• Senior Scientist in M. S. Swaminathan Research Foundation, Chennai (Sep 1994 – Jul 1999 and Oct 2001 – June 2009).
• Junior Project Scientist in Institute of Ocean Management, Anna University, Chennai (Jul 1999 – Aug 2000).
• Associate Consultant (GIS) in Pentasoft Technologies, Chennai (Aug 2000 – Oct 2001).
• Junior Project Associate in Institute of Remote sensing, Anna University, Chennai (Jun 1994 – Sep 1994).
• Visiting Faculty in Centre for Water Resources, Anna University Jan - May 2009.

• Coastal Zone Studies of Critical Habitat of Tamil Nadu (Mangroves) - Funded by SAC - MoEF
• Suitability mapping of Coastal Bioshields - Funded by International Development Research Centre (IDRC)
• Real Time DSS for Cyclone Hazard Mitigation Project – AP Cyclone Hazard Mitigation Project - Funded by World Bank
• Developing Decision Support System of Pichavaram – Critical Habitat Information System (CHIS) - Funded by MoES (DOD)
• Bio-industrialised watershed Programme in Semi-arid, coastal and hilly ecosystems of India funded by TATA Trust
• Food Insecurity Atlases of India Funded by Word Food Programme
• Mapping and monitoring mangrove wetlands of Tamil Nadu, Andhra Pradesh and Orissa – Coastal Wetlands: Mangrove Conservation and Management project - Funded by India Canada Environment Facility (ICEF)

• Cambodia – 2005, GIS applications in the documenting the “Food Security Atlas of Cambodia”, MSSRF – Sponsored by World Food Programme, Cambodia
• Sri Lanka – 2007, Application of Remote sensing, GIS and GPS in planning and monitoring the natural resource management activities as a part of the project “Strengthening the resilience of Tsunami affected Communities” by IDRC CIDA, Sarvodaya, Colombo.

Referred Journals

1. Jayanthi, M., L. Gnanappazham and S. Ramachandran, 2007, Assessment of Impact of Aquaculture on Mangrove Environments in the South East Coast of India Using Remote Sensing and Geographical Information System (GIS), Asian Fisheries Science, 20:325-338
2. R. Ramasubramanian, L. Gnanappazham, T. Ravishankar and M. Navamuniyammal, 2006, Mangroves of Godavari – analysis through remote sensing approach, Wetlands Ecology and Management, 14: 29–37
3. Selvam V, K. K. Ravichandran, L. Gnanappazham and M. Navamuniyammal, 2003, Assessment of community-based restoration of Pichavaram mangrove wetland using remote sensing data, Current Science, 85:6, 794 – 498
4. Krishnamoorthy, R. L. Gnanappazham and M. Navamuniammal (2000), Utilisation of remote sensing and GIS tools in strengthening the management of mangrove wetlands and biosphere reserve – Case study of east coast mangroves and Gulf of Mannar, MIT Pune Journal
5. Krishnamoorthy, R. L. Gnanappazham and V. Selvam (1997) Application of GIS for coastal wetland planning and management, Informaiton Studies Journal, 3: 109 – 124.

Conference and proceedings

1. Gnanappazham. L. and V. Selvam, 2008. “Multi-temporal remote sensing data in monitoring the mangroves of Pichavaram” in the National Seminar on Hyperspectral Remote sensing data on Natural Resource Management, Annamalai University, 13-15 February, 2008
2. Gnanappazham. L. 2007. Comparison of IKONOS multispectral data and merged data of Cartosat and IRS LISS III for mapping mangrove vegetation of Pichavaram wetland, east coast of South India. International Symposium of Remote Sensing of Environment. Session PS 3.6. (Poster Presentation of Marine Ecosystem on June 26. 2007), Costa Rica
3. Gnanappazham, L., M. Navamuniyammal, P. Thamizholi, R. Rengalakshmi, Vijay R Subbiah and R. Srinivasan, 2005, Farm Information System for managing and planning agricultural practices, National Seminar on GIS for Rural Development, Hyderabad, November 2005
4. Gnanappazham, L., M. Navamuniyammal and V. Selvam, 2005, “Mapping mangrove species diversity of Pichavaram mangroves, India using hyper spectral remote sensing data”, 31^st International Symposium on Remote Sensing, June 20 – 24, 2005, Peters Burg.
5. Sridhar, P.N., B.R.Subramanian, V.Sampath, S.Sundaramoorthy, L.Gnanapazham and T.Usha, (2002) "Identification of problem areas in Pichavaram mangroves, Tamilnadu, India, using LISS III and Thematic Mapper data in GIS environment". In: Procs. of Intnl. Symp. On Resource and Environmental Monitoring, Hyderabad, India, Dec. 2002.
6. Gnanappazham, L., M. Navamuniammal, R. Rengalakshmi, K. Balalsubramaniam, D. Dhanapal, E. D. Israel Oliver King, S. Krishnakumar, 2002, “Application of Multispectral Remote Sensing data and GPS for area Estimation of Minor Millet - Kolli Hills, Tamil Nadu”, Asian GPS Conference, New Delhi, 2002.
7. Vishwanath GK, L. Gnanappazham and Lou Verhage, 2001, “Decision Support System for Real Time System on Cyclone Hazard Management for Andhra Pradesh”, Workshop on Natural Hazards Management, University of Madras
8. Gnanappazham, L., S. Ramachandran and S. Krishnamoorthy (2000), “Application of Remote Sensing and GIS to mangrove wetland management: case study in Coringa Mangroves”, V PORSEC, December, 2000.
9. Krishnamoorthy, R., L. Gnanappazham and M. Navamuiammal (1998) “Indian remote sensing data application potential in coastal studies”, Proces. 27th Inst. Symp. On Remote Sensing of Environment, Tromso, Norway, June 1998, pp. 119-122.
10. Gnanappazham, L., R. Krishnamoorthy, S. Rajagopal and L. R. A Narayan (1997) “ Remote sensing and GIS applications in hunger free area programme and coastal wetlands studies”, Process. 18th Asian Remote Sensing Conference, Kula Lumpur, October 1997, pp.1-1 to 1-6.
11. Gnanappazham, L. R. Krishnamoorthy, S. Rajagopal and L.R.A Narayan (1997) “GIS for Socio-Economic Studies and Coastal Wetlands Management"” Proces. of National Seminar on Applications of GIS for Solving Environmental Problems Organised by Canada-India Institutional Cooperative Project and TTTI, Madras, August 1997. pp 69-76.
12. Gnanappazham, L., M. Navamuniammal and Dr. L. R. A. Narayan (1997), “Application of Remote Sensing and GIS in Management of Coastal Area”, XVIII International Congress of INCA.

Books

1. V.Selvam, L. Gnanappazham, M. Navamuniammal, K. K. Ravichandran, V. M Karunagaran, Atlas of Mangrove Wetlands of India, Part – I Tamil Nadu, 2002, M. S. Swaminathan Research Foundation.
2. T. Ravishankar, L. Gnanappazham, R. Ramasubramaniam, D. Sridhar M. Navamuniyammal and V. Selvam, Atlas of Mangrove Wetlands of India, Part – II Andhra Pradesh, 2004, M. S. Swaminathan Research Foundation
3. T. Ravishankar, M. Navamuniyammal, L. Gnanappazham, Satyasree Nayak, Gopal Chandra Mahabatra and V. Selvam, Atlas of Mangrove Wetlands of India, Part – III Orissa, 2004, M. S. Swaminathan Research Foundation.
4. Swarna S Vepa, G. Anuradha, Deepa Varma, L. Gnanappazham and Krithika, 2006, Food Security Atlas of Cambodia, World Food Programme – Cambodia, FAO.