 | Professor Head - Department of Geography email : lasan@geo.cmb.ac.lk |
| Academic Records * P.hD. (Colombo) , University of Colombo, Sri Lanka, 2010 * M. Sc. in Geo-Informatics, Asian Institute of Technology, Thailand, 1995 * B.A. (Hons) in Geography, University of Colombo , Sri Lanka , 1985 |
| Areas of Specialization GIS and Remote Sensing, Settlement Studies, Environmental Studies |
| Research Interest Environmental Studies, Climate Change, Extreme Rainfall Events, Surface Temperature Changes, Home Grading and Urban Peri-Urban agriculture |
| Teaching Areas Undergraduate : Cartography, GIS, Urban Studies, Statistics Postgraduate : GIS and Remote Sensing, Climate Change, |
| Research Publications (Conference Papers) • Manawadu, L., and Dissanayake, P. K. (2017). Determination of aerosol particles and risk analysis of asthma in the city of Colombo. ESRI user conference 2017. • Uduporuwa, R.J.M., and Manawadu, L. (2017). Impact of Urban Growth on Vegetation cover in World Heritage city of Kandy, Sri Lanka: An assessment using GIS and RS techniques. International conference on social science and economics (ICSSE). Singapore. • Thushari, H. N., and Manawadu, L. (2016). Flood monitoring in greater colombo river basin using Hec-RasFloodplan analysis. 37thAsian Conference on Remote Sensing (ACRS). • Maramble, B., Silva, P., Ranwala, S., Gunawardhana, J., Weerakoon, D., Wijesundara, S., Manawadu, L., and Athapattu, N. (2011). Invasive alien fauna in Sri Lanka: National list, impacts and regulatory framework. Island Invasives: Eradication and Management, In C.R.Veitch, M.N. Clout and D.R. Towns (Ed.), Proceedings of the International Conference on Island Invasives. (pp.445-450). IUCN, Gland, Switzerland. • Manawadu, L., and Samarakoon, L. (2005). Identifacation of air pollution potential areas and its temporal and spatial pattern of the city of Colombo - Applying GIS and RS. The 26thAsian conference on remote sensing. • Manawadu, L. (2009). Rainfall fluctuation and changing pattern of agriculture practices. water for fool conference. Colombo, Sri Lanka. • Manawadu, L. (2009). Spatial and temporal changes of air temperature in Sri Lanka, National geographic conference, http;//archive.cmb.ac.lk:8080/research/bitstream/70130/3811/im.pdf. • Manawadu, L., and Karunarathne, Y. (2004). Identification of erosion prone area in Kukule watershed using Geographical Information Systems. In R. P. De Silva (Ed.), Proceeding of the first national symposium on Geo-Informatics, (pp. 121 - 132). Peradeniya. |
| Research Publications (Abstract Form) • Wijeratne, V.P.I.S., and Manawadu, L. (2016). Identifying the spatial impact of land use and land cover changes on land surface temperature. International conferences on Anthropology, Adaptation and resilience in climate change regime, 22nd- 23rdof October, 2016, The University of Dhaka. • Senalankadhikara, S., and Manawadu, L. (2016). Rainfall fluctuation and changing pattern of agriculture practices. International conferences on anthropology, Adaptation and resilience in climate change regime, 22nd and 23rd October, 2016. • Samanmali, M.A.D., Manawadu, L., and Siriwardane, M.S.P.M. (2016). The identification of shoreline change and coastal vulnerable and its impact of on Eastern part of coastal region of Sri Lanka using the GIS and RS. International conferences on anthropology, Adaptation and resilience in climate change regime, 22nd and 23rd October, 2016. • Sanjeewani, R.M.S.S. and Manawadu, L. (2016). An Assessment of spatial variation of land surface temperature over urban environments: A case study of Kandy city, Sri Lanka. international conferences on anthropology, Adaptation and resilience in climate change regime, , 22nd and 23rd October, 2016. • De Silva, Nandaseela. S.M.A.T., Manawadu, L., and Matharaarachchi, D.S. (2016). The dark cave: identification of speleomorphological features and formation. International research conference-faculty of Arts, University of Colombo,12th and13th October 2016., Pp 64. • Mathatraarachchi, D.S., Manawadu, L., and Gunatilake, J., (2014). Evaluation of urban air pollution distribution in the Colombo municipal council area, Sri Lanka. Geostatistical and geospatial approaches for the characterization of natural resources in the environment: Challenges, processes and strategies, Jawaharlal Nehru University, New Delhi, India,Pp 16. • Sanjeewaneeni, R.M.S.S., and Manawadu, L. (2014). Dynamic trends of rainfall extremes in sri lanka. Proceedings of the international symposium on ICT for environmental sustainability. In V.P.A. Weerasinghe and W.M.D.N. Wijeyaratne (Ed) Department of Zoology, University of Kelaniya and KISSEL Group, Ibaraki University, Hitachi, Japan. • Soyza, M.B., Ranagala, M., and Manawadu, L. (2013). Model for river bank conservation and proper land use planning. Proceedings of the 18th International forestry and environment symposium. Department of forestry and environmental science, University of Jayawardhanapura, Sri Lanka. Pp 91. • Manawadu, L., and Ranagalage, M. (2012). An assessment of appropriates of high resolution satellite data in estimating biomass availability in Sri Lanka. Population, development, GIS and Remote Sensing. National geographic conference, 2012. Pp 64. • Buddhi, M., Silva, P., Wijesundra, D., Weerakoon, D., Ranwala, S., Manawadu, L., Atapattu, N., and Gunawardena, J. (2009). Management of invasive alien species in sri lanka impact of international trade, transport and AID. International congress on biological invasions, http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZWRQ200911001306.html • Vithanage, Jagath., Weerakoon, Devaka., and Manawadu, L. (2007). Mapping and identification of Forest type/Eco Systems in lower region of Kala Oya Basin and Floodplain during rainy season, using GIS and RS. ENVISAT symposium Switzerland, From 23rd to 27th of February, 2007. • Manawadu, L. (2005). Spatial and temporal changes of the urban heat islands in Bangkok Metropolitan Region (BMR). 26thAsian Conference of Remote Sensing (ACRS), Bangkok. • Manawadu, L., and Mallikarachchi, B.S. (2005). Spatial and temporal patterns of the air pollution concentration in the city of Colombo and impacts of the socio-economic factors. Map India 2005, From 7th to 9th February, 2005, Hotel Taj Palace, New Delhi. http://www.mapindia,org/2005/papers/Environment%20Planning/8abs.htm. • Manawadu, L. (2003). Liberalized economic policies and occupational changes of Colombo city, Using Geographical Information Systems. 9thInternational conference on Sri Lankan studies, University of Ruhuna, Matara, Sri Lanka. Pp 168. • Thushari, H.G.N., and Manawadu, L. (2016). Flood monitoring in greater Colombo river basin using hec-ras floodplain analysis. National conference on geospatial sciences & disaster management, University of Colombo,19th January 2016, Pp 16. • Dissanayake, P.R.T., Manawadu, L., and Karunadasa D.M. (2016). Determination of aerosol particles and risk analysis of asthma in the city of Colombo. National conference on geospatial sciences & disaster management, University of Colombo, 19th January 2016, Pp 17. • Karunawardane, L.I., & Manawadu, L. (2016). Monitoring of spatial variation pattern of urban heat in relation to changes in urban land use and physical densities using GIS and RS techniques; A case study in Kandy municipal council. National conference on geospatial sciences and disaster management, University of Colombo,19th January 2016, Pp 31. • De Silva, G.R., and Manawadu, L. (2016). Urban expansion analysis using Remote Sensing & GIS. National conference on geospatial sciences & disaster management, University of Colombo, Pp 40. • Sanjeewani, R.M.S.S., and Manawadu, L. (2015). Dry Weather Extream of Sri Lanka and impact of Southern oscillation, Proceedings of the 20th international forestry and environment symposium, Department of forestry and environmental science, University of Jayawardhanapura, Sri Lanka. • Manawadu, L. (2010). Spatial and temporal changes of lightning incidents in Sri Lanka. National Geography Conference, University of Ruhuna. • Ranagalage, Manjula., and Manawadu, L. (2010). Flood hazard mapping and damage assessment in lower basin of Kelani River. National geography conference, University of Ruhuna. • Liyanage, Nirosha., Werasekara, Milani., and Manawadu, L. (2009). Spatial and temporal changes of air temperature in Sri Lanka. Geography for the millennium, National geography conference, University of Peradeniya. Pp 14. • Wijesekara, S., and Manawadu, L. (2009). The adverse impact of rapid urbanization on the vegetation covers in the Colombo Metropolitan Region. Geography for the Millennium, National Geography Conference, University of Peradeniya, Pp 109. • Ranagalage, Manjula., Muthuwatta, Lal., and Manawadu, L. (2009). Estimation of spatial flow pattern of surface water using a GIS based model; A case study of Dambulu Oya sub catchment of Kala Oya basin. Geography for the millennium, National geography conference, University of Peradeniya, Pp 34. • Tushari, Nadeeka. H.G., and Manawadu, L. (2009). Geoview’s capability of using satellite images in preparation of 5000 scale spatial data. Geography for the millennium, National geography conference, University of Peradeniya. Pp 37. • Bandaragoda, Krishani. B.G., and Manawadu, L. (2009). Land use and land cover dynamics: A case study of the Kaduwela, Kolonnawa and Colombo municipal council area in Kelani river basin. Geography for the millennium, National geography conference, University of Peradeniya, Pp 86. • Manawadu, L. (2009). Effectiveness of space borne data in identifying the changing pattern of surface temperature in an urban area: A case study in the city of Colombo. Geography for the millennium, National geography conference, University of Peradeniya, Pp 106. • Manawadu, L. (2009). Exploring the reasons for Aggravation of silent killer in the city of Colombo, Geography for the millennium, National geography conference, University of Peradeniya. Pp 107. • Manawadu, L., and Wijesekara, Saseeka. (2009). The adverse impact of rapid urbanization on urban development in the Colombo district: a case study using Geographical Information Systems and Remote Sensing, Eleventh annual scientific sessions, Population association of Sri Lanka. • Manawadu, L., and Jayasekara, Dilini. Piyumika. (2007). Resource mapping and identifying the interdependency of the neighboring dwellers with the “Koswatte” Forest plantation (Alawwa D.S Division in the Kurunegala District). First annual symposium on social science & humanities, University of Sabaragamuwa. ISBN – 9789556440232. • Manawadu, L., Ranagalage, Manjula., and Wijesekara, Saseeka. (2008). Climate change in Sri Lanka, Annual research symposium, University of Colombo, October, 2008, Pp.12. doi: 10.13140/2.1.3120.7202. |
| Research Publications (Journal Paper) • Sanjeewani, R.M.S.S. and Manawadu, L. (2016). Spatial trends of land surface temperature variation over selected urban regions in Sri Lanka using Remote Sensing. 37thAsian Conference on Remote Sensing. Colombo, Sri Lanka • Manawadu, L. (2016). Reduce Green House Gas (GHG) emission through the best practices of organic waste management: A case Study at Kesbewa Urban Council, Sri Lanka. International Journal of Scientific Progress and Research (IJSPR), Volume 30.Pp 23– ISSN 2349-4689. • Uruporuwa, R.J.M. and Manawadu, L. (2015). Evolution of Spatial Structure of World Heritage City of Kandy, Sri Lanka: An Analysis of Population Density Change. International Journal of Social Science and Human Behavior, Volume 2.Pp 41-45 - ISSN 2374-1627. • Uduporuwa, R.J.M. and Manawadu, L. (2015). Identification of Occupation Clustering in Kandy City, Sri Lanka: An Investigation of Residential Location Pattern by Occupational Status. International Journal for Innovation Education and Research, Volume 3.Pp 27-41 – ISSN 2411-2933. • Uruporuwa, R.J.M. and Manawadu, L. (2015). Residential Segregation in South Asian Cities: An investigation of residential segregation based on ethnicity of world heritage city of Kandy, Sri Lanka. International journal of humanities and social sciences, Volume 5, Pp 217-235 – ISSN 2250-3226. • Manawadu, L. and Manjula,Ranagalage. (2013). Aggravation of silent killer: air pollution in the city of Colombo. International journal of scientific and research publications, Volume 3, Pp 1-10 – ISSN 2250-3153. • Ranwala, S., Marambe, B., Wijesundara, S., Silva, P., Weerakoon, D., Atapattu, N., Gunawardena, J., Manawadu, L., and Gamage, G. (2012). Post-Entry risk assessment of invasive alien flora in Sri Lanka – Present status, gap analysis and the most troublesome alien invaders. Weed science research, Volume 18, Pp 863 – 871.ISSN 1815-10944. • Manawadu, L. and Liyanage, N. (2008). Identification surface temperature pattern of the city of Colombo. Engineer journal of the institution engineers, Sri Lanka, Volume XXXXI. ISSN 1800-1122, Pp 133-140. • Manawadu, L., & Fernando, N. (2008). Climate Change in Sri Lanka, University of Colombo Review. New Series Volume 1, Pp 130 – 145, ISSN 1800-3664. • Manawadu, L. Frenando, N., and Ranagalage, M. (2006). Choropleth maps: selection of an appropriate classification method. Sri Lanka journal of Geo-Informatics, Geoinfomatics society of Sri Lanka (GISSL), Volume 3, Pp 43-58. • Manawadu, L. (2003). Ethnic Segregation in the City of Colombo, Sri Lanka. Journal of Population Studies, Volume 6.Pp 61-78. ISSN: 1391-3433. • Manawadu, L. and Fernando, N. (2009). Processes driving ethnic segregation in cities: A case study of the city of Colombo, Sri Lanka. University of Colombo review, new series, Volume 2, Pp 01-18. ISSN 1800-3664. |
| Research Publications (Books/Book Chapters) • Samanmali, M.A., and Manawadu, L. (2016). Spatial distribution of air pollution in the city of Colombo, Sri Lanka: Using GIS & Remote Sensing A case study of Colombo City, Sri Lanka. Lambert academic publishing – ISBN 978-3-656-93638-8. • Samanmali M.A., Manawadu L., and Gunathilake J. (2016), Evaluation of urban air pollution distribution in the Colombo municipal council area, Sri Lanka, N.J. Raju (ed.), Geostatistical and geospatial approaches for the characterization of natural resources in the environment - ISBN 978-3-319-18663-4. • Sanjeewani, R.M.S.S., and Manawadu, L. (2016) behavioral dynamics of rainfall extremes in Sri Lanka: from 1981 to 2010. Lambert academic publishing – ISBN 978-3-659-88043-8. • Manawadu, L. (2012). An Assessment of the degradation of Air quality in the city of Colombo: Using GIS and Remote Sensing Techniques. Lambert academic publishing – ISBN 978-3-8484-4137-2. • Bandara K., and Manawadu, L. (2011). Identification of desirable and vulnerable regions in an urban Area – A GIS based technology, Case study, Colombo, Sri Lanka. Lambert academic publishing – ISBN 978-3-8454-7121-1. • Liyanage P.K.N.C., and Manawadu, L. (2011). Spatial Variability of Surface Temperature – Use of thermal remote sensing as an alternative to measure surface temperature: A case study of Colombo, Sri Lanka. Lambert Academic Publishing – ISBN 978-3-8454-4313-3. • Manawadu, L. (2011). Potential surface analysis: An alternative approach for demarcating the appropriate land use zoning in urban areas: A case study of Colombo, Sri Lanka. Lambert academic publishing – ISBN 978-3-639-37272-4. • Perera, K.A.M., and Manawadu, L. (2011). Urban spatial structure analysis: An alternative approach using Remote Sensing & GIS- A case study in Battaramulla, Sri Lanka. Lambert academic publishing – ISBN 978-3-8465-1136-7. • Thaushari, H. and Manawadu, L. (2011). Flood Monitoring using SAR data: An alternative approach using Remote Sensing & GIS: A case study at AttanagaluOya basin in Gampha District, Sri Lanka, Lambert academic publishing – ISBN 978-3-8473-1476-9. • Manwadu, L. (2010). Review of databases on invasive alien species in Sri Lanka: strengthening capacity to control their introduction and spread. In B. Marambe., P. Silva., S.Wijesundara., and N. Atapattu (Ed), Biodiversity secretariat of the ministry of environment, Sri Lanka. • L. Manawadu and Karunadasa, D.M.K (2009) Land survey, Wijesuriya publications, ISBM, 978-955-652-571-7 • L. Manawadu (2009) Dictionary of Geographical Information Systems, Wijesuriya publications, ISBN, 978-955-652-580-0 • L. Manawadu and Liyanage N. (2008), Third world urbanization (Sinhala), Wijesuriya publications, ISBN, 978-955-652-405-5 • L. Manawadu and Perera P.K (2008) Statistical techniques (Sinhala) Wijesuriya Publications, ISBN, 978-955-652-404-8 • L. Manawadu and Perera P.K (2008) Statistics (Sinhala), Wijesuriya publications, ISBN, 978-955-652-391-1 • Wilson W.N, L. Manawadu, and Ranagalage, M (2008) Landslides as a natural hazard (Sinhala), Wijesuriya publications, ISBN, 978-955-652-390-4 |
| Research Projects • Fuelwood Assessment Survey in eleven administrative districts in Sri Lanka, Funded by UNDP. The main task was to estimate the potential fuelwood by GN division level using GIS and Remote Sensing techniques, 2016 (Worked as a team leader). • Preparation of database for monitoring impacts of urban and peri-urban agriculture and forestry on climate change adaptation and mitigation in Kasbewa Urban Council Area, Funded by RUAF, The Netherlands, 2013 (Worked as a team leader). • Preparation of GIS database for the minor irrigation systems for the Ministry of Agriculture, Industries, Minor Irrigation and Environment of Western Province, 2012 (Worked as a team leader). • Feasibility study of Medawachchiya-Trincomalee Railway line. The client was the Ministry of Transport. Identification of alternative traces, Maximum flood Level and return periods and soil investigations are some of the GIS,GPS and RS related activities, 2012 (Worked as a team leader). • Biomass Assessment of Sri Lanka for EnerFab Private Limited. The main task was to estimate Biomass potential of the country using High Resolution satellite data and Google completed in May 2011. • Preparation of a GIS database for Invasive Alien Species in Sri Lanka, funded by the GEF/UNDP project, conducted by the Ministry of Environment and Natural Resources. The database was developed on Google and this is an on-line interactive database prepared in 2009. • Preparation of a Web-Based Tourist Guide Information System for North Central Province using GIS and Remote sensing, Sri Lanka according to the quest made by the Provincial Council of North Central Province completed in 2009. • Preparation of a aspatial database for village reawaking programme organized by the Ministry of Rural Industries and self-employment promotion in 2009. • Hakwatuna Project – targeting to prepare a zonal map and flood level of the Hakwatuna Oya for an Eco-tourism resort. Data collection was performed using Google, GPS and total station. Analysis of data were completed mainly by using ArcGIS in 2008. • Preparation of an early warning system on Bird flu deceases in Sri Lanka for the department of Livestock, 2008. • Preparation of a resource inventory for the Southern province of Sri Lanka, Funded by Southern Province Rural Economic Advancement Project (SPRDP), 2006. • Preparation for an aspatial database for Samurdhi beneficiaries using 75,000 records from 23 administrative districts in Sri Lanka in 2002 • Team member of the Technical and Socio-Economic survey of Asian Development Bank Funded Rural Electrification Schemes in Sri Lanka, 1997 |
| Grants Awarded • Offered by the University of Colombo to study the Urban Flood occurrences and anthropogenic impacts in Colombo and suburbs in Sri Lanka, 2017 • offered by the National Science Foundation of Sri Lanka to Analyze and Identification of forest types/eco systems in Lower region of Kala Oya basin and assessment of Inundation pattern by flooding during rainy season and dry season using RS and GIS, 2004 (Duration of the grant is 1 year). • A two-weeks scholarship grated by the National Space Agency of Japan (NASDA) to attend training programme in Coastal Zone Management using Remote Sensing and Geographical Information Systems ,2002. • Japanese Scholarship Programme Offered by the Asian Institute of Technology, Bangkok, Thailand in 1994. Duration of the programme was 20 Months). • Six weeks academic exchange programme provided by German Academic Exchange Service (DAAD), in 2001. • A two-week training programme on Application of Geographical Information Systems in Regional Planning, Conducted by Indian Institute of Remote Sensing, DehraDun offered by Ministry of Finance and Ethnic Affairs in 1998. |
| Positions held • Head, Department of Geography, University of Colombo, from January 2015 to-date. • Member of the Board of Confucius Institute of the University of Colombo, from 2016 to-date. • Member of the Board of Management of Social Policy Analysis and Research Center (SPARC), University of Colombo from 2016 to to-date. • Director, Career Guidance Unit, University of Colombo. From March, 2014 to 2016. • Coordinator, Computer Teaching Unit and Student’s Computer Unit Faculty of Arts, University of Colombo, January, 2012 to to-date. • Academic coordinator, Postgraduate Diploma in Environment and Regional Development, Department of Geography, University of Colombo, 2011/12 • Member of the steering committee of the English Medium Transition Programme, Faculty of Arts, 2009. • Academic coordinator, Master of Science in Geoinformatics, Institute of Human Resource Advancement, University of Colombo 2008 to 2014. • Member of the Subject Review Panel of the Quality Assurance and Accreditation Council of the University Grants Commission, Sri Lanka. 2008. • Member of the task force to prepare a National Policy on Spatial Data Infrastructure in Sri Lanka, 2007. • Member of the Leave and award committee, faculty of Arts, University of Colombo, 2006 to 2010. • Project Director, Geoinformatics Center, Asian Institute of Technology, Bangkok, Thailand from March 2005 to February 2006. • Assistant Secretary, Population Association of Sri Lanka (PASL) from August 2002 to to-date. • Honorary Secretary, Sri Lanka Association of Geographers (SLAG), from 22 January 1999 to 2000. • Academic Counsellor, Faculty of Arts University of Colombo, from 1999 to to-date. Responsible for academic matters, including advising students for selecting their course units match with the degree requirements, preparation of lecture time tables, exam timetables etc. • Honorary Director of the Graduate Foundation of the University of Colombo from 1996 to 1998. • Committee Member, Sri Lanka Association of Geographers (SLAG) from November 1995 to 1997. • Temporary Student Counsellor, University of Colombo, Sri Lanka from 1990 to 1997. |
Memberships in Professional Associations
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