H. Heraji, P. Rubyhanusha & R. L. H. L. Rajapakse (2019) 鈥淕roundwater Hydrology and Management in Small Islands and their Applicability to Small Islands in Maldives and Sri Lanka鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • A. U. Kahaduwa & R. L. H. L. Rajapakse (2019) 鈥淩eview of Climate Change Impacts on Reservoir Hydrology and Long-term Basin-wide Water Resources Management鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • J. A. S. L. Thilakarathne, R. L. H. L. Rajapakse & T. M. N. Wijayaratna (2019) 鈥淓ffect of Climate Change on Monthly Pond Storage Variation - A Case Study in Jaffna, Sri Lanka鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • S. Rashid & R. L. H. L. Rajapakse (2019) 鈥淗ydraulic Modelling to Optimize the Available Channel Flows in an Arid Zone of Pakistan鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • B. Pandit & R. L. H. L. Rajapakse (2019) 鈥淎pplicability of ABCD Model for the Identification of Suitable Locations for Run-of-the-river Hydropower Generation in Upper Kelani River Basin in Sri Lanka鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • P. Choden & R. L. H. L. Rajapakse (2019) 鈥淎ssessment and Regionalization of Hydrological Model Parameters in Neighbouring Pho Chhu and Mo Chhu Basins in Bhutan - A Study based on ABCD Model鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • D. K. Yadav & R. L. H. L. Rajapakse (2019), 鈥淧recipitation Trends over the Three Climatic Zones of Mahaweli Basin and Evaluation of Climate Change Impacts on Streamflow Variability鈥, Proc. of the International Conference on Civil Engineering Applications 鈥 ICCEA 2019. 25th~26th July 2019, Department of Civil Engineering, 成人头条, Moratuwa 10400, Sri Lanka.
  • M. Kamran & R. L. H. L. Rajapakse (2018). 鈥滶ffect of Watershed Subdivision and Antecedent Moisture Condition on HEC-HMS Model Performance in the Maha Oya Basin, Sri Lanka鈥, International Journal of Engineering Technology and Sciences (IJETS) ISSN: 2289-697X (Print); ISSN: 2462-1269 (Online) Vol.5 (2), pp. 22-35. DOI: .
  • G. M. C. A. Perera & R. L. H. L. Rajapakse (2018). 鈥滵aily and Monthly Lumped Parameter Hydrologic Models for Analysis of Small Watersheds in Sri Lanka鈥, Proceedings of the 2019 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, IEEE Catalog Number: CFP18B72-POD; ISBN: 978-1-5386-4418-8, pp. 372-377.
  • J. A. S. L. Thilakarathne, T. M. N. Wijayaratna & R. L. H. L. Rajapakse (2018) 鈥淗olistic Behavior of Urban Pond Systems for Flood Risk Mitigation - A Case Study in Jaffna Municipal Council Area.鈥 In: Proceedings of the Ninth International Conference on Sustainable Built Environment 2018 (ICSBE 2018). Kandy, Sri Lanka, (ISBN 978-955-589-192-9).
  • S. U. Hendawitharana, M. K. D. D. Priyasad & R. L. H. L. Rajapakse (2018) 鈥淐omparative Study of Spatial and Temporal Variation of Drought using Remotely Sensed Data - A Case Study for Kirindi Oya Basin鈥, In: Proceedings of the Ninth International Conference on Sustainable Built Environment 2018 (ICSBE 2018). Kandy, Sri Lanka, (ISBN 978-955-589-192-9).
  • S. U. Hendawitharana, M. K. D. D. Priyasad & R. L. H. L. Rajapakse (2018) 鈥淪ub-basin scale Drought Forecasting with Standard Precipitation Index by using Remotely Sensed Precipitation and LSTM鈥, 18th International Conference on Advances of ICT for Emerging Regions 2018 (ICTer), Colombo.
  • K. D. C. R. Dissanayaka & R. L. H. L. Rajapakse (2018) 鈥淐limate Extremes and Precipitation Trends in Kelani River Basin, Sri Lanka and Impacts on Streamflow Variability under Climate Change鈥, 2nd International Conference on Climate Change 2018 (ICCC 2018), Colombo, Sri Lanka.
  • G. M. C. A. Perera & R. L. H. L. Rajapakse (2018) 鈥淎 study on use of daily and monthly lumped parameter hydrologic models for analysis of Maha Oya river basin鈥, In: University of Ruhuna-Department of Civil Engineering Annual Conference. Sixth International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS 2018). 15th March 2018, Galle, Sri Lanka.
  • P. W. H. Sasanka & R. L. H. L. Rajapakse (2018) 鈥淎 Study on Suitability of Four Parameter 鈥榓bcd鈥 Hydrologic Model to Simulate Rainfall Runoff in Selected Watersheds in Sri Lanka.鈥 In: University of Ruhuna-Department of Civil Engineering Annual Conference.听 Sixth International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS 2018), Galle, Sri Lanka.
  • L. N. Palihawadana & R. L. H. L. Rajapakse (2018) 鈥淎 Comparative Analysis of Model Performance of Two Lumped Parameter Hydrologic Models in Estimating Rainfall Runoff in Small Watersheds in Sri Lanka and their Applicability in Water Resource Management鈥, In: University of Ruhuna-Department of Civil Engineering Annual Conference. Sixth International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS 2018), Galle, Sri Lanka.
  • M. Kamran & R. L. H. L. Rajapakse (2017) 鈥淓ffect of watershed subdivision and antecedent moisture condition on HEC-HMS model performance in the Maha Oya Basin, Sri Lanka鈥, In: proceedings of the 5th International Young Researchers Workshop on River Basin Environment & Management, Universiti Malaysia Pahang, Kuantan, Malaysia.
  • G.L.E.P. Perera, G.C.R. Dayarathna, H.K.M. Perera, B.C.L. Athapattu, Kasun De Silva & G.A.A.U. Perera (2017) 鈥淓ngineered Wetland System for Enhancing Aquatic Environment of Urban Canals for Transportation: Case Study on Kirulapone Canal in Colombo, Sri Lanka鈥, 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development, Galle, Sri Lanka.
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2017) 鈥淪ustainable Solutions for the Drying Up of Groundwater Wells - A Case Study in a Selected Watershed in Dampe, Sri Lanka鈥, In: UMCSAWM Water Conference 2017, UNESCO Madanjeet Singh Centre for South Asia Water Management (UMCSAWM), 成人头条, Sri Lanka (ISBN: 978-955-9027-61-4).
  • D. M. S. S. Dissanayake & R. L. H. L. Rajapakse (2017) 鈥淪ustainable Solutions for the Drying-up of Groundwater Wells in a Selected Watershed in Dampe Village, Sri Lanka鈥, In: UMCSAWM Water Conference 2017, UNESCO Madanjeet Singh Centre for South Asia Water Management (UMCSAWM), 成人头条, Sri Lanka (ISBN: 978-955-9027-61-4).
  • S. N. Jayasinghe & R. L. H. L. Rajapakse (2017) 鈥淗ydrological Modelling Approach for Flood and Water Pollution Control in an Ungauged Catchment: Case Study- Erewwala Catchment in Bolgoda River Basin, Sri Lanka鈥, In: UMCSAWM Water Conference 2017, UNESCO Madanjeet Singh Centre for South Asia Water Management (UMCSAWM), 成人头条, Sri Lanka (ISBN: 978-955-9027-61-4).
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2016) 鈥淎pplication of a Process-based, Distributed, Hydrological and Material Transport Model to Assess Water Resources and Pollute Transport in Malwathu Oya Basin, Sri Lanka鈥, In: 成人头条, University of Peradeniya and University of Ruhuna, Sri Lanka, Seventh International Conference on Sustainable Built Environment 2016 (ICSBE 2016), Kandy, Sri Lanka.
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2016) 鈥淓ffects of Aquifer Parameters, Land Use Change and Recharge Characteristics on Groundwater Well Drying Up in Wet and Dry Zones in Sri Lanka鈥, In: American Society of Civil Engineers/Environmental and Water Resources Institute, Eighth International Perspective on Water Resources and the Environment (IPWE 2016). Colombo, Sri Lanka.
  • A. C. Dahanayake & R. L. H. L. Rajapakse (2016) 鈥淒rying Up of Groundwater Wells and Sustainable Development Options for Preservation of Groundwater in Sri Lanka鈥, In: Department of Civil and Environmental Engineering, University of Ruhuna, Sri Lanka and Department of Civil and Environmental Engineering, Saitama University, Japan, Fourth International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS 2016). Galle, Sri Lanka.
  • M. A. A. R. Dilhara and R. L. H. L. Rajapakse(2016) 鈥淎ssessment of Groundwater Resource Utilization in Wet and Dry Zone Aquifers in Sri Lanka and Quantifying Recharge Losses due to Urbanization and Land-use Change鈥, Proceedings of Civil Engineering Research Symposium 2016 (CERS 2016), Department of Civil Engineering, 成人头条, Sri Lanka.
  • B. C. L. Athapattu, G. L. E. P. Perera, H. K. M. Perera, G. C. R. Dayarathna, P. K. C. De Silva, M. Vithanage M. & G. A. A. U. Perera (2016) 鈥淓ngineered Solution to Improve Water Quality of Urban Water鈥, Proceedings of the 21st International Forestry and Environment Symposium, Kandalama, Sri Lanka.
  • Kasun De Silva & Norio Tanaka (2016) 鈥淓ffect of Transverse Slope on Sedimentation and Turbulent Flow Structure in Vegetated Floodplain of Compound Water Channels鈥,20th Congress of the Asia Pacific Division of the IAHR, Colombo, Sri Lanka.
  • Kasun De Silva, Norio Tanaka & Junji Yagisawa (2015) 鈥淩eturn period of flood disturbance that increases the diversity on gravel bars in middle stream of rivers鈥, Landscape & Ecological Engineering, 11(1). pp. 1-18.

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