National Centre for Earth Science Studies

Education:

Professional career:

Training:

• Short course on reconstruction of the Asian monsoon system: New approaches and techniques,17-30 October, 2016, Indian Institute of Technology, Kanpur.
• International workshop on monitoring of river health using diatoms held during 17-19 February, 2010 at periyar university, salem, Tamil Nadu, India
• Refresher course on Marine geology and Marine Geophysics held during 22 October to 2 November, 2007 at National Institute of Oceanography, Goa

Research Interest:

1. Estuarine and coastal sedimentary processes.
2. Major and minor elements geochemistry of sediments.
3. Source and fate of organic matter in marine environments.
4. Mudbank formations and dissemination.
5. Past climate changes deciphers by paleo-proxies

Achievements & Awards:

1. DST-Start up grant for young scientist, 2015
2. CSIR-Senior research fellowship, 2012
3. National Eligibility Test (CSIR-UGC NET), 2010
4. DST-Inspire Fellowship, 2009
5. First rank in M. Sc Marine Geology, CUSAT, 2007

Publications:

1. Srinivas, R., Shynu, R., Sreeraj, M.K., Ramachandran, K.K., 2017. Trace metal pollution assessment in the surface sediments of nearshore area, off Calicut, southwest coast of India. Marine pollution Bulletin.
2. Shynu, R., Rao, V.P., Samisha, S. V., Vethamony, P., Naqvi, S.W. A., Kessarkar, P.M., Babu, M. T., Dineshkumar, P. K. 2017 Suspended matter and fluid muds off Alleppey, southwest coast of India. Estuarine, Coastal and Shelf Science, 185, 31-43
3. Suja, S., Kessarkar, P. M., Shynu, R., Rao, V.P.,2016 Dynamics of turbidity maximum in Mandovi and Zuari estuaries, southwest coast of India. Current Science, 110 (7), 1165-1168
4. Rao, V. P., Shynu, R., Singh, S. K., Naqvi, S.W.A., Kessarkar, P. M., 2015. Mineralogy and Sr-Nd isotopes of SPM and sediment from the Mandovi and Zuari estuaries: Influence of weathering and anthropogenic contribution. Estuarine, Coastal and Shelf Science, 156, 103-115
5. Shynu. R., Rao, V. P., Sarma, V.V.S.S., Kessarkar, P. M., Manimurali, R., 2015. Sources and fate of organic matter in suspended and bottom sediments of the Mandovi and Zuari river estuaries, western India. Current Science, 108, 226-238.
6. Shynu, R., Rao, V. P., Parthiban, G., Balakrishnan, S., Narvekar, T., Kessarkar, P. M, 2013. REE in suspended particulate matter and sediment of the Zuari estuary and adjacent shelf, western India: Influence of mining and estuarine turbidity. Marine Geology, 346, 326-342.
7. Kessarkar, P.M., Shynu, R., Rao, V. P., Chong, F., Narvekar, T., Zhang, J, 2013. Geochemistry of the suspended sediment in the estuaries of the Mandovi and Zuari rivers, central west coast of India. Environmental Monitoring and Assessment, 185, 4461-4480.
8. Shynu, R., Rao, V. P., Kessarkar, P. M., Rao, T. G, 2012. Temporal and spatial variability of trace metals in suspended matter of the Mandovi estuary, central west coast of India. Environmental Earth Sciences, 65, 725-739.
9. Shynu, R., Rao, V. P., Kessarkar, P. M., Rao, T. G, 2011. Rare earth elements in suspended and bottom sediments of the Mandovi estuary, central west coast of India: Influence of mining. Estuarine, Coastal and Shelf Science, 94, 355-368.
10. Rao, V.P., Shynu, R., Kessarkar, P. M., Sundar, D., Michael, G. S., Narvekar, T., Blossom, V., Mehra, P, 2011. Suspended sediment dynamics on a seasonal scale in the Mandovi and Zuari estuaries, central west coast of India. Estuarine, Coastal and Shelf Science, 91, 78-86.
11. Kessarkar, P.M., Rao, V. P., Shynu, R., Mehra, P., Viegas, B. E, 2010. The Nature and Distribution of Particulate Matter in the Mandovi Estuary, Central West Coast of India. Estuaries and Coasts, 33, 30-44.
12. Kessarkar, P.M., Rao, V. P., Shynu, R., Ahmad, I. M., Mehra, P., Michael, G. S., Sundar, D, 2009. Wind-driven estuarine turbidity maxima in Mandovi Estuary, central west coast of India. Journal of Earth System Science, 118, 369-377.

Education:

Professional career:

Training:

BoBBLE OCEAN TURBULENCE SCIENCE (BOTS) WORKSHOP: Training for the processing and analysis of data collected using microstructure profiler at the CAOS Indian Institute of Science (IISC), Bengaluru, India during 15-19 July 2019.

ADVANCED NUMERICAL WAVE MODELLING WITH WAVE WATCH III at IUEM Institut Universitaire Européen de la Mer Rue Dumont d’Urville 29280 Plouzané – France during 28th June to 5th July 2018.

Discovery and use of ocean data products and services OTGA-INCOIS Hyderabad 18-22 June 2018.

Waves in Shallow water Environments (WISE) annual meetings CSIR - NIO, Goa, India. March 2015.

Summer school on the dynamics of North Indian Ocean. Lectures by Prof. Julian P. McCreary, (University of Hawaii) at the CSIR- NIO Goa, India during June-July 2010.

On Climate change and coastal processes at the CSIR-NIO, Goa on 4th February 2014.

SCUBA-Open water diver license since 2014 from SSI (Scuba Schools International).

Cruise Experience (117 days):

ORV Sagar Manjusha: Deployment of ocean buoys in the Arabian Sea as NIOT representative for scientific support: 23- 31 March 2016.

ORV Sagar Manjusha: Onboard for Geo-scientific data collection for the construction of desalination plant in Lakshadweep: 08 April- 16 May 2016.

ORV Sagar Manjusha: Onboard for Geo-scientific data collection in Bay of Bengal: 09- 15 June 2016.

ORV Sagar Nidhi on-board as NIOT representative for scientific support Geo-scientific data collection 9 Oct-9 Nov 2016.

ORV Sagar Kanya (SK 362): Shelf sea Oceanographic data collection in the Arabian sea: - 7th Oct -5th Nov 2019.

Research Interest:

Physical Oceanography, Coastal processes, Waves-surface and internal waves, and shelf sea

Achievements & Awards:

Awarded the Fellowship as Project Investigator for post-doctoral studies (NPDF) by Science and Engineering Research Board (SERB), Govt. of India.

Awarded the junior research Fellowship (JRF) for doctoral studies by National Institute of Oceanography under project scheme.

Qualified the eligibility test for Lectureship-NET in Earth, Atmospheric, Ocean and Planetary Sciences (CSIR-UGC).

Publications:

1. J Glejin, VS Kumar, LS Nair (2020) Occurrence of Gravity and Infra Gravity Waves in the Nearshore Region at Ratnagiri, West Coast of India, Journal of Coastal Research 89 (sp1), 92-96
2. VS Kumar, PR Shanas, GU Dora, J Glejin, S Philip, (2017), Longshore sediment transport in the surf zone based on different formulae: a case study along the central west coast of India, Journal of Coastal Conservation, 1-13
3. J Glejin, VS Kumar, MM Amrutha, J Singh (2016), Characteristics of long-period swells measured in the near shore regions of eastern Arabian Sea, International Journal of Naval Architecture and Ocean Engineering 8(4), 312-319
4. J Glejin, VS Kumar, TR Anoop, J Joseph (2016), Directional characteristics of shallow water waves along south western Bay of Bengal, Ocean Engineering 121, 546-558
5. TR Anoop, VS Kumar, PR Shanas, J Glejin, MM Amrutha ,(2016), Indian Ocean Dipole modulated wave climate of eastern Arabian Sea, Ocean Science 12 (2), 369
6. J Glejin, VS Kumar, J Singh, (2015), Inter-annual Variations in Wave Characteristics off Ratnagiri, Northeast Arabian Sea, Aquatic Procedia 4, 25-31
7. TR Anoop, VS Kumar, PR Shanas, J Glejin, (2015) Surface Wave Climatology and Its Variability in the North Indian Ocean Based on ERA-Interim Reanalysis*, Journal of Atmospheric and Oceanic Technology 32 (7), 1372-1385
8. TR Anoop, VS Kumar, J Glejin,(2015) A study on reflection pattern of swells from the shoreline of peninsular India, Natural Hazards (3), 1863-1879
9. SP Chempalayil, VS Kumar, GU Dora, J Glejin, (2014), Near shore waves, long-shore currents and sediment transport along micro-tidal beaches, central west coast of India, International Journal of Sediment Research 29 (3), 402-413
10. J Glejin, VS Kumar, TMB Nair, J Singh, A Nherakkol,(2014), Freak waves off Ratnagiri, west coast of India, Indian Journal of Marine Sciences 43 (7), 7
11. GU Dora, VS Kumar, P Vinayaraj, CS Philip, J Glejin, Quantitative estimation of sediment erosion and accretion processes in a micro-tidal coast, International Journal of Sediment Research 29 (2), 218-231
12. GU Dora, VS. Kumar, CS Philip, J Glejin, Observation on foreshore morphodynamics of microtidal sandy beaches, Current Science 107 (8), 1324-1330
13. J Glejin, VS Kumar, TM Nair, (2013) Monsoon and cyclone induced wave climate over the near shore waters off Puduchery, south western Bay of Bengal, Ocean Engineering 72, 277-286.
14. VS Kumar, J Glejin, KK Dubhashi, TMB Nair,( 2013), Waves off Puducherry, Bay of Bengal, during cyclone THANE, Natural hazards 69 (1), 509-522,
15. J Glejin, VS Kumar, TMB Nair, J Singh, P Mehra,(2013), Observational Evidence of Summer Shamal Swells along the West Coast of India*, Journal of Atmospheric and Oceanic Technology 30 (2), 379-388
16. J Glejin, VS Kumar, TMB Nair, (2013),Influence of winds on temporally varying short and long period gravity waves in the near shore regions of the eastern Arabian Sea, Ocean Science 9, 343-353
17. GU Dora, VS Kumar, J Glejin, CS Philip, P Vinayaraj,(),Short-term observation of beach dynamics using cross-shore profiles and foreshore sediment, Ocean & Coastal Management 67, 101-112
18. J Glejin, VS Kumar, SP Chempalayil, J Singh, P Pednekar, KA Kumar, Variations in swells along eastern Arabian Sea during the summer monsoon, Open J. Mar. Sci 2, 43-50.
19. VS Kumar, J Glejin, GU Dora, SP Chempalayil, J Singh, P Pednekar, (), Variations in nearshore waves along Karnataka, west coast of India, Journal of earth system science 121 (2), 393-403
20. P Vinayaraj, J Glejin, GU Dora, CS Philip, VS Kumar, R Gowthaman, (2011), Quantitative estimation of coastal changes along selected locations of Karnataka, India: A GIS and remote sensing approach, International Journal of Geosciences 2 (04), 385

Project:

SERB-DST sponsored project on Infra-gravity waves in the north Indian Ocean and its implications on the west coast of India (2016-2018), Project Reference No.: PDF/2016/001312

Education:

Research Interests:

Development and application of in-situ petrochronological techniques to study geological processes. Investigating magmatic and extreme metamorphic processes by the application of accessory mineral geochronology, geochemistry, and phase equilibria modeling. Tracing crustal evolution and depositional history of cratons and sedimentary basins using detrital geochronology. Carbonate geochronology and biomineralization dating

Analytical Expertise:

1. Laser ablation quadrupole/multi-collector inductively coupled plasma mass spectrometry (LA-Q-ICPMS and LA-MC-ICPMS).
2. Scanning electron Microscope (SEM).
3. Working knowledge in X-ray fluoresce spectrometry (XRF) and Electron probe microanalyzer (EPMA).

Achievements & Awards:

1. DST-INSPIRE Senior Research Fellowship : 2020.
2. DST-INSPIRE Junior Research Fellowship : 2018.
3. KSCSTE Junior Research Fellowship : 2017.
4. Graduate Aptitude Test (All India Rank: 522) : 2017.
5. First Rank for Master’s degree in Geology : 2016.
6. First Rank for Bachelor’s degree in Geology : 2014.

Publications In Peer Reviewed Journals :

1. Roy, A., Sharma, R.K., Jash, D., Rao, B.P., Dev, J.A., Tomson, J.K. (2024). Imaging of Moho Topography with Conditional Generative Adversarial Network from Observed Gravity Anomalies. Journal of Asian Earth Sciences.
2. Rajak, P.K., Prabhakar, N., Banerjee, S., Dev, J. A., Bivin, G.G., Tomson, J.K. (2024): Provenance of Mesozoic sandstones in the Saurashtra Basin using heavy mineral chemistry, geochemistry, and geochronological signatures: implications for paleo-drainage pattern and paleogeographic reconstruction in western India. Marine and Petroleum Geology.
3. Tomson, J.K and Dev, J.A. (2023). Tracing the crustal evolution of Precambrian Southern Granulite Terrane in East Gondwana: New insights from zircon U-Pb/Hf geochronology. Geological Society of America Bulletin.
4. Mukherjee, S., Das, P., Ghosh, G., Bose, S., Dev, J.A., Das, K., & Tomson, J.K. (2023). Reply to Comments on "Petrography, geochemistry and detrital zircon geochronology of the Srisailam Quartzite Formation, Cuddapah Basin, India: Implications for depositional age, correlation and provenance” of Mukherjee et al. (2023). Precambrian Research.
5. Sorcar, N., Dev, J.A*., Mukherjee, S., Joshi, K.B., and Rao, B.P (2023). Metamorphic evolution of granulites from Grovnes peninsula of Larsemann Hills, East Antarctica: Constraints from phase equilibrium modeling and geochronology. Polar Science.
6. Dev, J.A., Tomson, J.K., Vijayakumar, T., & Sorcar, N. (2023). Age and petrogenesis of mafic granulites from central Madurai block, south India: Implications on regional tectonics. Geological Magazine.
7. Mukherjee, S., Das, P., Ghosh, G., Bose, S., Dev, J.A., Das, K., & Tomson, J.K. (2023). Detrital zircon geochronology and geochemistry of the Srisailam Formation, Cuddapah Basin, India: implications on sedimentation, provenance, Haedean crustal components, and stratigraphy. Precambrian Research.
8. Mondal, A.K., Bose, S., Dev, J.A., Tomson, J.K., Sorcar, N and Mukherjee, S. (2023). Petrological, geochemical, and geochronological evolution of massif type charnockite from the Eastern Ghats Province, India: implications on the regional tectonics of the Rayner-Eastern Ghats orogeny. Precambrian Research.
9. Sajna, S., Tomson, J.K., Dev, J.A., and Sorcar, N. (2023): Timing of garnet growth in granulites from southern India: Insights from zircon-monazite-garnet REE partition modeling. Journal of Geological Society of India.
10. Dev, J.A, Sorcar, N, Mukherjee, S., & Tomson, J.K. (2022b). Phase equilibrium modelling and zircon-monazite geochronology of HT-UHT granulites from Kambam ultrahigh-temperature belt, south Indian. International Geology Reviews, 1-19.
11. Dev, J.A., Tomson, J.K., Sorcar, N., & Francis, K.A. (2022a). Timing of UHT metamorphism and cooling in south Indian granulites: New P-T-t results from a sapphirine granulite. Precambrian Research, 371, 106582.
12. Sajna, S., Tomson, J.K., Dev, J.A., Sorcar, N and Vijaya Kumar, T. (2022): Petrogenesis and tectonic significance of mafic rocks from Nagercoil block, southern India. Minerals.
13. Dev, J.A., Tomson, J.K., Sorcar, N., & Nandakumar, V. (2021). Combined U-Pb/Hf isotopic studies and phase equilibrium modelling of HT-UHT metapelites from Kambam ultrahigh-temperature belt, south India: Constraints on tectonothermal history of the terrane. Lithos, 406, 106531.
14. Sorcar, N., Mukherjee, S., Pant, N.C., Dev, J.A., & Nishanth, N. (2021). Chemical dating of monazite: Testing of analytical protocol for U-Th-total Pb using CAMECA SXFive tatics EPMA at the National Centre for Earth Science Studies, Thiruvananthapuram, India. Journal of Earth System Science, 130(4), 1-11.

Presentations in International conferences :

1. Deepchand, V., Rajesh, V. J., Dev, J. A., Sorcar, N., Tomson, J. K., & Kumar, R. B. Origin and Tectonothermal Evolution of Lodestones in the Layered Ultramafic Intrusions of Coorg Block: Insights from Textural, Chemical, and Geothermometric Constraints: International Association for Gondwana Research (IAGR) Convention and 20th International Conference on Gondwana to Asia, 2023.
2. Dev, J.A., and Tomson: LA-ICPMS zircon-monazite- titanite-rutile-apatite chronology: A robust tool to understand t-T evolution of long-lived orogens: North American Workshop on Laser ablation, June 2023.
3. Dev, J.A., and Tomson, J.K: U-Pb baddeleyite and zircon ages from Kambam Carbonatite, south India, and implications on regional tectonics: Goldschmidt, July 2022.
4. Tomson, J.K., and Dev, J.A: Crustal evolution of south Indian granulites: Insights from zircon Hf isotopes: Goldschmidt, July 2022.
5. Dev, J.A., Tomson, J.K., and Sorcar, N: Unravelling the cooling history of HT-UHT rocks from South India: New evidences from LA-ICPMS analysis of rutiles: Goldschmidt, July 2021.
6. Dev, J.A., Tomson, J.K., S. Sajna, Nilanjana Sorcar and V Nandakumar: Decoding Rodinia events in South India: Evidences from late-Tonian ages within granulites: American Geophysical Union Conference, December 2020.
7. Dev, J.A., J.K. Tomson., Francis, K.A., Sorcar, N., and Nandakumar, V: Timing of high-grade metamorphism in Madurai Block, S. India: Insights from new U-Pb zircon & monazite ages: Goldschmidt, June 2020.
8. Sajna S., Dev, J.A., Sorcar, N., Tomson, J.K., and Nandakumar V: Age & Petrogenesis of Granulites from Nagercoil Block, South India: Goldschmidt, June 2020.
9. Dev, J.A., and Tomson, J.K., (2017) Tectonothermal evolution of Kambam Ultrahigh Temperature Belt, Madurai Block South India: Constraints on Gondwana Assembly. Abstract Volume: Workshop on Geochronology, Inter-University Accelerator Centre, New Delhi, November 2017.

Training/Conferences:

1. 10-day Advanced training on analytical geochemistry conducted by National Geophysical Research Institute (NGRI), Hyderabad under CSIR skill initiative program, March 12-21, 2018.
2. 2-day Workshop on Geochronology conducted by Inter University Accelerator Centre, New Delhi, November 16-17, 2017.
3. 1-day International Workshop on "How to get published in an international high impact journal” conducted by Elsevier and co-sponsored by International Association for Gondwana Research & University of Kerala, November 17, 2016.
4. 5-day National workshop on "REE, Zr & Ti Resources from Beach Placer Deposits of India" organized by Atomic Minerals Directorate for Exploration and Research (AMD) with Geological Society of India, November 7-11, 2016.
5. 2-day National workshop on "Mohr Circle and Modern Method of Fabric Analysis in Deformed Rocks” organized during National Seminar on Developments in Geosciences in the Past Decade-Emerging Trends for the Future & Impact on Society along with Annual General Meeting of the Geological Society of India supported by IUGS-TecTask, October 21-23, 2016.

Membership in Professional Bodies :

1. Geochemical Society.
2. American Geophysical Union.
3. International Association for Structural Geology and Tectonics.

Education:

Professional career:

Training:

• Participated in Tier II training course on “Groundwater Resource Management” organized jointly by Ministry of Water Resources, River Development & Ganga Rejuvenation and Central Ground Water Board held during 14-18 March 2016 at Thiruvananthapuram.
• Refresher Course on “Mountain Hydrology and Climate Change” organized by G B Pant University of Agriculture and Technology (GBPUAT), Pantnagar, Uttarakhand from March 28–April 08, 2016.
• Training on “Basic techniques for the isolation and identification of health indicator bacteria from marine environment” organized by Ministry of Earth Sciences (MoES) during 22-26th August 2016 at National Institute of Oceanography (NIO), Kochi.

Research Interest:

Broad Research Areas: Stable isotopic composition of water and water vapor (δ² H and δ¹⁸O).

1. Understanding different physical processes influencing variation of stable isotopes in precipitation.
2. Understanding moisture source variations and associated water cycle dynamics in river basins.
3. Understanding the process of water circulation and governing factors in river basins using stable isotopic tracer.
4. Understand the land-atmosphere feedback and precipitation recycling using isotope proxies.
5. Understanding the processes of “two water” world hypothesis.
6. Solute dynamics in river basins and changes during estuarine mixing.

Projects:

1. Antimicrobial & chromatographic studies on selected medicinal plants (Kannur University).
2. An assessment of soil quality under different land uses of Kannur district (Kannur University).
3. Factors influences organic removal in the treatment process of distillery wastewater using Membrane Bio-reactor (TERI, New Delhi).
4. Monitoring global change impacts in Western Ghats (Sahyadri) (NCESS, Thiruvananthapuram).
5. Environmental studies of Kollam-Neendakara wetlands and associated inlands (NCESS, Thiruvananthapuram).

Achievements & Awards:

1. First position for poster presentation at the 7th International Groundwater Conference held at ICAR-NASC complex, New Delhi during December 11-13, 2017.
2. Kerala State Council for Science and Technology (KSCSTE) Research Fellowship, 2014
3. Council of Scientific and Industrial Research (CSIR)- Senior Research Fellowship (Direct), April 2019

Membership in Professional Bodies:

1. European Association of Geochemistry (EAG) (Member No. 2016-0235)
2. International Water Resources Association (IWRA)
3. International Association of Hydrological Sciences (IAHS)
4. Indian Association of Hydrologists (IAH)- Life Member
5. American Geophysical Union (AGU)

Publications:

1. Saranya. P , Krishna Kumar, Sudhir Kumar and Anoop Krishnan (2020). Isotopic study on the effect of reservoirs and drought on water cycle dynamics in the tropical Periyar basin draining the slopes of Western Ghats. Journal of Hydrology. 581, 124421.
2. P. Saranya, Gopal Krishnan, M.S. Rao, Sudhir Kumar and Bhishm Kumar (2018). Controls on water vapor isotopes over Roorkee, India: impact of convective activities and depression systems. Journal of Hydrology, 557, 679-687.
3. A Krishnakumar, P Saranya, P Geethu Prasad and C Rakhi (2015). Holocene records of human driven geological impacts in a Ramsar wetland of India. Aquatic Procedia, 4, 373-380.
4. Subhankar Basu, Ankita Kaushik, P Saranya, Vidya S. Batra, Malini Balakrishnan (2016). High strength distillery wastewater treatment by a PAC-MBR with low PAC dosage. Water Science and Technology. 73(5), 1104-11.
5. A Krishnakumar, Revathy Das and Saranya Puthalath (2017). Assessment of the quality of water resources in coastal urban lands of two small catchment rivers, Southwest India. Management of Environmental Quality. 28(3), 444-459.

In Books:

1. A Krishnakumar, P Saranya, Revathy Das, K G Prijilal. ‘Hydrogeochemistry and Environmental Issues of the Wetlands of Kerala, southwestern India’- In: Wetland Science, Perspectives from South Asia (Eds. B. Anjan Kumar Prusty, Rachna Chandra, P. A. Azeez). Springer, India.

Conference presentations/Paper presentations :

1. A Krishnakumar, P Saranya , P Geethu Prasad and C Rakhi (2015). “Holocene records of human driven geological impacts in a Ramsar wetland of India. Presented in International Conference on Water Resources, Coastal and Ocean Engineering (ICWRCOE)” held at NIT, Surathkal (12-14 March, 2015).
2. A Krishnakumar, P Saranya , Anoop Krishnan and V Vinduja (2015). “Evaluation of Seasonal Fluctuation of water quality in Ashtamudi Wetland System, India”. National Seminar on Recent and Emerging Advances in Chemical Science (REACS-2015).
3. A Krishnakumar and P Saranya (2015). “Studies on soil texture, soil erosion status and land-use practices in Neyyar-Karamana basins”, Thiruvananthapuram District, Kerala. National seminar on “Emerging approaches in land use planning, 2015.
4. P Saranya , A Krishnakumar, K Anoop Krishnan and Reji Srinivas (2016). “Heavy metal accumulation and biological risk assessment in a protected wetland, Southwest coast of India”. Presented in International Conference on Geosciences and Environment and 32nd annual convention of Indian Association of Sedimentologists held at Annamalai University (7-10 January, 2016).
5. P Saranya and A. Krishnakumar (2016). “Delineation of groundwater potential and drought prone zones in Periyar river basin, Southern Western Ghats, India. Presented in National conference on Groundwater resources of Kerala: New perspectives and management strategies” held at IIUCNRM, University of Kerala (4-5 February, 2016).
6. A Krishnakumar, Saranya P and Revathy Das (2016). “Studies on soil texture, soil erosion status and Land-use practices in Neyyar-Karamana basins, Thiruvananthapuram district, Kerala” presented in National Seminar on “Emerging approaches in Land Use Plannning” held at Kanakakunnu Place, Thiruvananthapuram.
7. P Saranya and A. Krishnakumar (2016). “Spatio-temporal changes of forest cover in Thiruvananthapuram district, SW India: a GIS based approach”. Presented in “National Seminar on Geospatial Information Systems: Emerging Trends and Utilities” held at International and Inter University Centre for Natural Resources Management (IIUCNRM).
8. P Saranya , A. Krishnakumar and A K Taxak (2016). “A Comprehensive Evaluation of Drought in Periyar River basin, Southern Western Ghats, India- a Geo-spatial approach” presented in National Geo-research Scholars Meet, 2016, held at Wadia Institute of Himalayan Geology.
9. Saranya. P , Krishnakumar. A, Sudhir Kumar and Anoop Krishnan (2016). “River- precipitation interaction- evidence of marine inputs in the first showers of ISM, an insight from Periyar river basin, Southern Western Ghats”. Presented in “National Conference on Water Resources Management in Coastal Regions” held at National Institute of Hydrology, Kakinada.
10. Saranya. P , Krishnakumar. A, Anoop Krishnan K (2016). “Assessment of Climate Change in terms of rainfall trends in twentieth century (1916-2005): A case study from Munnar in Western Ghats”. Presented in “National Conference and 33rd convention of Indian Association of Sedimentologists with emphasis on Energy Resources and Climate Change” held at Banaras Hindu University (BHU).
11. Saranya. P, A Krishnakumar, Sudhir Kumar, Anoop Krishnan (2019). Effect of drought and reservoirs on water circulation mechanism in Periyar basin, Southern Western Ghats: a stable isotope approach. Presented in “American Geophysical Union -2019” held at San Francisco, California.
12. Saranya Puthalath, Krishnakumar Appkuttanpillai, Sudhir Kumar and Anoop Krishnan (2018). Dual monsoon influenced water circulation in a Western Ghat river debouching into the Arabian Sea: A case study from Periyar river basin. Presented in “European Geosciences Union -2018” held at Vienna, Austria.

Poster presentations:

1. P Saranya , A Krishnakumar, Sudhir Kumar and Anoop Krishnan (2017). “Seasonal Patterns of surfacewater and groundwater interaction in Periyar river basin, Kerala, India”. Presented in ‘7th International Groundwater Conference’ held at ICAR-NASC complex, New Delhi during December 11-13, 2017.
2. P Saranya , A Krishnakumar and R Ajayakumar Varma (2016). “Assessing rainfall trends in twentieth century (1916-2005) over Munnar, an ecologically sensitive high altitudinal area of Western Ghats”. Presented in ‘National workshop on Western Ghats evolution and environmental issues’ held at NCESS, Thiruvananthapuram (1-2 January, 2016).

Education:

Research Interest:

Dating of accessory minerals in granulites & Metamorphic Petrology

Achievements & Awards:

1. Qualified CSIR-JRF in Earth, Atmospheric, Ocean and Planetary Sciences

Conference Proceedings:

1. Sajna S and JK Tomson 2016. Tectonic and metamorphic evolution of Nagercoil block through in situ trace element studies on accessory minerals. Proceedings of the 3rd UGC SAP DRS II (2013 – 18) Seminar and talks of the Current Trends in Earth System Sciences (CTESS2015) invited lectures 15 – 16 February 2016 Dept of Geology, University of Kerala, Trivandrum, India., pp 51.
2. Sajna S and JK Tomson2016. In-situ trace element geochemistry and isotopic studies on accessory minerals in granulites from Nagercoil, South India: constraints on metamorphic and tectonic evolution. Proceedings of the National Workshop on Western Ghats: Evolution and environmental issues. 1 - 2nd January 2016, National Centre for Earth Science Studies (NCESS), Thiruvananthapuram, Kerala, India.