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PhD. Candidate in Geography
MSc. in Environmental Science and Disaster Management (Mahatma Gandhi University, Kottayam, Kerala, India)
BSc. in Physics (Kuriakose Elias (KE) College, Mannanam, Kerala, India)       

For my PhD, I will be working with Sentinel-3 imagery and try to develop regional remote sensing algorithms to define phytoplankton phenology and groups, especially harmful algae along the Strait of Georgia and Southeast Alaska.  

Research Interests:

  • Bio-optical studies of coastal waters
  • Remote sensing of phytoplankton functional types
  • Optical properties of Algal blooms
  • Developing remote sensing algorithm for coastal waters

Research Experience:

  • Junior Research Fellow in ISRO-SAC funded project entitled “Modeling bio-geochemical cycles in coastal oceans” in the Dept of Marine Biology, Microbiology and Biochemistry, School of Marine Science, CUSAT from 12-2-2014 to 12-02-2016.

  • Senior Research Fellow in ISRO-SAC funded project entitled “Modeling bio-geochemical cycles in coastal oceans “in the Dept of Marine Biology, Microbiology and Biochemistry, School of Marine Science, CUSAT from 13-2-2016 to 31-03-2018.

Conference/Poster Presentations:

  • P.S. Vishnu, S.P. Tiwari, S.S. Shaju, Mohamed Hatha, Nandini Menon, A. Mohandas. “Evaluation of Empirical and Semi Analytical Downwelling Diffuse Attenuation Coefficient Models along the Coastal Waters off Cochin”. Presented a poster at the second International Symposium ‘SAFARI 2’ on Remote Sensing for Ecosystems Analysis and Fisheries held between January 15-17 2018 at Central Marine Fisheries Research Institute (CMFRI), Kerala, India.

  • Vishnu P S., Shaju S S., Nashad M., Ajith Joseph C., Mini Raman., Nandini Menon., Mohamed Hatha., Mohandas A. Seasonal variability in Bio-optical properties along the Coastal Waters off Cochin. Presented a poster at the “International Ocean Color Science (IOCS) 2017, Meeting”, in Lisbon, Portugal, from 15-18th May 2017.

  • Vishnu P S., Shaju S S., Nashad M., Nandini Menon., Mohamed Hatha., Ajith Joseph c., Mini Raman. Study of light absorption coefficient of phytoplankton and other optically active components in the coastal waters off Cochin. Presented a poster at the International conference “Towards a sustainable Blue Economy” in Kochi from 4-6 February 2016.

  • Chithra Chandran., Nashad M., Vishnu P S., Nandini Menon. Bloom of Fragilariopsis sp. in the coastal waters off Cochin, Kerala, South west coast of India – Presented a poster at the World Ocean Science Congress, Kochi from 5-8th February 2015.

Publications:

  • P.S. Vishnu, S.S. Shaju, S.P. Tiwari, Nandini Menon, M. Nashad, C. Ajith Joseph, Mini Raman, Mohamed Hatha, M.P. Prabhakaran, A. Mohandas. 2017. Seasonal Variability in Bio-optical Properties along the Coastal Waters off Cochin. International Journal of Applied Earth Observation and Geoinformation 66. 184-195 https://doi.org/10.1016/j.jag.2017.12.002.

  • Shaju S.S, Sreekutty C. Prasad, Vishnu P.S., Amir Kumar Samal, Nandini Menon, Nashad M, K.A Mathew, A.K Abdul Nazar and Grinson George (2017). “Variability in phytoplankton specific absorption coefficients and remote sensing reflectance at a cage mariculture site during bloom’’ is under revision in the journal of ‘’Regional Studies in Marine Sciences’.

  • Soumya Krishnankutty, Ajith Joseph, C., Vincent, P.D., Jabir, T., Vishnu, P.S., Saramma, A.V. and A.A. Mohamed Hatha (2017). ‘’Hydrography, Seasonal Diversity, Distribution and Abundance of Phytoplankton in Coastal Waters off Cochin - Southeastern Arabian Sea’’ is accepted in ‘’Indian Journal of Geo-Marine Science’’.