H.M.I. Prasanna is a Professor in Geodesy in the Department of Surveying and Geodesy at the Faculty of Geomatics, Sabaragamuwa University of Sri Lanka. He has been the Dean of the Faculty from 2015 to 2021. He received BSc in Surveying Sciences (in 2002) from SUSL, MPhil in Geodesy (in 2008) from University of Sri Jayewardenepura and PhD in Geodesy (in 2014) at the Hong Kong Polytechnic University. His research interests cover broad areas of Geodesy with a major focus on Earth's gravity field modelling,  geoid determination, geodetic datum enhancements, GNSS and geoinformatics education.

• Member-International Association of Geodesy (IAG)
• Member-Sri Lanka Association for the Advancement of Science (SLAAS)

Earth gravity field modeling and internal structure dynamics/ Enhancements of geodetic datums/ Geoinformatics education.

Development of a Unified Vertical Reference Framework for Surveying in Sri Lanka

Research Grants      

National Science Foundation 2016 – RG/2017/EA/ &ICT/01 – Completed.

Sabaragamuwa University of Sri Lanka – Research Grant 2016 – Completed.

Sabaragamuwa University of Sri Lanka – Research Grant 2006 – Completed.

Awards

2010           Studentship, Department of Land Surveying and Geoinformatics, The Hong Kong Polytechnic University

2002           Gold Medal – George Herat Memorial Gold Medal for the best overall performance in Geodesy, Faculty of Geomatics, Sabaragamuwa University of Sri                       Lanka.

Completed - 40          

Current - 08   

Completed:     MSc -04

                        University of Sri Jayewardenepura, Sri Lanka

                        Sabaragamuwa University of Sri Lanka

Current:          MSc -04          Sabaragamuwa University of Sri Lanka

           MPhil – 01      Kotalawala Defence University

• Prasanna, H. M. I.: Faculty of Geomatics as the focal point in Geomatics education in Sri Lanka, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5/W1-2023, 51–57, https://doi.org/10.5194/isprs-annals-X-5-W1-2023-51-2023, 2023. (CPCI)
• Prasanna, H.M.I., Gunathilaka M.D.E.K. and İz, H. B. (2023). Sea level variability at Colombo, Sri Lanka inferred from the conflation of satellite altimetry and tide gauge measurements. J.Natn.Sci.Foundation Sri Lanka 2023 51 (2): 205 – 214, DOI: http://dx.doi.org/10.4038/jnsfsr.v51i2.10713 . (SCI)
• De Silva, W.J.P. and Prasanna, H.M.I. (2022). Comparison of different global DTMs and GGMs over Sri Lanka. Journal of Applied Geodesy, DOI: https://doi.org/10.1515/jag-2022-0026 .(ESCI)
• P. I. A. Weerasinghe P.I.A and Prasanna H.M.I. (2021). Temperature and humidity effects on CG-6 gravity observations. Journal of Applied Geodesy, https://doi.org/10.1515/jag-2020-0047 .(ESCI)

• Prasanna H.M.I, Gunathilaka M.D.E.K. & Welikann D.R. (2021). Development of a unified vertical reference framework for Land and Hydrographic surveying in Sri Lanka, Marine Geodesy, DOI: 10.1080/01490419.2021.1902889 . (SCI)

• Prasanna, H. M. I., Chen, W., & Gómez‐Ortiz, D (2014). Geophysical Investigation of the Structure of the Lithosphere beneath Sri Lanka by using Surface and Internal Load Variations. Pure and Applied Geophysics, 1-12. DOI: 10.1007/s00024-013-0767-6 . (ESCI)

• Prasanna, H. M. I., Chen, W., &İz, H. B. (2013). High resolution local Moho determination using gravity inversion: a case study in Sri Lanka. Journal of Asian Earth Sciences, 74, 62-70. DOI: 10.1016/j.jseaes.2013.06.005 . (SCI)

• Prasanna, H. M. I., & Chen, W. (2012). Geoid modeling using a high resolution geopotential model and terrain data: A case study in Canadian Rockies. Journal of Applied Geodesy, 6 (2), 89-101. DOI: 10.1515/jag-2011-0002 . (ESCI)

• Prasanna, H. M. I., &Tantrigoda, D. A. (2009). Determination of the geoid of central highlands in Sri Lanka. Journal of Applied Geodesy, 3(2), 121-128. 
• DOI: 10.1515/JAG.2009.012 . (ESCI)

• Prasanna, H. M. I. (2022). Validation of high-resolution global geopotential models over Sri Lanka using ground gravity & GPS-levelling data. Journal of the Sri Lanka Association for the Advancement of Science, 4(1), 12-21, DOI: 10.5281/zenodo.7498106
• Prasad, K.V.C. and Prasanna, H.M.I. (2022). Determination of 3D Transformation Parameters for the Sri Lankan Geodetic Reference Network Using Ordinary and Total Least Squares. Journal of Geospatial Surveying, 2(2), pp.11–21. DOI: http://doi.org/10.4038/jgs.v2i2.39

• Prasanna, H.M.I. (2022). Robust Method of Outlier Detection of GPS-Levelling Data in Sri Lanka. Journal of Applied Mathematics and Statistical Analysis, 3(2), 1–13. https://doi.org/10.5281/zenodo.6830928

• Prasanna, H.M.I. and Gunathilaka, M.D.E.K. (2022). Detection of GPS-levelling datum variation using heterogeneous data: A case study in Sri Lanka. Journal of Geospatial Surveying, 2(1), pp.1–6. DOI: http://doi.org/10.4038/jgs.v2i1.34

• Prasanna H.M.I. (2021). Determination of the date of the First Point of Aries held fixed using a combined method of Astronomy and Astrology, Sabaragamuwa University Journal.

• Iresha, M.P.G, & Prasanna, H.M.I (2021). Impact of Drift, Tilt and Tilt Susceptibility on CG-6 Gravity Observations. IRE Journals, 5 (6).

• Manuranga K.P., Dampegama K.P., Wickramathilaka N.V., Lakmal A.H. and Prasanna H.M.I. (2021). An approach for real world as-built survey with the 3D terrestrial laser scanner, 8th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS – 2021)

• Prasanna, H.M.I., Gunathilaka, M.D.E.K., & Welikanna, D.R. (2019). Variability of the Sounding Datums Around Sri Lankan Coastline. FIG Working Week 2019: Geospatial information for a smarter life and environmental resilience, Hanoi, Vietnam, April 22–26, 2019.

• Gunathilaka, M.D.E.K., Prasanna, H.M.I., Halvitigala, D., & Wilkinson, S. (2019). Shaping the Strategic Direction of the Surveying Profession in Sri Lanka. FIG Working Week 2019: Geospatial information for a smarter life and environmental resilience, Hanoi, Vietnam, April 22–26, 2019.

• Weerasooriya W.M.N.B. and Prasanna H.M.I. (2022). Comparison of different height systems over a local area in Sri Lanka. 78th Sri Lanka Association for the Advancement of Science (SLAAS) Annual Sessions, 11^th-16^th December 2022, Colombo
• Manuranga K.P., Prasanna H.M.I., Lakmal A.H. (2022). Review on the Height Datum Unification in Sri Lanka.15th International Research Conference 2022 General Sir John Kotelawala Defence University (KDUIRC-2022), 29^th -30^th September 2022, Ratmalana, Sri Lanka.
• Prasanna H.M.I. & Gunathilaka M.D.E.K (2021). Detection of GPS-levelling datum variation using heterogeneous data: a case study in Sri Lanka. 8th International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL-2021), 1^st-3^rd December 2021, Belihuloya, Sri Lanka.
• Prasanna H.M.I. (2021). Assessment of Mean Sea Level variation from tide gauge and altimetry data: a case study in Colombo, Sri Lanka. Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka (RESCON 2021), 29th-31st October 2021.
• Prasanna H.M.I. (2021). Validation of high resolution GGMs over Sri Lanka using ground gravity & GPS-levelling data. 77th Sri Lanka Association for the Advancement of Science (SLAAS) Annual Sessions, 6th-11th December 2021, Colombo.
• Manuranga K.P., Prasanna H.M.I., Lakmal A.H. (2021). Automatic Symbol Generating From AutoCAD Civil3D. 8th International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL-2021), 1^st-3^rd December 2021, Belihuloya, Sri Lanka.
• Thunendra P., Welikann D.R., Prasanna H.M.I.(2021). A geometrical perspective of the elliptical movement of the planets a consequence of two circular forces directed towards the foci. 8th International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL-2021), 1^st-3^rd December 2021, Belihuloya, Sri Lanka.
• Wickramasinghe W.A.D.M , Prasanna H.M.I , Ranaweera L.V. (2021). Field occurrence of the lithotectonic contact between the highland complex and the Vijayan complex in the Samanalawewa area, Balangoda: implications from gravity data, 37th Technical Sessions, Geological Society of Sri Lanka, 25th February 2021, Colombo.

• Kankanamge K.K.P.M., Prasanna H.M.I., and Ranaweera L.V. (2019). Bouguer gravity field over Bandarawela, its correlation with geology. 7th International Symposium, Sabaragamuwa University of Sri Lanka (ICSUSL2019).

• Abayasinghe E.R.M.L.N., Prasanna H.M.I. (2019). Finding geophysical evidence to identify lithospheric boundaries of Sri Lanka. 7th International Symposium, Sabaragamuwa University of Sri Lanka (ICSUSL2019).

• Thunendran P., Welikanna D.R. , Prasanna H.M.I. and Kannangara K.K.D.W.S. (2019). Deducing topography using irregularly spaced, finite elevation data, for Jaffna peninsula. 7th International Symposium, Sabaragamuwa University of Sri Lanka (ICSUSL2019).

• Dissanayake, M.R.M.A.T.K., Udayakumara, E.P.N., Prasanna, H.M.I., & Ranaweera, L.V. (2018). Selected soil physical properties in a hazardous slope adjacent to Aranayake deadly landslide: Investigation towards mitigation. Sri Lanka Association for the Advancement of Science 74^th Annual Session, 2-8 December 2018, Colombo.

• P.Thunendran, Welikanna D.R. & Prasanna, H.M.I. (2018). MRF Super Resolution Approach for Mapping Gravity from Grace Satellite Data. 8th Annual Research Session (ARS), Sabaragamuwa University of Sri Lanka,13th December 2018 (Best Poster award)

• Prasanna, H.M.I. & Chen, W. (2017). Geodetic network improvements using high resolution geopotential models: a case study in Sri Lanka. International Symposium on GNSS 2017 (ISGNSS 2017), Hong Kong, China, 10-13 December 2017.

• Wenadabona, Y.J., Herath, H.M.U.C.B., & Prasanna, H.M.I. (2017). Investigation of orthometric height correction on sprit-levelling. 7^th Annual Rsearch Session, Sabaragamuwa University of Sri Lanka,13^th December 2017.

• Sandamali, K.U.J, Welikanna D.R. & Prasanna, H.M.I. (2017). Stuying the Dynamics of Wilpattu National Park, Sri Lanka using Satellite Remote Sensing. 7^th Annual Rsearch Session, Sabaragamuwa University of Sri Lanka,13^th December 2017.

• Arampola, A.M.N.S., Welikanna, D.R., Prasanna, H.M.I. & Sammani, M. (2017). Flood area extraction using Synthetic Aperture Radar in the Kelani River Basin. 7^th Annual Rsearch Session, Sabaragamuwa University of Sri Lanka,13^th December 2017.

• Shanke, D.M.M., Welikanna, D.R., Prasanna, H.M.I. (2017). Wind pattern analysis and mapping using irregularly distributed measurement data by means of geostatistical methods. 38^th Asian Conference on Remote Sensing (ACRS 2017), New Delhi, India, 23-27 October 2017.

• Arampola, A.M.N.S., Welikanna, D.R., Prasanna, H.M.I. & Sammani, M. (2017). Mapping May 2016 Colombo Floods in the Kelani River Basin Sri Lanka using Sentinel-1 single polarized SAR data. 38^th Asian Conference on Remote Sensing (ACRS 2017), New Delhi, India, 23-27 October 2017.

• Wijesiriwardhana H.G.M.P., Rathnayake R.M.S.P., Prasanna H.M.I., &Welikanna D.R. (2016). Calculation of Deflection of the vertical components: Analysing the GPS, Levelling Measurements and their distribution Geometry. 37th  Asian Conference on Remote Sensing (ACRS 2016), Colombo, Sri Lanka, 17-21 October 2016.

• Prasanna, H. M. I. (2009). A Possible way of determining the local contribution of the topographical masses to the geoid of Sri Lanka. 12^th international conference on Humans and Computers (HC-2009), Shizuoka University, Japan, 9-10 December 2009.

• Prasanna, H. M. I., &Tantrigoda, D. A. (2007). Determination of the gravity potential due totopographical masses in Sri Lanka. 2^nd International Symposium, Sabaragamuwa University of Sri Lanka.

• Prasanna, H. M. I., &Tantrigoda, D. A. (2007). Determination of the geoid of Sri Lanka: APreliminary study. Commonwealth Association of Surveying and Land Economy (CASLE), international conference, Colombo, Sri Lanka, 22 June 2007.

• Kumara, E.P.N.U., Wijeratne, A.W., Prasanna, H. M. I. (2003). Estimation of Global Warming Damage Cost due to the Forest Fires in the Imbulpe Divisional Secretariat Division, 9^th Annual Forestry and Environment Symposium, 2003.

Awarded as the best researcher 2021 of the Faculty of Geomatics in recognition of the research excellence

Awarded the Gold Medal 2002 for the best student of overall performance in Geodesy, Faculty of Geomatics, Sabaragamuwa University of Sri Lanka.

• Member of the Editorial Board – Sabaragamuwa University Journal & News letter (2015-2021)

• Member of the Editorial Board – Journal of Geospatial Surveying published by the Faculty of Geomatics (To date)

Prasanna, H.M.I. (2022). Development of Global Geopotential models (GGMs) and their suitability in regional/ local geoid modelling. Survey Journal, Issue 88, August 2022.

Prasanna, H.M.I. (2022). Local Moho Estimation using Gravity Inversion. Coordinates, Vol (XVIII), Issue 5, May 2022.

Prasanna, H.M.I. (2021). Geopotential models and their application in local geoid modelling. Coordinates, Vol (XVII), Issue 6, June 2021.

• Member of the Programme review committee of undergraduate programmes, University Grants Commission
• Member of the Programme review committee of External degree programmes, University Grants Commission
• Served as the Dean of the Faculty of Geomatics, Sabaragamuwa University of Sri Lanka (SUSL) from March 2015 to March 2021.

• Served as a member of University Council and Senate, SUSL from March 2015 to March 2021.

• Served as a member of Advisory Committee of International Conference, SUSL, 2015, 2017 and 2019.

• Served as Acting Dean, Faculty of Geomatics from 9^th February 2015 to 18^th February 2015; and 9^th March 2015 until 25^th March 2015.

• Served as the Head of the Department of Surveying and Geodesy, Faculty of Geomatics from 01^st April 2014 until 25^th March 2015.

• Served as Acting Head of the Department of Surveying and Geodesy, Faculty of Geomatics from 01^st January 2009 until 31^st  July 2009.

Sabaragamuwa University of Sri Lanka

University of Sri Jayewardenepura

Kotalawala Defence University

Courses Taught: Land Surveying, Geodesy, GNSS, Geodetic Astronomy

Sabaragamuwa University of Sri Lanka – MSc in Surveying Sciences

University of Sri Jayewardenepura – MSc in Forestry and Environment

Courses Taught: Geometric Reference System and Map Projections, Physical Geodesy, GNSS for Surveyors, Land Surveying