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  • 11:49 PM, Monday, 20 Sep 2021

Department of Earth and Space Sciences
Gnanappazham L., Ph.D.
Associate Professor

  • Ph.D. Remote Sensing and GIS in Coastal Biodiversity (M. S. Swaminathan Research Foundation, University of Madras, Chennai)
  • M.Tech. Remote Sensing (College of Engineering, Anna University, Chennai)
  • B.E. Agricultural Engineering (College of Agricultural Engineering, Tamil Nadu Agricultural University, Coimbatore)

Course Offered
  • Fundamentals of Remote Sensing
  • Geographic Information System
  • Photogrammetry
  • Spatial Data Analysis and Modeling
  • Advanced GIS

    • Senior Scientist in M. S. Swaminathan Research Foundation, Chennai (Sep 1994 Jul 1999 and Oct 2001 June 2009).
    • Visiting Faculty in Centre for Water Resources, Anna University Jan – May 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).

Research Work / Area

Remote sensing and GIS tools for  

    • Agriculture and plantation crops 
    • Studies on Coastal Zone and Mangroves 
    • Hydrology and Coastal Hydrodynamics 
    • Urban Modeling

Research Projects

    • Biodiversity characterisation of mangroves of Bhitarkanika, Orissa, India using hyperspectral remote sensing (2012 - 2015)
    • Geological and Spectral Studiesof TerrestrialAnalogueRocks: Implicationsfor Mars Exploration: one of two PIs (2015 – 2017)
    • Monitoring the health of the mangroves of Maharashtra using near real time satellite data ( 2018 - 2020)

Research Scholars

    • Mr. Arun K Prasad, - Completed in 2016
    • Ms. Aarthi Aishwarya,  - Pursuing
    • Mr. Manjunath, Tamil Nadu Agricultural University - Pursuing (Co-supervision)

Funded Project
    • 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)
Selected publications
    1. Kumar A P, Bharath B D, Gnanappazham L, Rama RaoN, Ramasubramanian R, Selvam V. Multiple classification system for classification of mangroves at species level using multispectral image data, International Conference “ECSA 56 Coastal systems in transition: From a 'natural' to an 'anthropogenically-modified' state“ 4- 7 September 2016, Bremen, Germany.
    2. Prasad, Kumar Arun, Lakshmanan Gnanappazham. 2015. “Multiple statistical approaches for the discrimination of mangrove species of Rhizophoracea using transformed field and laboratory hyperspectral data”. Geocarto International. doi:10.1080/10106049.2015. 1094521. Published online: 20 Oct 2015
    3. Gnanappazham. L. and Selvam V., 2014. Influence of Fresh water and Tidal water in the distribution of Mangroves of Pichavaram, South India, Ocean and Coastal Management, 102. 131 - 138.
    4. Arun Prasad, L. Gnanappazham, V. Selvam, R. Ramasubramanian, Chandrasekar Kar, 2014. Developing a spectral library of mangrove species of Indian East coast using hyperspectral field spectroscopy, Geocarto International, DOI: 10.1080/10106049.2014.985743.
    5. Arun Prasad and Gnanappazham, L. Derivative spectra for mangrove species discrimination - International Society of Photogrammetry and Remote Sensing, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume II-8, 2014 ISPRS Technical Commission VIII Symposium, December 9 – 12, 2014
    6. Aarthy Aishwarya and Gnanappazham, L. A review on accuracy and uncertainty of spatial data and analyses with special reference to urban and hydrological modelling, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume II-8, 2014 ISPRS Technical Commission VIII Symposium, December 9 – 12, 2014.
    7. Ajai, Anjali Bahuguna, H. B. Chauhan, Kakoli Sen Sarma, Somenath Bhattacharya, Subhash Ashutosh, C. N. Pandey, T. Thangaradjou , L. Gnanppazham, V. Selvam and Shailesh R. Nayak. 2012. Mangrove Inventory of India at Community Level, Natl. Acad. Sci. Lett., DOI 10.1007/s40009-012-0087-x
    8. Gnanappazham. L. and Selvam V. 2011. The dynamics in the distribution of mangrove forests in Pichavaram, South India – perception by user community and remote sensing. Geocarto International, 26:6, 475 – 490.
    9. 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
    10. 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 – 49
    11. Sridhar, P.N., Subramanian, B.R., Sampath, V., Sundaramoorthy, S., Gnanappazham, L. and Usha, T., 2003. Identification Of Problem Areas In Pichavaram Mangroves, Tamilnadu, India, Using LISS III And Thematic Mapper Data In GIS Environment. International Archives Of Photogrammetry Remote Sensing And Spatial Information Sciences, 34(7/A), pp.424-429.

 Books co-authored

    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.
    5. Coastal Zones of India, 2012. Space Application Centre.  Sponsored by Ministry of Environment and Forests.(Member of National Team).