![[Member-Image]](../assets/img/staff/5.webp)
Resident Geologist Water Resources Board Kurunegala- 
Palaeobotanical and sedimentological studies on Indian and Sri Lankan basins with special reference to Gondwana flora, their palaeoenvironmental and palaeogeographical implications
Life Member, Sri Lankan Association for the Advancement of Science (SLAAS)
Fulbright Award 1986-88
IAEA Fellowship 2001-02
Presidential Awards for Scientific Research 2008, 2009 & 2014Journal of Asian Earth Sciences,
Weerakoon, W.A.P., Aggarwal, N., Jha, N., Jayasena, H.A.H. Joshi, H., Perera, K.V.G.S., Ratnayake, N. and Yakandawela, D. (2019). Reconstruction of the Upper Gondwana palaeoclimates based on palynostratigraphy, palynofacies and sedimentology of the Jurassic sequences in the Tabbowa Basin, Sri Lanka. . Journal of Asian Earth Sciences,, 172: 264-278.
Applied Geochemistry
Chandrajith, R., Jayasena, H.A.H., Geldern, R.V., Barth, J.A.C., (2015). Assessment of land subsidence mechanisms triggered by dolomitic marble dissolution from hydrogeochemistry and stable isotopes of spring waters,. Applied Geochemistry, 58: 97-105.
DOI: https://dx.doi.org/10.1016/j.apgeochem.2015.03.020
Ceylon Journal of Science (Physical Sciences)
.B. Kulasekera, (2015). Sustainable rainwater harvesting system for rural community: A case study from Deduru Oya basin in Sri Lanka . Ceylon Journal of Science (Physical Sciences), 19: 01 – 15..
Geology
Kelly L. Jackson, Gregor P. Eberli, Falk Amelung, Melany A. McFadden, Andrew L. Moore, Eugene C. Rankey and H. A. H. Jayasena, (2014). Holocene Indian Ocean Tsunami History in Sri Lanka. Geology, 42(10): 859-862.
BC Mine reclamation symposium BC September 2013
Clark, J.C. and HemachandraJayasena, H.A., (2013). Using the BC "guidance for assessing the design, size and operation of sedimentation ponds used in mining" to comply with federal/provincial sediment control legislation. BC Mine reclamation symposium BC September 2013, .
Sharing Innovative Experiences Ed by UNDP
Jayasena, H.A.H., (2009). Stabilizing Slopes: Sri Lanka, Examples of Natural Disaster mitigation in Small Island Developing States, compiled by the UNDP Special Unit, New York, USA. In:. Sharing Innovative Experiences Ed by UNDP, Book Chapter 12: 177-188.
Environmental Geology
Jayasena, H.A.H,Chandrajith, R. and Dissanayake, C.B., (2008). Hydrochemistry in the groundwater flow system of a crystalline terrain: a study from Kurunegala district, Sri Lanka. Environmental Geology, 55(4): 723-730.
DOI: https://dx.doi.org/10.1007/s00254-007-1024-z
Paddy and Water Environment
RohanaChandrajith, K. Mahatantila, H.A.H. Jayasena and H.J. Tobschall (2008). Geochemical characteristics of sediments from a tank ecosystem in Sri Lanka: a case study from Malagane Tank,. Paddy and Water Environment, 6(4): 363-371.
DOI: https://dx.doi.org/10.1007/s10333-008-0133-y
Hydrological Process
Jayasena, H.A.H., Chandrajith, R. and Dissanayake, C.B., (2008). Spatial variation of stable isotope composition in precipitation in a tropical environment- a case study from the DeduruOya river basin, Sri Lanka. Hydrological Process, 22: 4565-4570.
DOI: https://dx.doi.org/10.1002/hyp.7060
Water and Environment Journal
Mahatantila, K, Chandrajith, R.L.R., Jayasena, H.A.H. and Ranawana, K.B., (2008). Spatial and temporal changes of hydrogeochemistry in ancient Tank Cascade Systems (TCS) in Sri Lanka: Evidence for a constructed wetland. Water and Environment Journal, 22(1): 17-24.
World Water Council, France,
H.A.H. Jayasena and John S. Selker, (2004). Thousand years of hydraulic civilization - Some sociotechnical aspects of water management, Proceedings workshop on "Water and Politics - Understanding the role of Politics in Water Management",. World Water Council, France,, : 225-236.
Proc. of the IGC 2002 on Sustainable development and management of groundwater resources in semi arid region with special reference to Hard rocks, Dindigul, Tamil Nadu, (Eds. M. Thangarajan, S.N. Rai, V.S. Singh) Tyler and Francis Ltd., London
Jayasena, H.A.H.andAbeyrathne, P.T., (2002). Application of geostatistics to the hydrochemical data from the hard rock aquifers in Sri Lanka - A case study. In:. Proc. of the IGC 2002 on Sustainable development and management of groundwater resources in semi arid region with special reference to Hard rocks, Dindigul, Tamil Nadu, (Eds. M. Thangarajan, S.N. Rai, V.S. Singh) Tyler and Francis Ltd., London, : 29-45.
Rev. Palaeobot. Playnol.,
Dahanayake, K., Jayasena, H.A.H., Singh, B.K., Tiwari, R.S. and Thripathi, A., (1989). A Permo - Triassic (?) plant microfossil assemblage from Sri Lanka. Rev. Palaeobot. Playnol.,, 58: 197-203.
Geothermics,
Dissanayake, C.B. and Jayasena, H.A.H., (1988). Origin of Geothermal Systems of Sri Lanka. Geothermics,, 17(4): 657-669.
AQUA
Jayasena, H.A.H., Singh, B.K. and Dissanayake, C.B., (1986). Groundwater occurrences in the hard rock terrain of Sri Lanka - A Case Study. AQUA, 4: 214-219.
Precambrian Research
Dahanayake, K. and Jayasena, H.A.H., (1983). General geology and petrology of some Precambrian rocks from the Vijayan Complex of Sri Lanka. Precambrian Research, 19: 301-315.