Dr.T.S.G Peries

B Sc; M Sc; Ph D.
Senior Lecturer Grade I
Department of Mathematics, Faculty of Engineering
University of Moratuwa
 
 
 
Contact Information
 
 Office:  Department of Mathematics
 Faculty of Engineering
 University of Moratuwa
 Katubedha, Moratuwa
 Email:     sarathp@uom.lk
 Tel (O): (011) 2650301 Ext 6201; Direct: (011) 2651123
 
 Home:    1/8 A, Railway Station Road,
 Egodauyana, Moratuwa  

          
                                                    
Tel (R): (011) 2658941               Mobile:      0779 895 342
 
.

 


1.    Research Interests

  • Forecasting Techiques
  • Regression Analysis
  • Statistical Data Analysis     
  • Climate Change Analysis and Assessment
  • Applications of Multivaraite Statistics
  • Social Statistics

 



2.    Career Development

     Period
                            Position
Place
Oct 1979 - Sep 1980
Temporary Instructor
Department of Mathematics, Faculty of Engineering, University of Peradeniya
 Oct 1980 - April 1986
Statistician 
Coconut Research Institute (CRI),
Lunuwila
 May 1986 -   Dec 1991
Senior Statistician
CRI, Lunuwila
 Jan 1992 – Jun 2004
Principal Statistician
CRI, Lunuwila
 Jun 2004 to Aug 2007
Principal Statistician; 
Head, Statistics  Division
CRI, Lunuwila
Aug 2007 – to date
Senior Lecturer Grade I
Department of Mathematics
Faculty of Engineering,
University of Moratuwa
 

3. Educational & Professional Qualification

 
Educational
·   B Sc (First Class Honours) , University of Colombo, Sri Lanka - 1979
·   M Sc (Statistics), University of Canterbury, New Zealand - 1985
·   Ph D (Applied Statistics), University of Colombo, Sri Lanka, 1995
Professional
§Fellow of Royal Statistics Society,  UK

 


 
 
Reports for dissemination of knowledge and contributions to the national development
1)             Somasiri, L. L. W., Peiris, T. S. G., Gunathilake, H. A. J., Fernando, M. T. N. and Pinto, J. L. J. G. (1993). An Appraisal of Coconut Growers' Reactions and observations on CRI Recommended Cultural Practices and Other Related Issues. 1-123pp.
 
2)            Peiris, T. S. G. and Samarajeewa, S. (1997). Evaluation of Coconut Subsidy on Coconut Subsidy Programs. 1- 128pp
3)          Peiris, T. S. G. and Fernando, M. T. N. (1999).   Demand for Farm Managers in the Coconut Estate Sector. 1- 47pp.
4)           Peiris, T. S. G., Henry Nimal Appuhamy, Nainanayake N. P. A. D, Bandaranayake C. K. and Fernando M. T. N.  (2006). Coconut Research, Development and Dissemination of Technologies - Growers Perception. 1-102pp.   ISBN: 955 – 9013 – 06 - 8.
 
5)          Ranasinghe, C. S., Peiris, T. S. G., Jayawardena, J., Perera, L, Fernando, M. T. N. and Wickramananda, I. (2007).   Coconut Palm Decline: An Assessment of the Prevalence and Probable Causes. 1-18 pp.
 
Chapters in a Handbook as a Supplementary Reading
 
1)      Peiris, T. S. G. (1999). Chapter 8 - Database Management in Excel. Handbook on Survey Design and Analysis (Editor. R. O. Thattil), Chapter 8, 52-64 pp.   Postgraduate Institute of Agriculture, University of Peradeniya.
 
 
Papers in Referred Indexed Journals (International)
 
1)            Peiris, T. S. G., Thattil, R. O., and Mahindapala, R. (1995). An analysis of the effect of climate and weather on coconut (Cocos nucifera). J. of Experimental Agriculture, 31 (4), 451-460.
 
2)            Peiris, T. S. G. and Thattil, R. O. (1998). The study of climate effects on the nut yield of coconut using parsimonious models.  J. of Experimental Agriculture, 34, 189-206.
 
3)            Peiris, T. S. G., Hansen, J. W and Lareef, Zubair (2008). Use of seasonal climate information to predict coconut production in Sri Lanka.   International. J of Climatology, 28: 103-10.
 
4)            Siriwardena, P. H. A., Fernando, L. C. P. and Peiris, T. S. G. (2005)A new method to estimate the population size of coconut mite on a coconut nut. J. of Experimental and Applied Acarology, Nertherlands. 37, 123-129.
 
 
5)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Distinguishing lard from other animal fats in admixtures of some vegetable oils using liquid chromatographic data coupled with multivariate data analysis. Food Chemistry, 91, 5-14.
 
6)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Use of gas liquid chromatography in combination with pancreatic lipolysis and multivariate data analysis techniques for identification of lard contamination in some vegetable oils Food Chemistry, 90, 23-30
 
7)            Fernando, L.C.P., Aratchige, N. S., Peiris, T. S. G. (2003). Distribution patterns of coconut mite, Aceria guerreronis and its predator Neoseiulus aff. paspalivorus in coconut palms. J. of Experimental and Applied Acarology. 31, 71-78.
 
Papers in Referred Journals (National and International)
 
1)            Peiris, T. S. G. and Stern, R. D. (1988). Use of statistics package `SAS' in an agricultural research institute: a case study from CRI, Sri Lanka. Cocos. 6, 38‑52.
 
2)            Peiris, T. S. G. (1989). Forecasting the crop yield of a coconut estate. International J. of Coconut Research & Development (Cord), Indonesia 5(2), 67‑77.
 
3)            Peiris, T. S. G. and Senaviratne, E. K. (1989). An alternative approach for analysis of data from a long term experiment. Cocos, 7, 14-20.
 
4)            Peiris, T. S. G. and Pieris, R. A. A. (1991-1993). The effect of bimonthly rainfall on coconut yield in the Semi Dry Intermediate Zone (ILl) in Sri Lanka. Cocos, 9, 1-11.
 
5)            Fernando, W. M. U., Peiris, T. S. G. and Wickramratne, M. R. T. (1991-1993). Variation in seedlings characters of three different coconut cultivars and their use in identification in the nursery.  Cocos, 9, 23-29.
 
6)            Peiris, T. S. G. (1993). Statistical analysis of field experiments in coconut using fewer recordings, J. of Experimental Agriculture. (29), 207-213.
 
7)            Peiris, T. S. G. and Thattil, R. O. (1994-1995). An alternative model to estimate solar radiation. Cocos , 10, 26-34.
 
8)            Peiris, T. S. G. and Thattil, R. O. (1996). Application of agroclimatology to some aspects of Coconut research. J. Plant. Crops (Supplement) in India, 24, 24-35.
 
9)            Peiris, T. S. G. and Thattil, R. O. (1997a). Assessment of the effects of environmental factors on yield of coconut. Cocos,   12, 1-18.
 
10)        Peiris, T. S. G. and Thattil, R. O. (1997b). Alternative methods to determine optimal plot size for perennial tree crops. Cocos, 12, 44-54.
11)        Peiris, T. S. G., Peiris, T. U. S., and Rajapaksha, S. (2000). Prediction of annual national coconut production - a stochastic approach. Sri Lanka J of Applied Statistics, 1 (1), 25-32.
 
12)      Peiris, T. U. S., Peiris, T. S. G,, and Samita. S (2000). Arrival of south-west monsoon rains. Tropical Agricultural Research, 12, 265-275.
 
13)        Peiris, T. S. G., Fernando, M. T. N. and Waidyanatha, U. P. de S (2001). Factors influencing the productivity of coconut estates. J. of Coconut Research and Development (Cord), Indonesia, 17(2), 36 – 48.
 
14)        Peiris, T. S. G., Fernando, M . T. N. and Samarajeewa, S. (2004). Factors influencing the use of coconut oil by the householders in Sri Lanka and their policy relevance to popularize the consumption, International Journal of Coconut Research & Development(Cord), Indonesia. 20 (2), 12-20.
 
15)        Piyasiri, C. H., Peiris, T. S. G. and Samita S. (2004). Change in rainfall and temperature of Low Country Wet Intermediate (IL1) Region of Sri Lanka. Journal of Tropical Agricultural Research, 16, 271-280.
 
16)        Peiris, T.S.G. (2005). Spatial aggregation of multidisciplinary data. Sri Lankan J of Applied Statistics, 5, 29-50.
 
17)        Kularatne, J D J S, Peiris, T. S. G. and Samita S. (2006). Feasibility of single palm plot in coconut experimentation.  Journal of Tropical Agricultural Research, 18, 55-62.
 
18)        Waidyarathne K.P, Peiris T.S.G and Samita S. (2006). Shift in onset of first inter monsoon rain in coconut growing areas in Sri Lanka.  Journal of Tropical Agricultural Research, 18, 1-12.
 
19)        Wickramananda, I R, Peiris, T S G, Neil Fernando, Fernando, L C P and Edgington, S. (2007). Impact of the coconut mite (Acerria guerreronis Keifer) on the coconut industry in Sri Lanka. International J of Coconut R & D (Cord), Indonesia, 23(1), 1-16.
 
20)        Peiris T. S. G., K. P. Waidayaratne,. Samita S. and R. O. Thattil (2007). Control of spatial effect due to neighboring palms in coconut(Cocos Nucifera). International Journal on Coconut R & D (CORD), 23(2), 46-57.
 
21)        Pathirage Anuradha Niranji, D P. and Peiris, T S G. (2007). Integrated Time Series Model to Forecast Monthly Nut Price of Coconut.  Sri Lankan Journal of Applied Statistics, 8, 83-94
 
22)        Peiris, T. S. G. and Kularatne, J. D. J. S. (2008). Assessment of Climate Vriability for Coconut and Other Crops: A Statistical Approach.International Journal of Coconut Research & Development (CORD). 24(1) 35-53
 
23)         Kularatne, J. D. J. S., Peiris, T. S. G. and Samita, S. (2008). Impact of   Covariate on Single Palm Plot Experiments in Coconut. International Journal of Coconut Research & Development (CORD CORD, 24(2), 10-20.
 
24)        Cooray, T. M. J. A. and Peiris, T S G (2008). Day and Night, Electricity Load Forecasting for Peaks Values in Sri Lanka. Sri Lanka Journal of Applied Statistics, 9, 121-131.
 
Papers in Referred Journals (National and International)
1)      Peiris, T. S. G. (2004). Short-term projections for coconut industry in Sri Lanka, Economic Review, Aug/Nov. 15-17.
 
2)      Peiris, T. S. G, Fernando, M. T. N. and Samarajeewa, S. (2004). Economic loss of the mite infection of coconut to individual farmers in Puttalam district: Preliminary findingsJ. of National Institute of Plantation Management, 19 (2), 60-66.
 
Conference Papers in Refereed Proceedings
 
 
1)      Peiris, T. S. G. (1993). The degree of influence of rainfall on coconut. Advances in coconut research and development,413-420, (Eds. Nair, M. K., Khan, P. H., Gopalasundram, P. & Bhaskara Rao, E. V. V.). Oxford & IBH Publishing Co. Pvt. Ltd.
 
2)      Peiris, T. S. G. and Mathes, D. T. (1997). The Analysis of long term rainfall variability at selected location in Sri Lanka. Proceedings of the International Congress on Modelling and Simulation, 06-11 December, 1997, Hobart, Australia. 69-74.
 
3)      Peiris T. S. G. (2004). Forecasting coconut production: issues, approaches, and challenges. In Proceedings of the International Conference of Coconut Research Institute of Sri Lanka – Part I (Review papers and guest presentations), 111 – 147 (Eds: T S G Peiris and C S Ranasinghe). The Coconut Research Institute of Sri Lanka, Lunuwila 61150, Sri Lanka.
 
4)      Piyasiri, C. H., Peiris, T. S. G and Samita S. (2004). Empirical prediction of maximum and minimum air temperature in Sri Lanka. In Proceedings of the International Statistical Conference: Visions of futuristic methodologies. 371-379, (Eds: Basil M de Silva and Nitis Mukhopadhyay), 28-30 December 2004, Postgraduate Institute of Science, University of Peradeniya, Sri Lanka.
 
5)    Peiris, T. S. G. (2005). Role of statisticians towards disaster management in climate. 28-35 pp, Proceedings of the 6th Annual General Meeting of the Applied Statistics Association of Sri Lanka, Prof. V K Samaranayake Auditorium, University of Colombo, Colombo, Sri Lanka.
 
6)      Peiris, T S G (2008) Impacts Assessment due to Climate Change on the Coconut Industry in Sri Lanka.  Proceedings of the 14th Annual Symposium of the Faculty of Engineering, 24-25
 
 
Papers Presented at Conferences/Communications (in abstract form)
 
1)          Thilakasiri, M. A., Peiris, T. S. G. & Gunasekara, T. G. L. G. (1986). Some socio‑sconomic characteristics of coconut based farming systems. Proceedings of the 42nd Annual Session of the Sri Lanka Association of Advancement of Science (SLAAS), 197 pp.
 
2)          Peiris, T. S. G. (1986). Seasonal ARIMA model for forecasting crop‑wise coconut yield in a given estate. Proceedings of the 42nd Annual Session of the SLAAS, 174 pp.
 
3)          Peiris, T. S. G. (1987). SAS ‑ a micro computer software for agricultural research.  Proceeding of the 43rd Annual Session of the SLAAS, 120 pp.
 
4)          Peiris, T. S. G. (1988). Software in micro computers for the analysis of designed experiments.  Proceedings of the 8th National Computer Conference, Sri Lanka, 77 pp.
 
5)          Jayasekara, K. S., Liyanage, M. de. S. and Peiris, T. S. G. (1988). Effect of intercropping on soil erosion and runoff in coconut landsProceedings of the 44th Annual Session of the SLAAS, 35 pp. 
 
6)          Peiris, T. S. G. and Senaviratne, E. K. (1989). The use of daily rainfall in analysis of the repeated measurements data.  Proceedings of the 45th Annual Session of the SLAAS. 39 pp.
 
7)          Peiris, T. S. G. (1989). An alternative approach to analyze the repeated measurements data in perennial crops.  Proceedings of the conference on Statistics for Repeated Measurement in Italy from 6‑9 September, 1989, University of Paduva, Italy.
 
8)          Peiris, T. S. G., Kularatne, J. D. J. S. & Mathes, D. T. (1990). CLIMATE: A user friendly program to analyse climatological variables for agricultural purposes". Proceedings of the 46th Annual Session of the SLAAS. 139 pp.
 
9)          Peiris, T. S. G. (1991). Modeling approach in analyzing field experimental data in coconut. Proceedings of the 47th Annual Session of the SLAAS, 139 pp.
 
10)      Peiris, T. S. G. and Thattil, R. O. (1992). Determination of optimum plot size for coconut based on data from randomized complete block experimentsProceedings of the Int. Biometrics Conference, held in 7-11 December in Hamilton, New Zealand, 179 pp.
 
11)      Peiris, T. S. G. and Thattil, R. O. (1992). Alternative methods to determine the optimum plot size for tree crops.  Proceedings of the 48th Annual Session of the SLAAS, 55 pp.
 
12)      Peiris, T. S. G. and Thattil, R. O. (1993). Estimation of solar radiation at Lunuwila (70 20' N, 710 53'E, 30.5 m). Proceedings of the 49th Annual Session of the SLAAS, 191 pp.
 
13)      Peiris, T. S. G. and Thattil, R. O. (1994). Use of dimensional reduction methods for selection of variables in agro meteorology aspects on coconut. Proceedings of the International Conference of the Royal Statistical Society, held at the university of Newcastle Upon Tyne, 12-16 September, 121 pp.
 
14)      Peiris, T. S. G. and Thattil, R. O. (1994). Application of Agro meteorology to some aspects of coconut research. Proceedings of the International Symposium on Plantation Crops, held at the Calicut, Kerala, India, 30 November - 03 December, 5pp.
15)      Gunathilake, H. A. J., Somasiri, L. L. W., Peiris, T. S. G., Fernando, M. T. N. and Pinto, J. L. J. G. (1995). Current status of weeds and weed management in coconut lands.  Proceeding of Weed Science Society of Sri Lanka.
 
16)      Peiris, T. S. G. and Thattil, R. O. (1995). The analysis of climate system: Parsimonious crop-weather model. Proceedings of the 6th International Conference on Environmetrics, 6-9 December, Malaysia.
 
17)      Peiris, T. S. G. and Mathes, D. T. (1997). Rainfall changes scenarios in coconut growing areas in Sri Lanka. Proceedings of the National Symposium of Climate Change, 7-8 March, Colombo, Sri Lanka.
 
18)      Peiris, T. S. G. and Thattil, R. O. (1997). Climate analysis - the effect of climate on coconut. Proceedings of the National Symposium of Climate Change, 7-8 March, Colombo, Sri Lanka.
 
19)      Peiris, T. S. G. (1997). Evaluation of subsidy programmes in coconut and technology transfer. A paper presented to the International Workshop on Technology Development and Transfer in Coconut,1-5 April, Lunuwila, Sri Lanka.
 
20)      Peiris, T. S. G. (1999). A stochastic model to predict national coconut yield. Proceedings of the International Symposium on Forecasting, 27-30 June, 1999, Washignton D C, USA. 35p.
 
21)      Somasiri, L . L. W., Peiris, T. S. G., Wijebandara, D .M. D. I., and Bandara, E. M. A. T. (1999).   Status of exchangeable bases of the upland soils of the Kurunegala catena of the coconut triangleProceedings of the 55th Annual Session of the SLAAS, 57 pp.
 
22)      Peiris, T. S. G. and Fernando, M. T. N. (2000).   Trend in nut production and utilization.  Proceedings of the conference on coconut industry - meeting the new challenges. 27 June, BMICH, Colombo.
 
23)      Fernando, M. T. N. and Peiris, T. S. G. (2000). Some economic consideration of coconut production and processing.Proceedings of the conference on coconut industry - meeting the new challenges, 27 June, BMICH, Colombo.
 
24)      Peiris, T. S. G. (2000). The role of coconut industry in Sri Lanka towards the world trend on kernel productsThe Proceeding of the International Conference on Plantation Crops, Green Park, Hyderabad, India, 21p.
 
25)      Fernando, M. T. N. and Peiris, T. S. G. (2000). Import duty reduction for substitute oils and its implications on coconut oil industry in Sri LankaThe Proceeding of the International Conference on Plantation Crops, Green Park, Hyderabad, India, 22p.
 
26)    Peiris, T. S. G. and Janet Riley (2002). Aggregation of multidisciplinary indicators in space. Proceeding of the International Biometrics Conference held during 21–26 July, Freiburg, Germany,
 
27)        Peiris, T. S. G., Pramudita, W. and Abenayake, R (2002). Reduction of experimental error in coconut trials.   Proceeding of the International Biometrics Conference held on 21 – 26 July, Freiburg, Germany.
 
28)        Peiris, T. S. G. (2002). Effect of temporal scale aggregation on climate change studies”. Proceeding of the International Workshop on Regional Integrated Assessment of Climate Impacts held at the IL_CIOCCO Hotel, 16-20 September, Castelvecchio Pascoli, Italy.
 
29)      Kularatne, J. D. J. S., Peiris, T. S. G. and Mathes, D. T. (2004). Long-term climate variability in Hambantota. 71, In Proceedings of the International Sri Lankan Statistical Conference. (Eds: Basil M. de Silva and Nitis Mukhopadhyay), 28-30 December 2004, Post Graduate Institute of Science, University of Peradeniya, Sri Lanka.
 
30)      Peiris, T. S. G., Larref Zubair, Piyasiri, C. H. (2004). Forecasting national coconut production – a novel approach.  In Proceedings of the International Sri Lankan Statistical Conference. (Eds: Basil M. de Silva and Nitis Mukhopadhyay), 28-30 December 2004, Post Graduate Institute of Science, University of Peradeniya, Sri Lanka.
 
31)      Peiris T. S. G.,Madawala Wijeratne, Aanadacumaraswamy, A. Ranasinghe, C. S., Jayakody, A. and Fernando, M. T. N. (2004). Impact of climate change in Sri Lanka on coconut and tea industry. Paper presented at the 2nd AIACC Asia and the Pacific Regional workshop on assessment of climate change impacts2-5 November, Traders hotel, Passay City, Philippines.
 
32)      Peiris, T. S. G. and Kularatne, J. D. J. S. (2004). Analysis of climate change in Hambantota district in Sri Lanka. In Proceedings of the International conference on Sustainable Water Resources Management in Changing Environment of the Monsoon Region (Eds: Srikantha Herath, Assela Pathirana and S. B. Weerakoon), 17-19, November, BMICH, Colombo, Sri Lanka.
 
33)      Gunatilake, H A J, Joseph, P G and Peiris, T S G (2006). Sustainable Biomass Production in Sri Lanka and possibilities for Agro-forestry Intervention.
 
 
34)      Peiris, T. S. G. (2006). Impact of climate change on coconut industry in Sri LankaPaper presented at the 3rd International conference on Climate Impact and Assessment (TICCIA), 24-27 July, Cairns, Australia.
 
35)        Mathugama, S. C.  and Peiris, T. S. G. (2009).  Analysis of the occurrence of dry spells in the DL2 region of Sri Lanka, Proceeding of the International Statistics Conferece, 8-10 January, Sri Lanka Foudation Institute, Sri Lanka, 10p
 
36)        D. C. Wickramarachchi, S. Samita and T. S. G. Peiris (2009). An Algorithm to detect over-dispersion in multinomial data.Proceeding of the International Statistics Conferece, 8-10 January, Sri Lanka Foudation Institute, Sri Lanka, 21p
 
 
As an Editor in Conference Proceedings
 
1)            Peiris, T. S. G. & Ranasinghe, C. S. (2004). Preceding I (Reviews & Invited Papers) of the International Conference of the CRISL: Tree of Life – New Trends in the Millennium 1-281 pp. ISBN: 955-9013-03-3.
 
2)            Peiris, T. S. G. & Ranasinghe, C. S.  (2004). Abstracts of International Conference of CRISL 1-85.
 
3)            Peiris, T. S. G. & Ranasinghe, C. S. (2005). Proceeding II (Contributed Papers) of the International Conference of the CRISL: Tree of Life – New Trends in the Millennium (1-361 pp). ISBN: 955-9013-03-3.
 
4)            Peiris, T. S. G. & Ranasinghe, C. S.  (2008). Abstracts of the National Statistics Conference organized by the Applied Statistics Association of Sri Lanka (ASASL), 7 January, 1-14.
5)            Peiris, T. S. G. & Gunaratne, L. H. P..  (2009). Abstracts of Contributed and Invited Papers, International Statistics Conference organized by the Applied Statistics Association of Sri Lanka (ASASL), 9-10 January, 2009 (1-26 pp), ISBN 978-955-0056-00-2
 
 
 
Invited Speeches
 
Peiris, T S G (2007). Use of Statistics for Disaster Management.  At he Section E1 (Physical Science) of the Sri Lanka Association for the Advancement of Science (/SLAAS) on 07th December 2007. .
 
Peiris, T S G (2006). Opportunities for Research in Applied Statistics.  At he Section E1 (Physical Science) of the Sri Lanka Association for the Advancement of Science (/SLAAS) on 13th December 2006.
 
Peiris, T S G (2006). Assessment of Climate Change Impacts on Vulnerability of Coconut Sector in Sri Lanka.At the Hector Kobbekaduwa Agrarian Research & Training Institute (HARTI) on 6th April 2006
 
Peiris, T. S. G. (2005). Role of Statisticians Towards Disaster Management in Climate. 28-35 pp, Proceedings of the 6th Annual General Meeting of the Applied Statistics Association of Sri Lanka, Prof. V K Samaranayake Auditorium, University of Colombo, Colombo, Sri Lank
 

 


 
5.1    Undergraduates
Under Graduates - University of Moratuwa  
Level 1    -     Probability and Statistics – MA1020
Level 2    -     Applied Statistics – MA3020
                     Quantitative Techniques in Transport -
Level 3    -     Applied Statistics – MA3020
Level 4    -     Time Series and Stochastic Process – MA4010, 
                     Linear Model and Multivariate Analysis – MA4030
 
Under Graduates - University of Sri Jayawardenapura)
Level 4 (Statistics Special)Design and Experiments
                                               Time Series Analysis     
5.2    Postgraduates
Post Graduates - University of Moratuwa 
 
M Sc Operational Research      Linear Models and Applied Statistics
                                                Linear Models
                                                Time Series Analysis
M Sc Financial Mathematics     Statistical Quality Control
                                                Linear Models and Data Analysis
M Sc in Energy                  Statistical Applications
 
Post Graduates - University of  Sri Jayawardenapura  
M Sc in Applied Statistics Time Series Analysis
                                                Data Analysis
Post Graduates - University of  Colombo
M Sc in Applied Statistics – Advanced Inferences (in 1990 & 1991)
M BA                                 - Quantitative Techniques (2002 & 2003)
                                                Computer Application
Post Graduates – PGIA, University of  Peradeniya (Since 1997)
M Sc/PG Diploma in Bio Statistics - Time Series Analysis
                                                            Regression Analysis
                                                            Multivariate Analysis    
 
Post Graduates – PGIS, University of  Peradeniya (in 2005 and 2006)
M Sc in Applied Statistics         Regression Analysis
                                                 Design Experiments
                                                Statistical Methods
 
Other  Universities
§          Temporary Lecturer - Department of Engineering Mathematics, Peradeniya University, Sri Lanka in 1979 to 1980 (Subject: Engineering Mathematics);
§          Visiting Lecturer for M Sc in Statistics - Department of Statistic, Colombo University, Sri Lanka from 1987 to 1989 (Subject: Advanced Inferences);
§          Visiting Lecturer - Faculty of Graduate Studies,University of Colombo, from 1999 and 2001 (Subjects: Time series and Computer Applications);
§          Visiting Lecturer – Post Graduate Institute of Agriculture (PGIA), University of Peradeniya since 1997 to date (Subjects: Time Series, Regression Analysis and Multivariate Analysis);
§          Visiting Lecturer – Department of Statistics, Sri Jayewardene University since 1998 for both under-graduates and post-graduates. (Subjects: Time series, Design of Experiments and Data Analysis);
§          Visiting Lecturer – Post Graduate Institute of Science (PGIS), University of Peradeniya since 2002. (Subjects: Regression Analysis, Design and Experiments and Statistical Method);
 
Other Organizations
§       Lecturer - Institute of Plantation Management in Sri Lanka (Basic Statistics for the course on Diploma in Plantation Management);
§       Conduct various statistical courses from time to time organized by the Applied Statistics Association of Sri Lanka (ASSSL) and Board of Study Bio Statistics at PGIA;
§       Lecturer – Coconut Research Institute (CRI); Conduct training courses on the use of statistics, statistical software and computer applications for the CRI staff.
§       Lecturer in Business Statistics for CIMA - AG School Negambo.
 
    

 
 
§            Twenty five years of experience of statistical analyses in various areas such as agriculture, socio-economics, climate, social science, medical science etc.;
§            Competent in the use of statistical packages such as SAS, Genstat, Minitab  and very good in writing SAS programs;
§            Monitoring and evaluation of agricultural research and human resources management;
§            Good communication skills in English and Sinhalese;
§            Good in writing reports (statistical and non-statistical);
§            Designing and updating of CRI Website (http:www.cri.lk);
§            Management of relational databases in research and non-research activities;
§            Designing statistical indicators/statistical method to evaluate research projects;
§            Working experience with multi-disciplinary teams;
§            Teaching experience in universities and in other programs/courses;
§            Experience in efficient deployment and management of staff.;
§            Experience in routine administrative work in the Division;
§            Publishing my work in referred journals in locally and internationally and survey reports for planners;
§            Refereed in research articles for various local journals;
§            Publishing popular articles in the news papers and various news letters;
 
 
 

 

Main Functions  at the Coconut Research Institute (September 1980 – August 2007):

·           Provide specialist advice to the scientists in various disciplines on data collection, data analysis, interpretation of results, designing of field experiments & surveys and statistical computing;
·           Develop strategies for ongoing management using statistical information;
·           Forecast the distribution of national coconut production to the Ministry of Coconut Industries for planning activities;   
·           Conduct research in Applied Statistics and Climate Change relevant to coconut industry
·           Conduct socio-economic surveys, analysis of data and preparation of associated reports with Agricultural Economics Division;
·           Responsible for administration and management of the Division;

 
 
7       Grants Achieved as a Principal Investigator
Project
Funding agencies
Year started
Evaluation of coconut
subsidy programs
Plantation Ministry (CESS)
1997
Factors effecting on the
Performance of coconut estates
Plantation Ministry (CESS)
1996
Change of seasonal rainfall in SL
National Science Foundation (NSF)
1999
Impact of climate change on
coconut in agro-ecological regions
Centre for Climate Change Studies
Department of Meteorology (CCCS)
2001
Assessment of impacts and
adaptation to climate change in coconut
International START Secretariat,
 USA (UNEP/GEF)
2002
Climate analysis in Hambantota
District
Ministry of Environment
& Natural Resources
2003
Regional climate variability
National Science Foundation (NSF)
2004
Conduct a diagnostic survey on CRI recommendations
Plantation Ministry (CESS)
2004
Effect of different frequency of harvest
Plantation Ministry (CESS)
2005
Consumer survey on coconut oil and coconut
Plantation Ministry (CESS)
2005
Data capturing survey towards forecasting & updating national bi-monthly coconut yield
Plantation Ministry (CESS)
2006
 
 
Effect of spatial and temporal variability on coconut mite on coconut industry Plantation Ministry (CESS)
Plantation Ministry (CESS)
2007
Publish a book on, “Rainfall Analysis in coconut growing areas
Plantation Ministry (CESS)
 
2007
Forecasting Dry Spells in Dry Zone of Sri Lanka*
National Research Council
 
2009
Spatial & Temporal Variability of Rainfall in Sri Lanka*
University of Moratuwa
2009
(* projects are being carried out)

 

 

 
 
 8.    Supervision of Post Graduate Research
 
Completed Post- graduate Research Projects
Student
Degree
Year
University
Mr. W A S P Weerathunge 
M Sc
1991
Univ. of Colombo
Miss T U S Peiris 
M Phil
2004
PGIA, Univ. of Peradeniya
Mrs D D Basnayake
M Sc
2006
PGIS, Univ. of Peradeniya
Mr. J D J S Kularatne
M Phil
2008
PGIA, Univ. of Peradeniya
Mr R M M Hasitha Perera
M Sc
2009
PGIS, Univ. of Peradeniya
Mrs. P S Yatapana*
M Phil
2009
Univ. of Colombo
Mrs W P Waiudayarathne
M Phil
2010 PGIA, Univ. of Peradeniya
Mr. D C Wickramaarchchi*
M Phil
2010
PGIA, Univ. of Peradeniya
* Co-supervisor
 
Full time PG Research Students (at present): CLICK HERE FOR DETAILS
University of Moratuwa
 Ph D -   Mrs S C Mathugama,
 Ph D (unclassified)  - Mr. W D Lakmal  
 
PGIA,  University of Peradenia
 Ph D -   Mrs  S Kondasinghei
M Phil – Mrs W P Waiudayarathne
 M Phil – Mr. M C Alibito 
 M Phil -   Mr D C Wickramarachchi*    

 
 
9.    Professional Activities
·        Fellow of the Royal Statistical Society (FRS) in UK
·        Member of the Board of Study in Bio-Statistics at the Post Graduate Institute of Agriculture (PGIA), University of Peradeniya, Sri Lanka.
·        Member, Technical Advisory Committee of the  Center for Climate Change Studies (CCCS), Department of Meteorology in 2001/2002
·        Member of the Working Group of the National Action Plan on Climate Change. 
·        Held various key posts of the Applied Statistic Association in Sri Lanka (ASASL)
·        Hony. Secretary of ASASL in 2007 and 2008

 
 
10.    Overseas Scientific Visits
 
 
Country
 
 
                       Place/s
 
      Period
 
           Purpose
UK
Department of Applied Statistics
(University of Reading), East Malling Research Institute, Scottish Agricultural Statistical Service, East of Scotland College of Agriculture, West of Scotland College of Agriculture (Edinburgh), Scottish Crop Research Institute (Dundee), Rowett Research Institute & Macaulay Land Use Research Institute (Aberdeen), Rothamsted Experimental Station.
Jan- Jun, 87
Familiarization tour
 on the application
 of Biometrics and use of SAS for agriculture research in UK
Italy
Brissonne/Brixen
(2‑ 8), Sep 89
International conference*
Malaysia
Universiti Teknologi Malaysia,
Johor Bahru, Malaysia
(25–31) Aug 90
International conference*
 India
National Academy of Agricultural
Research Management, Hyderabad,
 
(16‑30) Sep 90
 International Workshop on
 MIS for Agricultural Research.
India
Central Plantation Crops
Research Institute (CPCRI), Kerala.
(23‑ 29) Aug 91
International conference*
New
Zealand
University of Otago,
Hamilton
(05 ‑ 13) Dec 92
International conference*
India
 
ICRISAT, Hyderabad
 
(01 ‑ 14) Sep 94
Fellowship
UK
Silsoe College, Bedford
(15 Sep –
10 Oct) 94
Fellowship
UK
University of Newcastle
Upon Tyne, Newcastle
(12-16) Oct 94
International conference*
India
Calicut, Kerala
(23‑ 29) Nov 94
International conference*
Malaysia
Kuala Lumpur, Malaysia.
(04-10) Dec 95
International conference*
Australia
Hobart, Tasmania
(04-19) Dec 97
International conference*
USA
Washington D C.
(25-30) Jun 99
International conference*
UK
Bio-mathematics Dept.
IACR-Rothamsted, Harpenden
( on sabbatical leave from CRI)
Oct 2001 –
 June 2002
International conference*
Germany
Freiburg,
June 2002
International Conference*
Italy
Pascoli, 
(16-20) Sep, 2002
International conference*
USA
Int. Research Inst. for Climate
Prediction, New York
01-23 Nov, 2003
Fellowship
Philippines
Conference in Passay city &
Philippines Coconut Authority
01-08 Nov, 2004
International Workshop*; Visit Philippines Coconut Authority
Australia
Cairns
21-29 July, 2006
International Conference*
* To present a paper

 

                                                                                                     
11. Non-related Referees:
 
Dr. (Mrs) C Jayasekara

Director, Coconut Research Institute

Lunuwila

Sri Lanka

 
Prof.R.O.Thattil

Department of Crop Science,

Faculty of Agriculture

University of Peradeniya, Peradeniya

Sri Lanka

Prof. A.K.W.Jayawardena

Dean

Faculty of Engineering

University of MOratuwa

Moratuwa

Sri Lanka

 

 
 

 

 

 

 

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