MSc. (IWRM)

Post Graduate Institute of Agriculture, University of Peradeniya, Sri Lanka.

BSc (Agriculture)

Rajarata University of Sri Lanka.

Lecturer (Probationary), Department of Agricultural Engineering and Soil Science,

Faculty of Agriculture, Rajarata University of Sri Lanka.                                                   

2017 June onwards

Temporary Lecturer, Department of Agricultural Engineering and Soil Science,

Faculty of Agriculture, Rajarata University of Sri Lanka.                                                   

2014 September - 2017 May

Awarded certificate for best paper of the International Journal of Applied and Natural Sciences (IJANS) Vol.5, Issue 4 - 2016

Awarded certificate for the most outstanding presentation in the module of Agricultural Engineering.

(Undergraduate research symposium 2013, Faculty of Agriculture, Rajarata University of Sri Lanka)

De Silva, S. S., Abeysingha, N.S., Nirmanee, K. G. S.,  Sandamali Pathirage, P. D. S., Mallawatantri, A.  (2022). Effect of land use–land cover and projected rainfall on soil erosion intensities of a tropical catchment in Sri Lanka. International Journal of Environmental Science and Technology.

Ranasinghe, R.P.L.N., Dissanayaka, D.M.S.H., Rathnayaka, R.A.A.S., Nirmanee, K.G.S. and Jayaneththi, J.P.H.U. (2021). Water Quality in Different Inlet and Outlet Canals Connected to Nuwarawewa, Anuradhapura, Sri Lanka. International Journal of Latest Technology in Engineering, Management & Applied Science. 10(02). ISSN 2278-2540.

Amarasekara, M.G.T.S., Bandara, W.S., Nirmanee, K.G.S. (2020). Effect of Direct Disposal of Reverse Osmosis Concentrate on Soil Chemical Characteristics in Disposal Sites. International Journal of Research and Innovations in Earth Science. 7(2), 20-30.

Panditharathne, D.L.D., Abeysingha, N.S., Nirmanee, K.G.S. and Mallawatantri, A. (2019). Application of Revised Universal Soil Loss Equation (Rusle) Model to Assess Soil Erosion in “Kalu Ganga” River Basin in Sri Lanka. Applied and Environmental Soil Science 2019(1), 1-15. DOI: 10.1155/2019/4037379

Kumudumali, M.M.L.U., Nirmanee, K.G.S. (2019). Assessment of surface water quality for irrigation in Ulagalla Cascade, Sri Lanka. International Journal of Latest Technology in Engineering, Management and Applied Science, 6(10), ISSN 2278-2540.

Fayas, C.M., Abeysinghe, N.S., Nirmanee, K.G.S., Samarathunga, D. and Mallawathanthri, A. (2019). Soil loss estimation using RUSLE model to prioritize erosion control in Kelani river basin in Sri Lanka. International Soil and Water conservation research (in progress, online access: https://doi.org/10.1016/j.iswcr.2019.01.003)

Gunarathna, M.H.J.P., Nirmanee, K.G.S. and Kumari, M.K.N. (2016). Geostatistical analysis of spatial and seasonal variation of groundwater level: A comprehensive study in Malwathu Oya cascade-I, Anuradhapura, Sri Lanka. International Research Journal of Environmental Sciences. 5(8), 29-36. 

Gunarathna, M.H.J.P, Kumari, M.K.N., Nirmanee, K.G.S. and Jayasinghe, G.Y. (2016). Spatial and seasonal water quality variation of Yan Oya in tropical Sri Lanka. International Journal of Applied and Natural Sciences, 5(4), 45-56.

Gunarathna, M.H.J.P., Nirmanee, K.G.S. and Kumari, M.K.N. (2016). Are Geostatistical Interpolation Methods Better than Deterministic Interpolation Methods in Mapping Salinity of Groundwater? International Journal of Research and Innovations in Earth Science, 3(3), 59-64.

Gunarathna, M.H.J.P., Kumari, M.K.N. and Nirmanee, K.G.S. (2016). Evaluation of Interpolation Methods for Mapping pH of Groundwater. International Journal of Latest Technology in Engineering, Management & Applied Science, 5(3), 1-5.

Kumari, M.K.N., Pathmarajah, S., Dayawansa, N.D.K. and Nirmanee, K.G.S. (2015). Evaluation of groundwater quality for irrigation in Malwathu Oya cascade-I in Anuradhapura district of Sri Lanka. Journal of Tropical Agricultural Research 27(4), 310-324.

Kumari, M.K.N., Rathnayake, R.M.C.P., Kendaragama, K.M.A., Gunarathna, M.H.J.P and Nirmanee, K.G.S. (2015). Drinking Water Quality in Chronic Kidney Disease of Unknown Aetiology (CKDu) Prevalent and Non-prevalent Areas in Giradurukotte, Sri Lanka. International Journal of Advances in Agricultural and Environmental Engineering, 3(1), 57-60.

Hettiarachchi, D.S.N., Nirmanee, K.G.S. and Gunarathna, M.H.J.P. (2021). Identification of groundwater potential zones by remote sensing and GIS techniques: a study in North Central province, Sri Lanka.  13th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 42.

Rathnayaka, R.M.P.S., Kumari, M.K.N., Nirmanee, K.G.S. and Gunarathna, M.H.J.P. (2021). Missing rainfall data estimation using machine learning approaches: a study in Sri Lanka. 13th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 44.

Hemapala. T.L.A.P., Abeysingha, N.S. and Nirmanee, K.G.S. (2021). Assessing agricultural vulnerability to drought in dry zone of Sri Lanka- a Remote Sensing based approach. 13th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 46.

Subasinghe, W.I.S.C., Nirmanee, K.G.S. and Kumari, M.K.N. (2021). Land use/ land cover dynamics using geospatial techniques: a study in Malwathu Oya river basin. 13th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 47.

Jayasundara, J.M.N.D., Nirmanee, K.G.S., Kumari, M.K.N. and Gunarathna, M.H.J.P. (2020). Assessment of forest cover change in Wilpatthu forest complex using remote sensing and GIS techniques. 12th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 23.

Chathurika, R.G.T., Dissanayaka, D.M.S.H. and Nirmanee, K.G.S. (2020). Impact of urbanization on surface water quality: a review. 12th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 25.

Jayalath, J.P.S.L., Nirmanee, K.G.S., Kumari, M.K.N. and Gunarathna, M.H.J.P. (2020). Spatial analysis of Dengue risk in Kandy district using Remote Sensing and GIS. 12th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 27.

Silva, S.S., Abeysingha, N.S. and Nirmanee, K.G.S. (2020). Effect of land use /land cover and projected rainfall on soil erosion intensity of Nalanda Oya catchment. 12th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 3.

Panditharathne, D.L.D., Abeysingha, N.S. and Nirmanee, K.G.S. (2019). Application of revised universal soil loss equation (RUSLE) model to assess soil erosion in Kalu ganga river basin. 11th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 10.

Perera, S.S.H., Dissanayaka, D.M.S.H. and Nirmanee, K.G.S. (2019). Treatment of reverse osmosis concentrate and kitchen wastewater by phytoremediation techniques. 11th Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka, p 11.

Yapa, Y.M.N.C., Dissanayaka, D.M.S.H. and Nirmanee, K.G.S. (2018). Potential of Phytoremediation techniques to improve the quality of Reverse Osmosis concentrate. Proceeding of 23rd International Forestry and Envioronment Symposium, p 77.

Ranasinghe, R.P.L.N., Dissanayaka, D.M.S.H., Rathnayaka, R.A.A.S., Nirmanee, K.G.S. and Jayaneththi, J.P.H.U. (2018). An assessment of lan use on water quality in different inlet and outlet canals connected to Nuwara wewa in Anuradhapura. Proceeding of 23rd International Forestry and Envioronment Symposium, p 78.

Yapa, Y.M.N.C., Dissanayaka, D.M.S.H. and Nirmanee, K.G.S. (2018). Comparative study to improve the quality of Reverse Osmosis concentrate using phytoremediations techniques. 10th annual research symposium 2018, Faculty of Agriculture, Rajarata University of Sri Lanka, p 01.

Fayas, C.M., Abeysingha, N.S. and Nirmanee, K.G.S. (2018). An application of RUSLE model to prioritize erosion control in Kelani river basin in Sri Lanka. 10th annual research symposium 2018, Faculty of Agriculture, Rajarata University of Sri Lanka, p 06.

Ranasinghe, R.P.L.N., Dissanayaka, D.M.S.H., Rathnayaka, R.A.A.S. and Nirmanee, K.G.S. (2018). Assessment of water quality in different inlet and outlet cannals of Nuwarawewa tank in Anuradhapura, Sri Lanka. 10th annual research symposium 2018, Faculty of Agriculture, Rajarata University of Sri Lanka, p 07.

Wijesundara, N.C., Abeysingha, N.S. and Nirmanee, K.G.S. (2017). Soil erosion assessment in Kirindi Oya river basin using RUSLE model. 09th annual research symposium 2017, Faculty of Agriculture, Rajarata University of Sri Lanka, p 36.

Kumudumali, M.M.L.U., Kumari, M.K.N., Gunarathna, M.H.J.P. and Nirmanee, K.G.S. (2016). Surface water quality in Ulagalla cascade- Anuradhapura district. 08th annual research symposium 2016, Faculty of Agriculture, Rajarata University of Sri Lanka, p 18.

Nirmanee, K.G.S. and Dayawansa, N.D.K. (2015). Evaluation of surface interpolation methods for mapping spatial variation of shallow groundwater quality in Malwathu Oya cascade-I. Symposium proceedings, Fourth international symposium on water quality and human health: challenges ahead, 01 & 02 August, PGIS, Peradeniya, Sri Lanka, p 15.

Shanthapriya, K.D.P.A., Gunarathna, M.H.J.P. and Nirmanee, K.G.S. (2015). Effect of drought incidences on paddy production in Sri Lanka. Undergraduate research symposium 2015, Faculty of Agriculture, Rajarata University of Sri Lanka, p17.

Rathnayake, R.M.C.P., Kumari, M.K.N., Kendharagama, K.M.A. and Nirmanee, K.G.S. (2015). Ionicity of drinking water and chronic kidney disease of unknown etiology in Giradurukotte area. Undergraduate research symposium 2015, Faculty of Agriculture, Rajarata University of Sri Lanka, p 23.

Senevirathne, D.G.P.G.C., Abeysingha, N.S., Amarasekara, M.G.T.S., Nirmanee, K.G.S. and Bandara, H.M.G.N.S.C. (2015). Assessment of soil related problems in low yielding areas of Gal Oya sugarcane plantation. Undergraduate research symposium 2015, Faculty of Agriculture, Rajarata University of Sri Lanka, p 76.

Nirmanee, K.G.S., Kumari, M.K.N. and Gunarathna, M.H.J.P. (2013). Availability and quality of groundwater in Malwathu Oya cascade-I, Anuradhapura district. Undergraduate research symposium 2013, Faculty of Agriculture, Rajarata University of Sri Lanka.

Short course on “GIS and applications” - PGIS, University of Peradeniya Sri Lanka.

Advanced short course on “GIS and applications” - PGIS, University of Peradeniya Sri Lanka.

Short training course on application of remote sensing and GIS in Agricultural research - Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka.