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Citizenship New Zealand
PERSONAL PROFILE
Qualified and experienced professional in hydrology system modelling and simulation, and engineering project management. Seeking to attain a challenging position that provides responsibility and management in a research or engineering environment where I can be actively involved in solving environmental issues.
STRENGTHS
* Experienced mathematical and computer modeller in analytical and numerical techniques
* Excellent knowledge of hydrological processes in porous media
* Specialised in inverse modelling approaches
* Thorough knowledge in GIS, stochastic calculus, and artificial neural networks
* Vast knowledge in uncertain system behaviour in environmental problems
* Proficient programmer in Mathematica, C++, Simscript and ability to use a large number of software packages for modelling and visualisation
* Fully able to learn a new program and technology independently
* Good communicator and excellent record in scientific publications
* More than 8 years experience in large scale project management
EDUCATION
Ph.D. Candidate, System Modelling and Simulation July 2000 - Present
Applied Computing, Mathematics & Statistics Group, Lincoln University, New Zealand
* Thesis topic: Stochastic Transport Modelling and Inverse Methods in Geohydrology
* Expected completion: June 2003
Master of Applied Science, Modelling and Simulation of Natural Systems 1998 - 2000
Applied Computing, Mathematics & Statistics Group, Lincoln University, New Zealand
P.G. Dip, Construction Management 1993-1994
Department of Civil Engineering, Open University, Sri Lanka
BSc(Eng), Civil Engineering 1985-1990
Faculty of Engineering, University of Peradeniya, Sri Lanka
PROFESSIONAL EXPERIENCE
Construction Manager 1991 - 1996
Pinto Construction, Sri Lanka
Design Structural Engineer (secondment) 1995 - 1996
Stem Consultants, Sri Lanka
Time and Work Study Officer 1989 - 1990
InterFashion (German) Ltd, Sri Lanka
Assistant Engineer 1988 - 1999
Salzgitter-Agrar- Electrowatt Joint Venture, Rantambe, Sri Lanka [Salzgitter Consult GMBH, Agrar-Und Hydrotechnik GMBH, Essen Electrowatt Engineering Services Ltd., Zurich]
TEACHING EXPERIENCE
Tutor, Computing and Mathematics papers 2000 – Present
Applied Management & Computing Division, Lincoln University, New Zealand
Visiting Lecturer, Day School 1991 - 1992
Faculty of Engineering Technology, Open University, Sri Lanka
Instructor 1990 - 1991
Faculty of Engineering, University of Peradeniya, Sri Lanka
PROFESSIONAL MEMBERSHIPS
Member, National Ground Water Association (NGWA), USA
Member, American Water Resources Association (AWRA)
Member, Society for Industrial and Applied Mathematics (SIAM)
SCHOLARSHIPS, PRIZES AND AWARDS
Bright Future – Top Achiever Doctoral Scholarship, Foundation for Research, Science & Technology, New Zealand, 2000-03
Kippenberger Memorial Fellowship, Royal New Zealand Returned Services' Asso., 2000-01
Syd Bodmin Scholarship, Lincoln University, New Zealand, 2000
Saritha Catherine McClure Scholarship, Lincoln University, New Zealand, 2000
Summer scholarship, Lincoln University, New Zealand, 1999
REFEREES
Available on request
PUBLICATIONS
REFEREED JOURNAL PAPERS
Rajanayaka, C. and D. Kulasiri, Investigation of a parameter estimation method for contaminant transport in aquifers. Journal of Hydroinformatics, 3(4): 203-213, 2001.
REFEREED CONFERENCE PROCEEDINGS
Rajanayaka, C., D. Kulasiri, and S. Samarasinghe, A comparative study of parameter estimation in hydrology modelling: Artificial neural networks and curve fitting approaches. Accepted for the Proceeding of International conference on Modelling and Simulation, MODSIM 2003 Congress, 14-17 July 2003. Townsville, Australia, 2003.
Rajanayaka, C. and D. Kulasiri, Scale dependent solute dispersion in porous media. Proceeding of VIth International Conference on Computer Simulation and Industry Applications, 20-21 February. Tijuana, B.C.: Mexico, 2003.
Rajanayaka, C. and D. Kulasiri. Exploration of the Behaviour of a Stochastic Transport Model Using Computational Experiments. Proceeding of Biennial Congress of the International Environmental Modelling and Software Society (IEMSS) 2002, Lugano, Switzerland: vol 2. 301- 306, 2002.
Rajanayaka, C., S. Samarasinghe and D. Kulasiri. Solving the Inverse Problem in Stochastic Groundwater Modelling with Artificial Neural Networks. Proceeding of Biennial Congress of the International Environmental Modelling and Software Society (IEMSS) 2002, Lugano, Switzerland: vol 2. 154-159, 2002.
Rajanayaka, C. and D. Kulasiri. Investigation of a stochastic inverse method to estimate parameters in groundwater models. Proceeding of MODSIM 2001 International congress on modelling and simulation, Canberra, Australia: 1985 – 1990, 2001.
Samarasinghe, S., D. Kulasiri, C. Rajanayake and M. Chandraratne. Three neural network application case studies in biology and natural resources. Proceeding of 9th International Conference on Neural Information Processing (ICONIP'02), Singapore, November 18 - 22, 2002.
MANUSCRIPTS IN PREPARATION
Rajanayaka, C. and D. Kulasiri, Two-dimensional stochastic model for solute transport in porous media: mathematical basis and computational solution.
Target journal: Environmental Science and Technology
Rajanayaka, C., D. Kulasiri and Sandhya Samarasinghe, Estimating parameters of a stochastic solute transport model using natural computing techniques.
Target journal: Water Resources Research
INTERNATIONAL CONFERENCES PRESENTATIONS
Rajanayaka, C., D. Kulasiri, and S. Samarasinghe, A comparative study of parameter estimation in hydrology modelling: Artificial neural networks and curve fitting approaches. To be presented at the International conference on Modelling and Simulation, MODSIM 2003 Congress, 14-17 July 2003. Townsville, Australia, 2003.
Rajanayaka, C. and D. Kulasiri, Scale dependent solute dispersion in porous media. Presented at the VIth International Conference on Computer Simulation and Industry Applications, 20-21 February. Tijuana, B.C.: Mexico, 2003.
Rajanayaka, C. and D. Kulasiri, Exploration of the behaviour of a stochastic transport model using computational experiments. Presented at the International Environmental Modelling and Software Society, University of Lugano. Switzerland, June, 2002.
Rajanayaka, C., S. Samarasinghe and D. Kulasiri, Solving the inverse problem in stochastic groundwater modelling with artificial neural networks. Presented at the International Environmental Modelling and Software Society, University of Lugano. Switzerland, June, 2002.
Rajanayaka, C. and D. Kulasiri, Investigation of a stochastic inverse method to estimate parameters in groundwater models. Presented at International congress on modelling and simulation, MODSIM 2001, Canberra, Australia, December 2001.
SEMINAR AND POSTER PRESENTATIONS
Rajanayaka, C. Stochastic Solute Transport Modeling and Inverse Method in Hydrology. Presented of a seminar at the Department of Civil Engineering, University of Toronto, Canada during a month visit to the University of Toronto, February-March 2003.
Rajanayaka, C and D. Kulasiri, Can we find the mysteries of groundwater contamination? Poster presented at the Annual Workshop at The Foundation for Research, Science and Technology, Christchurch, New Zealand, July 2002.
Raymond, E., A. McKinnon and C. Rajanayaka, Visualising uncertain data. Poster presented at Science 2002, workshop at Lincoln University, New Zealand, February 2002.
Rajanayaka, C and D. Kulasiri, Inverse methods in groundwater modelling, Poster presented at the Annual Workshop at The Foundation for Research, Science and Technology, Christchurch, New Zealand, June 2001.
Rajanayaka, C. Estimation of hydraulic parameters of a stochastic advection – dispersion model and implementation of the model in a GIS framework. Seminar presented at Lincoln University, New Zealand, February 2001.
Rajanayaka, C., C.K. Lin and D. Kulasiri. Development of a computational model for solute transport in heterogeneous aquifers. Poster and seminar presented at New Zealand Computer Post Graduate students' conference, Waikato University, New Zealand, 1999.
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