Atmospheric Physics

Environmental Physics

Remote Sensing and GIS

Climate data analysis

Wavelet analysis

Solar cells

Climate data analysis 

Wavelet analysis

Journal papers

• Ruwangika, A., Perera, A., and Rathnayake, U., 2020. Comparison of Statistical, Graphical, and Wavelet Transform Analyses for Rainfall Trends and Patterns in Badulu Oya Catchment, Sri Lanka. Complexity, 2020, pp.1-13.
• Dharmathilaka, D., Medagangoda, I., De Silva, M., Aponsu, L., and Ruwangika, A., 2019. Outbursts Analysis Of Dwarf Novae Sub Types. [online] http://www.ijarset.com/. Available at:
• Hettiarachchi, C., Ruwangika, A., and Rathnayake, K., 2019. Multi-Agent-Based Intelligent Weather Forecasting System. [online] http://www.ijarset.com/. Available at: [Accessed 26 November 2020].
• Ruwangika, A., Hattiarachchi, c., and Aponsu, L., 2019. Analysis Of 20 Years Rainfall Data From 1999 To 2018 In Badulla District: A Case Study. [online] www.ijsred.com. Available at:

Conference papers

• N F Ajward, N., Ruwangika, N., G M L P Aponsu, G., Perera, V., Rajendra, J. and D L N Jayathilaka, D., 2016. Analysis of Composite Films Made of Tin (IV) Oxide and Silica using Electrochemical Techniques. Colombo, Sri Lanka: Institute of Physics – Sri Lanka, pp.9-15.

Conference abstracts

• Ruwangika, N., and Jayasingha, K., 2020. VARIATION OF ANNUAL AND SEASONAL RAINFALL PATTERNS IN RATHNAPURA DISTRICT OF SRI LANKA. In: Annual Research Session 2020. Belihul Oya: Sabaragamuwa University of Sri Lanka.

Presentations

• Ruwangika, N., and Aponsu, G., 2015. Dielectric Properties of composite tablets made from Tin (IV) Oxide and Silicon Dioxide. In: Research presentation session 2015. BelihulOya: Sabaragamuwa University of Sri Lanka.

Posters

• Ruwangika, N., Hettiarachchi, C. and Kumarage, M., 2019. Seasonal Variation In Rainfall Over Badulla District In Past 20 Years: A Case Study. In: International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL 2019). Belihuloya: Sabaragamuwa University of Sri Lanka.

Workshop on Hands-on training on Advanced Scientific Instruments for Material Characterization at Materials Technology Section, Industrial Technology Institute (ITI), Colombo 07, 201

• Team member of the organizing committee of the "iSciTech - 2016" international conference (April, 2016)
• Team member of the training booklet preparation committee of the Department of Physical Sciences & Technology (2017)
• one of the Secretary of the Task Force for Self Evaluation Report (SER) compilation for Program Review (PR) of the Faculty of Applied Sciences, 2020 (May 2019 to date)
• Department Coordinator, Business Linkage Cell (January 2020 to date)
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• Physics of Heat and Waves
• Environmental Physics
• Physics of Electromagnetic Radiation and Introduction to the Laser
• Interaction of Radiation with Matter
• Solid State Devices
• Atomic and Molecular Spectroscopy
• Atmospheric Physics
• Remote Sensing & GIS
• Data Acquisition and Signal Processing Methods