National Centre for Earth Science Studies

In Peer Reviewed Journals:

1. Jash D, Resmi EA, Unnikrishnan CK, Sumesh RK, Kumar S, Sukumar N. Analysis of Pre-Monsoon Convective Systems over a Tropical Coastal Region Using C-Band Polarimetric Radar, Satellite and Numerical Simulation. Atmosphere. 2022; 13(9):1349
2. Sumit K, RK Sumesh, EA Resmi, Dharmadas Jash, Unnikrishnan CK, Anusha Andrews, Nita Sukumar, 2022: Raindrop size distribution of stratiform precipitation over Southwest India–The Gateway of Indian Summer Monsoon, Atmospheric Research, 272, 1-16 (Elsevier)
3. Sumesh RK, EA Resmi, Unnikrishnan CK, Dharmadas Jash, D Padmalal, 2022: The extreme precipitation events of August 2018 and 2019 over southern Western Ghats, India: A microphysical analysis using in-situ measurements, Atmospheric Research, 277, 1-20 (Elsevier)
4. Seela BK, Janapati J, Unnikrishnan CK, Lin P-L, Le Loh J, Chang W-Y, Kumar U, Reddy KK, Lee D-I, Venkatrami Reddy M., Raindrop Size Distributions of North Indian Ocean Tropical Cyclones Observed at the Coastal and Inland Stations in South India. Remote Sensing. 2021; 13(16):3178
5. Unnikrishnan CK., S Pawar, V. Gopalakrishnan, 2021: Satellite-observed lightning hotspots in India and lightning variability over tropical South India, Advances in Space Research, Vol. 68, 4, 1690-1705. (Elsevier)
6. Sumesh RK, Resmi EA, Unnikrishnan CK, D Jash, KK Ramachdran, 2021: Signatures of shallow and deep clouds inferred from precipitation microphysics over windward side of Western Ghats, Journal of Geophysical Research: Atmospheres, 126, 10, 1-31. (Wiley).
7. Anoop T.R., C.K. Unnikrishnan, Karumuri Ashok, K.K. Ramachandran and T.N. Prakash, 2019: South Asian subtropical low-level jet: influence on the regional hydrology and aerosol optical depth, Current Science, September Vol.117, 1-8
8. Jayalakshmi, J., B. K. Seela, P.L. Lin, P.K. Wang, C.H. Tseng, K. K. Reddy, H. Hashiguchi, L. Feng, S. K. Das, and Unnikrishnan C. K., 2020: Raindrop size distribution characteristics of Indian and Pacific Ocean tropical cyclones observed at India and Taiwan sites. Journal of the Meteorological Society of Japan, 98
9. R.K.Sumesh, E.A.Resmi, C.K. Unnikrishnan, DharmadasJash, T.S.Sreekanth, M.C. ResmiMol, K.Rajeevan, S.Nita, K.K.Ramachandran, 2019: Microphysical aspects of tropical rainfall during Bright Band events at mid and high-altitude regions over Southern Western Ghats, India ,Atmospheric Research, Volume 227, ,178-197 (Elsevier).
10. D. Jash, EA Resmi, C.K. Unnikrishnan, RK Sumesh, et al., Atmospheric Research, Vol.217, March 2019, 24-36. (Elsevier). Variation in rain drop size distribution and rain integral parameters during southwest monsoon over a tropical station: An inter-comparison of disdrometer and Micro Rain Radar, Atmospheric Research, Vol.217, 2019, 24-36. (Elsevier).
11. C.K. Unnikrishnan and M. Rajeevan, 2018: Atmospheric water budget over the South Asian summer monsoon region, Meteorology and Atmospheric Physics, 1-16 (Springer).
12. SumeshK R. K, Rajeevan E.A, Resmi, C. K. Unnikrishnan 2017: Particulate Matter Concentrations in the Southern Tip of India: Temporal Variation, Meteorological Influences, and Source Identification. Earth Systems and Environment, 1-13 (Springer).
13. Kolliyil Rajeevan, R. K. Sumesh, Resmi E A, C.K. Unnikrishnan, 2018: An observational study on the variation of black carbon aerosol and source identification over a tropical station in south India, Atmospheric pollution research, 1-15, (Elsevier).
14. Unnikrishnan C.K, Biswadip Gharai, Saji Mohandas, Ashu Mamgain, E.N. Rajagopal, G. R. Iyengar and P. V. N Rao, 2016: Recent changes on land use/land cover over Indian region and its impact on the weather prediction using Unified model, Atmospheric Science Letters (Wiley), Vol 17, 4., pp 294-300.
15. Unnikrishnan C.K, Abhishek Lodh , Devesh Maurya, Swapan Mallick, John P. George, EN Rajagopal and Saji Mohandas, 2016: Comparison of two high resolution gridded soil moisture products over India, Journal of Earth System Sciences (Springer), Vol.125, 5, pp 935-944.
16. Ashu M, Unnikrishnan C.K, E.N Rajagopal, 2016: Recent land-use land-cover changes and their impact on the evolution and structure of thunderstorms in New Delhi, Proc. SPIE (Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VI),Vol. 9882, doi:10.1117/12.2223602, pp 1-6.
17. Unnikrishnan C.K, M Rajeevan and S Vijaya Bhaskara Rao, 2016: Impact of high resolution land surface initialization in Indian monsoon simulation using a regional climate model, Journal of Earth System Science (Springer), Vol.125, 4, pp 677-689.
18. Unnikrishnan C.K, M Rajeevan and SVB Rao, 2015: A study on the role of land-atmosphere coupling on the south Asian monsoon climate variability using a regional climate model, Theoretical and Applied Climatology (Springer), 1-16, doi: 10.1007/s00704-015-1680-y.
19. Unnikrishnan C.K, M Rajeevan, S Vijaya Bhaskara Rao and Manoj Kumar, 2013: Development of a High Resolution Land Surface Data set for the South Asian monsoon region, Current Science, Vol 105, 9, pp 1235-1246.
20. M Rajeevan, Unnikrishnan C.K and Preeti Bhaskar, 2012: Evaluation of the ENSEMBLES multi-model seasonal forecasts of Indian summer monsoon variability, Climate Dynamics (Springer), Volume 38, Numbers 11-12 (2012), 2257-2274.
21. M. Rajeevan, Unnikrishnan C.K, Jyoti Bhate, K. Niranjan Kumar and P. P. Sreekala, 2012: Northeast Monsoon over India: Variability and Prediction, Met. Apps. (Wiley), 19, 226–236, doi: 10.1002/met.1322.
22. Jyoti Bhate, Unnikrishnan C.K and M. Rajeevan, 2012: Regional Climate simulation of the 2009 Indian summer monsoon, Indian Journal of Radio and Space Physics (ISSN: 0367-8393), Vol. 41, Aug 2012, 488-500.
23. M. Rajeevan, P. Rohini, K. Niranjan Kumar, J. Srinivasan and Unnikrishnan C.K, 2013: A study of vertical cloud structure of the Indian summer monsoon using CloudSat data, Climate Dynamics (Springer), Volume 40, Issue 3-4, pp 637-650.

Research reports/Conference proceedings/presentations

1. Abhishek Lodh, Hashmi Fatima, M.P. Raju, Unnikrishnan C.K., Ashis K. Mitra, John P. George And E. N. Rajagopal, 2016, Impact Of GPM Rainfall Forcing On JULES Soil Moisture Simulation, TROPMET2016
2. Unnikrishnan C.K, Saji Mohandas and E.N. Rajagopal, 2016, Documentation of the Land Surface Scheme in NCMRWF Unified Model, NCMRWF Technical report, No. NMRF/TR/05/2016, 1-69.
3. Unnikrishnan C.K, Ashu Mamgain, Biswadip Gharai, Saji Mohandas, E.N. Rajagopal, P. N. V. Rao and G. R. Iyengar, 2015: Impact of Land use Land cover on Severe Weather Predictions with NCMRWF Unified Model, TROPMET 2015.
4. Unnikrishnan C.K, Abhishek Lodh, Devesh Maurya, SwapanMallick, John P. George and E.N. Rajagopal, 2015: Comparison of Unified Model Soil Moisture Analysis with NRSC Derived Soil Moisture and IMD Observations, TROPMET 2015.
5. Abhishek Lodh, Unnikrishnan C.K , John P George and E. N. Rajagopal, 2015: Impact of ISRO vegetation on EKF based Land-Data Assimilation System for NCUM at NCMRWF, National Climate change conference, 2-3 July 2015, Indian Institute of Science, Bangalore.
6. Unnikrishnan C.K, M. Rajeevan and S Vijaya Baskara Rao, 2014: Impact of high resolution land data initialization in the seasonal and sub-seasonal prediction of Indian summer monsoon rainfall, INTROMET-2014, SRM University, 2014.
7. M Rajeevan and Unnikrishnan C.K, 2014: Monsoon and Land surface processes, PROWSES, pp 72-73.
8. Unnikrishnan C.K and E.N. Rajagopal, 2014: Evaluation of JULES land surface model with LASPEX dataset, WMO 6th International Verification Methods Workshop, New Delhi, India, March, 2014.
9. Unnikrishnan C.K, M. Rajeevan and S Vijaya Baskara Rao, 2014: Land - Atmosphere coupling over the Indian monsoon region in a regional climate model, INTROMET-2014, SRM University.
10. Unnikrishnan C.K, M. Rajeevan and S Vijaya Baskara Rao, 2013: Seasonal forecast skill of the Indian summer monsoon in the ENSEMBLES coupled models, WCRP/WMO, International workshop on seasonal to decadal prediction, Toulouse, France, 13 -16 May 2013.
11. Unnikrishnan C.K, M. Rajeevan and S. Vijaya Bhaskara Rao, 2012: Role of Green vegetation fraction in land surface processes over Indian summer monsoon region, 39th COSPAR Scientific Assembly, ISSN 1815-2619.
12. Unnikrishnan C.K, M. Rajeevan and S. Vijaya Bhaskara Rao, 2012: Variability of sensible and latent heat flux simulated over Indian summer monsoon region using a land data assimilation system, National Space Science Symposium -2012, PS1-106, Page-59, and ISBN: 978-93-81899-01-04.
13. Unnikrishnan C.K, Malleswara Rao. M , M Rajeevan and S Vijaya Bhaskara Rao, 2012: Sensitivity of Green Vegetation Fraction in Land Surface Processes over South East Peninsular India, AP Science Congress-2012, Andhra Pradesh, India.
14. Unnikrishnan C. K, Kiran Salunke, D A Ramu, Ojha Sayantani, P K Theja, Rana Sapna, Shewale Swati, 2012: Development of a statistical model for Indian summer monsoon prediction and it’s skill comparison with GCM, APEC Climate Center Training program 2012, Busan, Republic of Korea, Nov.2012(http://www.apcc21.org/eng/acts/op/japcc0206_viw.jsp).
15. M. Rajeevan, Unnikrishnan C.K., Pai, 2012 : Long Range Forecasting of the Indian summer monsoon, OCHAMP-2012, IITM, Pune, India, 21-25 Feb. 2012.
16. Malleswara Rao M, Unnikrishnan C.K and M Rajeevan, 2012: Synoptic Features of Heat Wave Events over Indian Region, AP Science Congress-2012, Andhra Pradesh, India.
17. M S Narayanan, M. Rajeevan, Jyoti Bhate, Unnikrishnan C.K., M. Ravichandran, Hasibur Rahman, Siva Reddy, 2010: A Training Technique for Improved Estimation of Satellite Derived Rainfall Products over the Indian Land Mass, National Space Science Symposium-2010, Rajkot, India.
18. Suresh Raju. C, Unnikrishnan C.K, Korak Saha, K. Krishnamoorthy, 2009: Parameterizing Microwave Emissivity of the Indian Desert Region, 5th International Conference on Microwaves, Antenna, Propagation and Remote Sensing (ICMARS-2009), 19th – 21st December 2009.
19. M Rajeevan, Amit Kesarkar, Jyoti Bhate, Unnikrishnan C.K., and M.Venkatratnam, 2010: Skill of short-range forecasts for vertical profile of winds over the SHAR region: A brief report, National Atmospheric Research Laboratory, Dept. of Space, Gadanki, Research Report No NARL/WCRG/1/2010.
20. M. Rajeevan, Amit Kesarkar, Jyoti Bhate, Unnikrishnan C.K., Madhu Latha, and Sreeram Mahesh, 2009: Development of a Real Time Short-range Weather Forecasting System and its verification during the 2009 Southwest Monsoon Season, WCRG report, National Atmospheric Research Laboratory, Dept. of Space, and Research Report No. NARL/WCRG/2/2009.

Publications:

1. Paras R. Pujari, V. Jain, V. Singh, K. Sreelash, S. Dhyani, M. Nema, P. Verma, R. Kumar, S. Jain and M. Sekhar. (2020). Critical zone: an emerging research area for sustainability. Current Science 118 (10), 1487-1488.
2. K. Sreelash, Merin Mathew, Nisha, N, Arulbalaji P., Bindu, A.G. and Rajat Sharma. (2020). Changes in the hydrological characteristics of Cauvery river draining the eastern side of southern Western Ghats, India. International Journal of River Basin Management. 18 (2), 153-166. DOI: 10.1080/15715124.2020.1719119.
3. Arulbalaji, P, K. Sreelash, Maya K and Padmalal D. (2020). Hydrological assessment of groundwater potential zones of Cauvery River Basin, India: a geospatial approach. Environmental Earth Sciences 78 (24), 667. DOI: 10.1007/s12665-019-8673-6.
4. Arulbalaji, P., Padmalal, D and K. Sreelash, (2019). GIS and AHP Techniques Based Delineation of Groundwater Potential Zones: a case study from southern Western Ghats, India. Scientific Reports. 9, 1-17. DOI: 10.1038/s41598-019-38567-x.
5. K. Sreelash, Sharma, R.K., Gayathri, J.A., Upendra, B., Maya, K. and Padmalal, D. (2018). Impact of rainfall variability on river hydrology– a case study of southern Western Ghats, India. Journal of Geological Society of India. Vol.92, pp.548-554. DOI : 10.1007/s12594-018-1065-9.
6. Padmalal, D., K. Sreelash, Vipin T Raj and Sajan, K. (2018) River discharge, major ion chemistry and sediment transport of the Bharathapuzha river in Southern Western Ghats, India: Implications on catchment erosion. Journal of Geological Society of India. Vol.92, pp.568-578. DOI: 10.1007/s12594-018-1069-5.
7. Maya, K., Prasenjit, D., K. Sreelash and Narendra Babu. (2018). The coastal springs of Southern Kerala, SW India- Hydrology and water quality assessment. Journal of Geological Society of India. Vol.92, pp.616-625. DOI: 10.1007/s12594-018-1075-7.
8. K. Sreelash, Samuel Buis, Muddu Sekhar, Laurent Ruiz Sat Kumar Tomer and Martine Guerif. (2017). Estimation of available water capacity components of two-layered soils using crop model inversion: Effect of crop type and water regime. Journal of Hydrology, Vol. 546, pp. 166-178
9. Tomer, S. K., Al Bitar, A., Sekhar, M., Corgne, S., Bandyopadhyay, S., K. Sreelash, Sharma, A. K., Zribi, M. and Kerr, Y. (2015). Retrieval and multi-scale validation of soil moisture from multi-temporal SAR data in a semi-arid tropical region. Remote Sens. 7, 8128-8153.
10. K. Sreelash, M. Sekhar, L. Ruiz. S. Buis and S. Bandyopadhyay. (2013). Agro-hydrological modelling in a semi-arid watershed combining field measurements and remote sensing. Journal of Indian Institute of Science, 93(2), pp. 189-207.
11. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, M. Guerif, S. Buis, P. Durand and C. Gascuel-Odoux. (2012). Parameter estimation of a two-horizon soil profile by combining crop canopy and surface soil moisture observations using GLUE. Journal of Hydrology, 456-457, pp. 57-67.
12. K Sreelash and B V Mudgal, 2010, Drag Characteristics of Cylindrical Piers with Slots and/or Collars in Subcritical Flow, ISH Journal of Hydraulic Engineering, 16(2), pp. 75-87.

Books/ Book Chapters:

• Adaptation work of Groundwater Hydrology, 3ed by David K. Todd, Larry W. Mays. Type of work: Chapter Review and Content Development for Adaptation of the book .
• Tomer, S. K., K. Sreelash, Ruiz, L. and Sekhar, M. (2019). A Case Study on Management of Groundwater Resources for Agriculture. Book Chapter on “Water Futures of India: Status of Science and Technology”, Editors: P.P. Mujamdar and V.M. Tiwari. Indian National Science Academy publication.

Research reports/Conference proceedings/Presentations

1. Merin Mariam Mathew, K Sreelash and Micky Mathew “Acceleration of Hydrological Cycle: Evidences from the River Basins Draining the Southern Western Ghats India” 16th Annual Meeting of Asia Oceanic Geosciences Society (AOGS – 2019) in the Hydrological Sciences Session of the Singapore from 28th July to 2nd Aug, 2019, Singapore.
2. Anu S Patil, K. Sreelash, Varija K., Rajat Sharma. Integrated Surface- Subsurface Hydrological Modelling of a Humid Tropical River Basin. 16th Annual Meeting of Asia Oceanic Geosciences Society (AOGS – 2019) in the Hydrological Sciences Session of the Singapore from 28th July to 2nd Aug, 2019, Singapore.
3. K Sreelash, Rajat Kumar Sharma, Gayathri J A and Vipin T Raj. (2017). Effect of changes in the land surface and precipitation on the hydrology of small catchment rivers of southern Western Ghats, India. 7th International Groundwater Conference on Groundwater Vision-2030, 11-13 Dec, 2017, New Delhi.
4. K Sreelash, Rajat Kumar Sharma and Padmalal Damodharan. Tracing the natural and anthropogenic stressors on Hydrological Characteristics of river basins: A case study of rivers draining the southern Western Ghats, India. International Conference on the Status and Future of the World's Large Rivers, 18-21 April, 2017, New Delhi.
5. Rajat K Sharma, V M Tiwari, K Sreelash, D Padmalal. Monthly Evapotranspiration Simulation in Cauvery River Basin Using SWAT Model- INDO-US Bilateral Workshop on ‘Assessments of Regional Hydrology Using Space-Borne Gravity Observations,14-16 Nov 2016’, CSIR-NGRI, Hyderabad.
6. K. Sreelash, S. Buis, M. Guerif, M. Sekhar, and L Ruiz. Quantifying the uncertainties in the estimation of multilayered soil hydraulic properties at a catchment scale. TERENO International Conference, From observation to Prediction in terrestrial systems, 29 sep to 2nd Oct 2014, Bonn, Germany.
7. S. Buis, K. Sreelash, M. Guerif M. Sekhar, L. Ruiz, Sat Kumar, Amit Sharma, F., Ruget. Estimation of multilayered soil properties by inversion of a crop model using surface soil moisture and LAI: evaluation on experimental datasets. 15th Annual Conference of the International Association for Mathematical Geosciences. Madrid, Spain, 2-6 September 2013.
8. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, S. Buis, M. Guerif, P. Durand, C. Gascuel-Odoux. Estimation of multilayered soil properties using agro-hydrological models and microwave remote sensing. Second international conference on Hydropedology, Leipzig, Germany, (2012).
9. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, S. Buis, M. Guerif, P. Durand, Chantal Gascuel-Odoux (2012). Quantifying Uncertainty in Estimation of Potential Recharge in Tropical and Temperate Catchments using a Crop Model and Microwave Remote Sensing. AGU fall meeting San Francisco 3 – 7 Dec. (2012).
10. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, C. Gascuel-Odoux. (2012). Agro-hydrological models combined with microwave remote sensing data for improved management of groundwater irrigation. Fifth International Groundwater Conference, Aurangabad, India.
11. Sat Kumar Tomer, K. Sreelash, Muddu Sekhar, Laurent Ruiz, and Chantal Gascuel-Odoux. (2011). Coupling agricultural and hydrological models for improved management of groundwater irrigation under climate change. Vol. 13, EGU General Assembly, Vienna, Austria.
12. K. Sreelash, Merin Mathew, Micky Mathew and Padmalal D. Changes in the characteristics of surface-subsurface water interactions in humid and semi-arid tropics. Presented in the ‘III Indian National Groundwater Conference (INGWC -2020)’ during 18th to 20th Feb, 2020 at CWRDM, Calicut.
13. K. Sreelash, Arulbalaji P and Padmalal D. 2019. “Kerala Flood-2018: Hydroclimatic issues and Modelling” at the FIGA conference, NGRI, Hyderabad, during 15 and 16th October, 2019.
14. Merin Mariam Mathew, Micky Mathew and K Sreelash, (2019), Acceleration of Hydrological Cycle: Evidences from The River Basins of Kerala. Poster presented at the National seminar on ‘Surface water and groundwater resources of Kerala: Management Issues, Policies, Future Strategies’ held at Department of Geology, University of Kerala on 15t March, 2019.
15. Vipin T Raj, Gayathri J A., K. Sreelash, Sajan K. and Padmalal D. (2019). Solute transport through the rivers draining Silent Valley and adjoining regions of Southern Western Ghats, India. 31st Kerala Science Congress, 2 -3 February, 2019, Kollam, Kerala.
16. Gayathri J A., Maya K, K. Sreelash, and Padmalal D. (2019). Major Ion Concentration in the Groundwater Sources of Bhavani River Basin (Kerala) - Its Implications on Silicate Weathering. 31st Kerala Science Congress, 2 -3 February, 2019, Kollam, Kerala.
17. Anu S Patil, K. Varija, K. Sreelash and Merin Mariam Mathew (2018). Understanding the surface-subsurface water interactions in a tropical river basin. Presented in HYDRO-2018, held at NIT Patna during 19-21 Dec, 2018.
18. Vipin T Raj, K. Sreelash, Sajan K. and Padmalal D. (2018). Major ion chemistry and sediment transport of Bhavani river, Kerala, SW India. 28th Swadeshi Science Congress. National seminar. 7 to 9th November. CSIR- National Institute for Interdisciplinary Science and Technology (NIIST).
19. Gayathri J A., Maya K, K. Sreelash, and Padmalal D. (2018). Hydrochemical Assessment of groundwater in Bhavani River basin.28th Swadeshi Science Congress,7-9 Nov 2018, CSIR- National Institute for Interdisciplinary Science and Technology (NIIST).
20. K. Sreelash, (2018). Improving the estimation of soil water fluxes using agro-hydrological model inversion for effective irrigation water management. Poster presented in the India International Science Festival-2018.
21. K. Sreelash. Hydrological response of river basins to climate changes: A study from Kerala, SW India. 29th Kerala Science Congress, 28-30 Jan, 2017, Thiruvalla, Kerala.
22. K Sreelash and Rajat Kumar Sharma. Hydroclimatic trends in Periyar and Netravati river basins, South West India: Implications on sustainable river basin management. 26th Swadeshi Science Congress, 7 – 9 Nov, 2016, CMFRI, Kochi.
23. K Sreelash K, Rajat Kumar Sharma Gayathri J A, and Vipin T Raj. Effect of changes in the land surface and precipitation on the hydrology of small catchment rivers of southern Western Ghats, India. Conference Proceedings of 7th International Ground Water Conference (IGWC – 2017), New Delhi during 10 to 13th December 2017.
24. K Sreelash, Rajat Kumar Sharma and Padmalal Damodharan. Tracing the natural and anthropogenic stressors on Hydrological Characteristics of river basins: A case study of rivers draining the southern Western Ghats, India. International Conference on the Status and Future of the World's Large Rivers, 18-21 April, 2017, New Delhi.
25. K. Sreelash, S. Buis, M. Guerif, M. Sekhar, and L Ruiz. Quantifying the uncertainties in the estimation of multilayered soil hydraulic properties at a catchment scale. TERENO International Conference, From observation to Prediction in terrestrial systems, 29 sep to 2nd Oct 2014, Lepzig, Germany.
26. S. Buis, K. Sreelash, M. Guerif M. Sekhar, L. Ruiz, Sat Kumar, Amit Sharma, F., Ruget. Estimation of multilayered soil properties by inversion of a crop model using surface soil moisture and LAI: evaluation on experimental datasets. 15th Annual Conference of the International Association for Mathematical Geosciences. Madrid, Spain, 2-6 September 2013.
27. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, S. Buis, M. Guerif, P. Durand, C. Gascuel-Odoux. Estimation of multilayered soil properties using agro-hydrological models and microwave remote sensing. Second international conference on Hydropedology, Leipzig, Germany, (2012).
28. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, S. Buis, M. Guerif, P. Durand, Chantal Gascuel-Odoux (2012). Quantifying Uncertainty in Estimation of Potential Recharge in Tropical and Temperate Catchments using a Crop Model and Microwave Remote Sensing. AGU fall meeting San Francisco 3 – 7 Dec. (2012).
29. K. Sreelash, M. Sekhar, L. Ruiz, Sat Kumar, S. Bandyopadhyay, C. Gascuel-Odoux. Agro-hydrological models combined with microwave remote sensing data for improved management of groundwater irrigation. Fifth International Groundwater Conference, Aurangabad, India (2012).
30. Sat Kumar Tomer, K. Sreelash,, Muddu Sekhar, Laurent Ruiz, and Chantal Gascuel-Odoux. Coupling agricultural and hydrological models for improved management of groundwater irrigation under climate change. Vol. 13, EGU General Assembly, Vienna, Austria, 2011.

Project Reports:

1. Hydrological Response of River Basins to Climate Changes: A Study from Kerala, India. Interim Report submitted to KSCSTE. Aug-2020. 40p.
2. Assessment of the quality of river bed materials collected from Pamba river at Pamba-Triveni during Kerala Flood-2018. Report submitted to Chief Conservator of Forests, Southern Circle, Kollam, May- 2020, 27p.
3. Assessment of sand and gravel deposit in Pamba-Triveni and adjoining areas. Report submitted to The Principal Chief Conservator of Forest and Head of Forest Force, Kerala by National Centre for Earth Science Studies, Thiruvananthapuram. May -2019, 38p.

Books & Monographs:

1. Meenu Rani, S. Kaliraj, Sufia R, Pavan Kumar, Haroon S (2020) Remote Sensing of Ocean and Coastal Environments (1st Edition) in Earth Observation Series (Elsevier), ISBN: 978-0-12-819604-5, https://doi.org/10.1016/C2019-0-00225-7 , October 2020.

Book Chapters published:

1. S. Kaliraj, K.K. Ramachandran, N. Chandrasekar (2020) Modeling of coastal environmental vulnerability in South India: a multiple parametric approach using remote sensing and GIS. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 225-249, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00014-7.
2. S. Kaliraj, K.K. Ramachandran, N. Chandrasekar (2020) Modeling of coastal vulnerability to sea-level rise and shoreline erosion using modified CVI model. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 315-340, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00018-4.
3. S. Kaliraj, K.K. Ramachandran, Prashant Ghadei, Sulochana Shekhar (2020) Seasonal variability of sea surface temperature in Southern Indian coastal water using Landsat 8 OLI/TIRS images. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 277-295, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00016-0.
4. S. Kaliraj, K.K. Ramachandran, Prashant Ghadei, Sulochana Shekhar (2020) Ocean remote sensing for seasonal predictability of Phytoplankton (chl-a) Biomass in the Southern Indian coastal water region using Landsat 8 OLI images. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 31-46, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00003-2.
5. S. Kaliraj, K.K. Ramachandran, Pavan Kumar,(2020) Ocean remote sensing for spatio-temporal variability of wave energy density and littoral current velocity in the Southern Indian offshore. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 47-63, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00004-4.
6. S. Kaliraj, K.K. Ramachandran, Prashant Ghadei, Sulochana Shekhar (2020) Ocean remote sensing of seawater salinity and its seasonal variability: a case study of Southern Indian coastal water using Landsat 8 OLI images. Editor(s): Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 65-81, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00005-6.
7. S. Kaliraj, K.K. Ramachandran, Prashant Ghadei, Sulochana Shekhar (2020) Ocean remote sensing of suspended sediment variability in Southern Indian coastal water region using Landsat 8 OLI images. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 297-313, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00017-2.
8. Krishnakumar A., S.K. Aditya, S. Kaliraj, K. Anoop Krishnan, Jeenu Jose (2020) Evaluation of suspended sediment concentration and heavy metal distribution in Ashtamudi Lake, a Ramsar site in the southwest coast of India using remote sensing and GIS techniques. Remote sensing of Ocean and Coastal Environment (Elsevier Publications), Editor(s): Meenu Rani, Kaliraj Seenipandi, Sufia Rehman, Pavan Kumar, Haroon Sajjad, Pages 251-275, ISBN 9780128196045, https://doi.org/10.1016/B978-0-12-819604-5.00015-9.
9. S. Kaliraj., Chandrasekar N., Ramachandran K.K. (2019) Phytoplankton (chl-a) Biomass Seasonal Variability in the Gulf of Mannar, South India: A Remote Sensing Perspective. In: Kumar et al., (eds) Applications and Challenges of Geospatial Technology (Springer), https://doi.org/10.1007/978-3-319-99882-4_5
10. Salaj S.S., Srivastava S.K., Dugal R., Upadhyay R., Suresh Babu D.S., S. Kaliraj (2019) Application of ASTER Remote Sensing for Lithological Mapping in the Udaipur District of Rajasthan, India. In: Kumar et al.,. (eds) Applications and Challenges of Geospatial Technology (Springer), https://doi.org/10.1007/978-3-319-99882-4_7
11. Rani M., S. Kaliraj, Ahmed R., Tripathy B., Tripathy B.R., Pippal G.S. (2019) A Sediment Dynamic Modelling of Landsat OLI Image for Suspended Sediment Drift Along the Southwest Coast of India. In: Kumar et al.,. (eds) Applications and Challenges of Geospatial Technology (Springer), https://doi.org/10.1007/978-3-319-99882-4_9.

In Peer Reviewed Journals:

1. A. Krishnakumar, J. Jose, Kaliraj S, S.K. Aditya, K. Anoop Krishnan (2022) Assessment of the impact of flood on groundwater hydrochemistry and its suitability for drinking and irrigation in the River Periyar Lower Basin, India. Environ Sci Pollut Res. https://doi.org/10.1007/s11356-021-17596-y.
2. S.S. Salaj, D. Ramesh, D.S. Suresh Babu, Kaliraj S, N. Chandrasekar (2022) Appraisal of urban growth impacts on seawater intrusion vulnerability using GIS-based modified GALDIT-U model: a case study of Kozhikode coastal stretch, Kerala, South India. Journal of Applied Remote Sensing, 16(1), 012014. https://doi.org/10.1117/1.JRS.16.012014
3. S. Selvakumar, N. Chandrasekar, Y. Srinivas, S. Selvam, Kaliraj S, N.S. Magesh, S. Venkatramanan (2022) Hydrogeochemical processes controlling the groundwater salinity in the coastal aquifers of Southern Tamil Nadu, India. Marine Pollution Bulletin, 174, 113264. https://doi.org/10.1016/j.marpolbul.2021.113264.
4. R.G. Rejith, M. Sundararajan, L. Gnanappazham, Kaliraj S, S.I. Ramaswamy (2022) GIS-based machine learning algorithms for mapping beach placer deposits in the southwest coast of India using Landsat-8 OLI images. Journal of Applied Remote Sensing, 16(1), 012011. https://doi.org/10.1117/1.JRS.16.012011
5. R.G. Rejith , M. Sundararajan, L. Gnanappazham, Kaliraj S, N. Chandrasekar (2022) Exploring beach placer minerals in the east coast of Tamil Nadu, India using EO-1 Hyperion data. Journal of Applied Remote Sensing (accepted article)
6. S. Arunbose, Y. Srinivas, S. Rajkumar, Nithya C. Nair, Kaliraj S (2021) Remote sensing, GIS and AHP techniques based investigation of groundwater potential zones in the Karumeniyar river basin, Tamil Nadu, southern India. Groundwater for Sustainable Development, 14, 100586. https://doi.org/10.1016/j.gsd.2021.100586.
7. M. Lalitha, S. Dharumarajan, B. Kalaiselvi, K. Shivanand, A. Koyal, Kaliraj S, R. Hegde (2021) Hydrochemical characterization and groundwater quality in Cauvery deltaic fluvial plains of Southern India. Environ Sci Pollut Res, 28, 44861–44876. https://doi.org/10.1007/s11356-021-13467-8
8. M. Lalitha, K.S.A. Kumar, K.M. Nair, S. Dharumarajan, A. Koyal, K. Shivanand, Kaliraj S, R. Hegde (2021) Evaluating pedogenesis and soil Atterberg limits for inducing landslides in the Western Ghats, Idukki District of Kerala, South India. Nat Hazards 106, 487–507. https://doi.org/10.1007/s11069-020-04472-0
9. B.R. Tripathy, X. Liu, M. Songer, L. Kumar, Kaliraj S, N.D. Chatterjee, W.M.S. Wickramasinghe, K.K. Mahanta (2021) Descriptive Spatial Analysis of Human-Elephant Conflict (HEC) Distribution and Mapping HEC Hotspots in Keonjhar Forest Division, India. Front. Ecol. Evol. 9:640624. doi: 10.3389/fevo.2021.640624.
10. Kaliraj S., Ramachandran, K.K., Lalitha, M., Chandrasekar, N. (2020) GIS based NRCS-CN modelling of rainfall-runoff and its effect on swift surface landforms in the River Thamirabarani sub-basin, Southern India. Journal of Hydro-Environmental Research (Elsevier).
11. Arun Bose., Srinivas, Y., Rajkumar, S., Kaliraj, S., Nithya C. Nair (2020) Deciphering of Groundwater Potential Zone in Karamaniyar River Basin, Southern Tamil Nadu, India: an Integrated Remote Sensing, GIS and AHP Approach. Remote Sensing Applications: Society and Environment (Elsevier).
12. Lalitha M., Dharumarajan S, Kalaiselvi B, Shivanand, Arti K, S. Kaliraj, Rajendra Hegde (2020) Hydrochemical characterization and groundwater quality in Cauvery deltaic fluvial plains of southern Tamil Nadu. Environmental Science and Pollution Research (Springer).
13. Lalitha M, Anil Kumar K.S, K.M. Nair, S. Dharumarajan, Arti K, Shivanand, S. Kaliraj, Rajendra Hegde (2020) Evaluating pedogenesis and soil Atterberg limits induce landslide in the mid-range of the Western Ghats, Idukki District of Kerala, South India. Natural Hazards (Springer).
14. Antony, S., Dev, V.V., Kaliraj, S., Ambili, M.S., Krishnan, K. A. (2020). Seasonal variability of groundwater quality in coastal aquifers of Kavaratti Island, Lakshadweep Archipelago, India. Groundwater for Sustainable Development (Elsevier) , 11, 100377. doi:10.1016/j.gsd.2020.100377
15. Antony, S., Dev, V. V., Mahadevan, H., Kaliraj, S., Ajayan, A., & Krishnan, K. A. (2020). Environmental influences on zooplankton diversity in the Kavaratti lagoon and offshore, Lakshadweep Archipelago, India. Regional Studies in Marine Science (Elsevier), 101330. doi:10.1016/j.rsma.2020.101330
16. S. Kaliraj, N. Chandrasekar, K.K. Ramachandran, S. Selvakumar (2019) Seawater intrusion vulnerability in the coastal aquifers of southern India—an appraisal of the GALDIT model, parameters’ sensitivity, and hydrochemical indicators. Environmental Science and Pollution Research (Springer) https://doi.org/10.1007/s11356-019-04401-0 (IF. 3.08)
17. Kaliraj S., Chandrasekar N. Ramachandran K.K. (2019) Coastal habitat vulnerability of Southern India: a multiple parametric approach of GIS based HVI (Habitat Vulnerability Index) model. Physical Geography and Quaternary Dynamics (GFDQ), 42(2019) 27-42. doi: 10.4461/GFDQ.2019.42.3 (IF 1.8)
18. Nair, N.C., Srinivas, Y., Magesh, N.S., Kaliraj, S. (2019). Assessment of groundwater potential zones in Chittar basin, Southern India using GIS based AHP technique. Remote Sensing Applications: Society and Environment (Elsevier) doi:10.1016/j.rsase.2019.100248
19. S. Selvakumar, N. Chandrasekar, S. Kaliraj, N.S. Magesh (2018) Salinization of shallow aquifer in the Karamaniyar river basin, Southern India. Environment, Development and Sustainability (Springer), 1255–1273. https://doi.org/10.1007/s10668-017-9937-5 (IF. 1.38).
20. R.G. Rejith, M. Sundararajan, S. Kaliraj (2018) A Geo-processing Modeling of Deltaic Suspended Sediment Variability. Journal of Geovisualization and Spatial Analysis (Springer), 2(13), https://doi.org/10.1007/s41651-018-0020-z.
21. B.R.Tripathy, S. Kaliraj, H. Sajjad, P.K. Joshi, B.S. Chaudhary, P. Kumar (2018) Monitoring of seasonal variability and movement of suspended sediment concentrations along the Thiruvananthapuram coast, southern India, using the Landsat OLI sensor. Ocean Science (European Geosciences Union), 14, 1085–1092, https://doi.org/10.5194/os-14-1085-2018 (IF.2.8)
22. Salaj SS, D Ramesh, DS Babu, S. Kaliraj (2018) Impacts of urbanization on groundwater vulnerability along the Kozhikode coastal stretch, Southwestern India using GIS based modified DRASTIC-U Model. Journal of Coastal Sciences, 5(2), 1-27.
23. Salaj SS, D Ramesh, DS Babu, S. Kaliraj (2018) Assessment of coastal change impact on seawater intrusion vulnerability in Kozhikode coastal stretch, South India using Geospatial technique. Journal of Coastal Sciences, 5(1), 27-41.
24. S. Kaliraj, N. Chandrasekar, K.K. Ramachandran, Y. Srinivas, S. Saravanan (2017) Coastal landuse and land cover change and transformations of Kanyakumari coast, India using remote sensing and GIS. The Egyptian Journal of Remote Sensing and Space Sciences (Elsevier publication & SCI Journal). DOI: 10.1016/j.ejrs.2017.04.003. Impact Factor: 1.74
25. S. Kaliraj, N. Chandrasekar, K.K. Ramachandran (2016) Mapping of coastal landforms and volumetric change analysis in the south west coast of Kanyakumari, South India using remote sensing and GIS techniques. The Egyptian Journal of Remote Sensing and Space Science (Elsevier publication & SCI Journal). DOI: 10.1016/j.ejrs.2016.12.006. Impact Factor: 1.74
26. S. Selvakumar, N. Chandrasekar, S. Kaliraj, N. S. Magesh (2016) Salinization of shallow aquifer in the Karamaniyar river basin, Southern India. Environ Dev Sustain (Springer Group & SCI journal).DOI: 10.1007/s10668-017-9937-5.
27. R.A. Bheeroo, N. Chandrasekar, S. Kaliraj, N.S. Magesh (2016) Shoreline change rate and erosion risk assessment along the Trou Aux Biches–Mont Choisy beach on the northwest coast of Mauritius using GIS-DSAS technique. Earth Sciences (Springer Group & SCI journal). DOI 10.1007/s12665-016-5311-4.
28. Yamini Choutukuri, V. Hema Sailaja, V. K. Malar, S. Kaliraj (2015) Land Resources evaluation in the Theni Administrative block of Theni district, Tamil Nadu, India, using Remote sensing and GIS. International Journal of Remote sensing and GIS. ISSN: 2277–9051. Vol. 4 (1), Page: 23- 40.
29. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2015) Evaluation of multiple environmental factors for site-specific groundwater recharge structures in the Vaigai River upper basin, Tamil Nadu, India using GIS based Weighted Overlay Analysis. Environmental Earth Sciences (Springer Group & SCI journal). DOI: 10.1007/s12665-015-4384-9. Impact Factor: 1.76
30. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2014) Morphometry analysis of the River Thamirabarani sub-basin in Kanyakumari District, South west coast of Tamil Nadu, India, using remote sensing and GIS. Environmental Earth Sciences (Springer Group & SCI journal) ISSN: 1866-6299. Vol. 73(11). Page: 7375 –7401. DOI: 10.1007/s12665-014-3914-1. Impact Factor: 1.765
31. S. Kaliraj, N. Chandrasekar, T. Simon Peter, S. Selvakumar, N. S. Magesh (2014) Mapping of coastal aquifer vulnerable zone in the south west coast of Kanyakumari, South India, using GIS-based DRASTIC model. Environmental Monitoring and Assessment (Springer Group & SCI journal) ISSN: 1573-2959. DOI 10.1007/s10661-014-4073-2. Impact Factor: 1.679
32. S. Selvakumar, K. Ramkumar, N. Chandrasekar, N. S. Magesh, S. Kaliraj (2014) Groundwater quality and its suitability for drinking and irrigational use in the Southern Tiruchirappalli district, Tamil Nadu, India. Applied Water Science (Springer Group Journal) ISSN: 2190-5495. DOI 10.1007/s13201-014-0256-9.
33. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2014) Multispectral image analysis of suspended sediment concentration along the Southern coast of Kanyakumari, Tamil Nadu, India. Journal of Coastal Sciences. ISSN 2348 – 6740. Vol. 1 (1). Page: 63-71.
34. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2013) Evaluation of coastal erosion and accretion process along the South-West coast of Kanyakumari, Tamil nadu using Geospatial techniques. Arabian Journal of Geosciences (Springer Group & SCI journal). ISSN: 1866-7538. DOI: 10.1007/s12517-013-1216-7. Impact Factor: 1.152.
35. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2013) Impacts of Wave energy and Littoral currents on Shoreline erosion /accretion along the South-West Coast of Kanyakumari, Tamil nadu using DSAS and Geospatial Technology. Environmental Earth Sciences (Springer Group & SCI journal) DOI: 10.1007/s12665-013-2845-6. ISSN: 1866-6299. Impact Factor: 1.572.
36. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2012) Identification of potential groundwater recharge zones in R. Vaigai upper basin, TN using GIS based Analytical Hierarchical Process (AHP) technique. Arabian Journal of Geosciences (Springer Group & SCI journal). DOI:10.1007/s12517-013-0849-x. ISSN 1866-7538. Impact Factor: 1.152.
37. N.S. Magesh, N. Chandrasekar, S. Kaliraj (2013) Mapping of heavy mineral placers through marine GIS expert system: a case study in Kalaignanapuram coastal stretch, southeast coast of Tamil Nadu, India. Arabian Journal of Geosciences (Springer Group & SCI journal). DOI: 10.1007/s12517-013-1193-x. ISSN: 1866-7538. Impact Factor: 1.152.
38. S. Kaliraj, S. Muthu Meenakshi, V.K. Malar (2012) Application of Remote sensing in Forest cover change detection using Geo statistical change detection matrices – A case study in Devampatti RF, Tamil Nadu. Nature Environment & Pollution Technology (International Quarterly Scientific Journal). ISSN: 0972 – 6268. Vol.11, No.2, Page: 261-269. Impact Factor: 0.08.
39. S. Kaliraj, N. Chandrasekar (2012) Geo-processing Modelling on CVI: Assessment of vulnerable zone in SW coast, Tamilnadu, India. International Journal of Earth Sciences and Engineering. ISSN: 0974-5904. Vol.5, No. 5. Page: 1138-1147. Impact Factor: 0.14.
40. S. Kaliraj, N. Chandrasekar (2012) Spectral Recognition Techniques and MLC of IRS P6 LISS III image for Coastal Landforms Extraction in SW Coast of Tamil Nadu. Bonfring International Journal of Advances in Image Processing. ISSN: 2250-1053. Vol. 2 (2). Page: 1 – 7.
41. S. Kaliraj, V.K. Malar (2012) Geospatial analysis to assess the potential site for Coal based Thermal Power station in Gujarat, India. Journal of Advances in Applied Science Research. ISSN: 0976-8610. Vol.3, No. 3, Page: 1554-1562.
42. S. Kaliraj, N. Chandrasekar, N.S. Magesh (2012) Stochastic Modelling to Identify Spatial and Temporal Changes in Rainfall Pattern Along the South West Coast of Kanyakumari District, India. Bonfring International Journal of Industrial Engineering and Management Science. ISSN 2277 – 5056. Vol. 2 (1), Page: 16-19.
43. N.S. Magesh, N. Chandrasekar, S. Kaliraj (2012) A GIS based Automated Extraction Tool for the Analysis of Basin Morphometry. Bonfring International Journal of Industrial Engineering and Management Science. ISSN 2277 – 5056. Vol. 2 (1), Page: 32-35.
44. N.S. Magesh, N. Chandrasekar, S. Kaliraj (2014) Mapping the coastal geomorphological landforms through Aster DEM and Landsat data – a case study between Tuticorin - Vembar coastal stretch, southeast coast of India. Journal of Coastal Sciences. ISSN 2348 – 6740. Vol. 1 (1). Page: 01 - 05.
45. N.S. Magesh, L .I. Chandralekha, N. Chandrasekar, S. Kaliraj (2014) Influence of tidal cycle on heavy minerals variation in the Kottilpadu beach, Kanyakumari coast, Tamil Nadu, India. Journal of Coastal Sciences. ISSN 2348 – 6740. Vol. 1 (1). Page: 15 - 21.
46. T. Simon Peter, N. Chandrasekar, S. Selvakumar, S. Kaliraj, N.S. Magesh, Y. Srinivas (2014) Tidal effects on estuarine water quality through a sandy marine beach: a case study in Vembar estuary, southeast coast of Tamil Nadu, India. Journal of Coastal Sciences. ISSN 2348 – 6740. Vol. 1 (1). Page: 06 - 14.

Research reports/Conference proceedings/presentations

1. S. Kaliraj, Manish Parmer, A.S. Rajawat (2021) "Desertification Vulnerability Assessment in humid tropics and sub-tropical regions of India using Remote sensing & GIS techniques" International Conference on “Challenges of Disaster: Vulnerability, Adaptation and Resilience”, Jamia Millia Islamia, New Delhi, March 02-03, 2021.
2. S. Kaliraj, N. Chandrasekar, K.K. Ramachandran (2018) Groundwater Management Modelling for Watershed Development Agencies: an evaluation of multiple geo, environment, and climatic factors for site-specific runoff harvesting structures – Palakkad District, Kerala". Paper presented in International Conference on Impact of Climate Change on Water Resources, Centre for Geoinformatics, Periyar University, Salem, July 2018.
3. S. Kaliraj, N. Chandrasekar, K. K. Ramachandran (2017) Satellite Remote sensing of Phytoplankton (Chl-a) biomass variability in the Gulf of Mannar, South India. 3rd International Conference on Environmental and Ecology (ICEE - 2017), St. Xavier's College, Ranji on 27 - 29 March 2017.
4. S. Kaliraj, N. Chandrasekar, K. K. Ramachandran (2016) Coastal Geomorphological vulnerability and mapping in the south-west coast of Kanyakumari District, South India, using Remote sensing and GIS technology. 29th IGI Conference, University of Calcutta, Kolkata, 24 - 27, November 2016.
5. S. Kaliraj, N. Chandrasekar, K. K. Ramachandran (2017) Quantitative analysis of rainfall induced swift surface runoff in the River Thamirabarani sub-basin in Kanyakumari district, South India using Remote sensing and GIS in the National Symposium on “Recent Advances in Remote Sensing and GIS with Special Emphasis on Mountain Ecosystems” & Annual Conventions of Indian Society of Remote Sensing & Indian Society of Geomatics held during December 7 - 9, 2016 at Dehradun, India.
6. B.R. Tripathy, S. Kaliraj, K.K. Ramachan, G.S. Pippal (2017) Assessing relative coastal vulnerability to sea level rise along the Thiruvananthapuram coast, Kerala using GIS based CVI model. Proceedings of the Third Disaster, Risk and Vulnerability Conference, Department of Geology, University of Kerala on 29 to 31 March 2017
7. S. Kaliraj, N. Chandrasekar, K. K. Ramachandran (2016) The research paper entitled “Mapping of coastal aquifer vulnerability to seawater intrusion of Kanyakumari Coast, SW India using GIS based GALDIT model” is presented in International Conference on Environmental Sustainability for Food Security (ENFOSE-2016) held at Sree Ayyappa College for Women, Nagercoil, Tamil Nadu on 22 – 24, September, 2016.
8. S. Kaliraj (2014) Evaluation of Surface Runoff and its impacts using GIS based SCS-CN model – a case study of Thamirabarani basin, Kanyakumari, Tamil Nadu” is presented in National Seminar on “Participatory Disaster Management” held at Dept of Geography, Bharathiar University Arts and Science College, Gudalur, The Nilgiris, Tamil Nadu on 13th Sep, 2014.
9. S. Kaliraj (2014) Geospatial technological approach for Water Resources development and conservation planning – a case study of Theni Municipality in Tamil Nadu” is presented in National Conference on Disaster Management: Issues and Challenges held at Dept of Geography, Tourism & Travel Management, Madras Christian College, Chennai – 59 on 28th February, 2014.
10. S. Kaliraj (2016) Mapping of coastal aquifer vulnerability to seawater intrusion of Kanyakumari Coast, SW India using GIS based GALDIT model” is presented in International Conference on Environmental Sustainability for Food Security (ENFOSE-2016) held at Sree Ayyappa College for Women, Nagercoil, Tamil Nadu on 22 – 24, September, 2016.
11. S. Poongodi, R. Rajkumar, R. Sujarose, S. Kaliraj “Geo-spatial Analysis of Soil Erosion Mapping in Upper Vaigai Basin using GIS based RUSLE Model” Proceeding of the 4th International conference on Hydrology and Watershed Management hosted by Centre for Water Resources, JNTU, Hyderabad, Oct. 29 –Nov. 01, 2014, Allied Publishers Pvt. Ltd. New Delhi, ISBN: 978-81-8424-952-1.
12. N. Chandrasekar, S. Kaliraj “Coastal Erosion and Accretion Assessment and Inundation Risk zone mapping along SW coast of Kanyakumari, Tamil nadu, India” International conference on Geological Engineering hosted by University of Malaya, Kuala Lampur, Malaysia on Jan, 2013 published by AUN-SEED Group, Malaysia. ISBN: 978-967-0380-23-0.
13. S. Kaliraj, K. Mahendran, N. Chandrasekar “Maximum Likelihood Classifier and Digital Image Processing Techniques for extraction of Coastal Landform features from the Indian Remote Sensing Satellite (IRS P6) LISS III imagery”. National Conference on Signal and Image Processing hosted by Dept of Computer Science and Applications, Gandhigram Rural Institute, Gandhigram on Feb.04-05, 2012, Excel India Publishers, New Delhi, ISBN : 978-93-81361-90-0.
14. S. Kaliraj (2012) the Geo-processing model on Analytical Hierarchical Process (AHP) to identify Ground Water Artificial Recharge Zones in River Vaigai upper basin, Tamil Nadu” is presented in National Seminar on “Geo-spatial Technology for Resource Evaluation & Management” at School of Earth & Atmospheric Sciences, M.K. University, Madurai on February,17 - 18, 2012.
15. S. Kaliraj (2012) Stochastic modelling of Spatial and Temporal changes in Rainfall pattern along the South West coast of Tamil Nadu, India” is presented in National Seminar on “Geospatial Technology developments in Natural Resource & Disaster management” held at Centre for GeoTechnology, M.S. University, Tirunelveli, on Feb. 23 - 24, 2012.
16. S. Kaliraj, N. Chandrasekar “Architecting the Geo-processing model on AHP to identify Ground water artificial recharge zones in R. Vaigai upper basin, Tamil Nadu” published in the National seminar on Geospatial Technology for Resource Evaluation and Management 17 & 18, Feb, 2012, published by School of Earth & Atmospheric Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu.
17. S. Kaliraj (2011) Geo Statistical Analysis for Soil Loss Assessment Modelling – Using Spatial Analyst Tool in ArcGIS 9.2” is presented in National Seminar on “Geo Spatial Technology on Natural Resource Management” held at Department of Remote sensing, Madurai Kamaraj University, Madurai on March, 23 - 24, 2011.
18. S. Kaliraj (2011) Biodiversity Changes Inventory Techniques in Remote sensing” is presented in the International Conference on “Environmental Sustainability: Challenges and Strategies” conducted by Department of History, Fatima College (Autonomous), Madurai on Feb, 17 - 18, 2011.
19. S. Kaliraj (2011) Generation of GIS based Automatic Coastal Vulnerability Index model – A case study on SW coast of Kanyakumari”, is presented in National Conference on “Coastal Dynamics & Geomorphology” hosted by Indian Institute of Geomorphologists (IGI) in Dept. of Geology, Anna University, Chennai, on October 19 - 22, 2011.
20. S. Kaliraj, C. Balasubramani “An Investigation on Geo-Spatial features for Water resources conservation and development – A Remote sensing & Geo Information Technological approach”. XXX th INCA International Congress, Dehradun. 10th to 12th, November, 2010. Indian National Cartographic Association, Dehradun.
21. S. Kaliraj (2010) The research paper entitled “A Role of Remote sensing & GIS in Land use/ Land Cover Analysis – A case study on Theni Block, Tamil Nadu” is presented in UGC sponsored National Seminar on “Problems & Prospects in Habitat Development” held at Rural Technology Centre, Gandhigram University, Dindigul on March 4 - 5, 2010.
22. S. Kaliraj (2010) Evaluation of Suitable Site for Coal Based Thermal Power Station in Rajpardi Mining Area, Gujarat – A Geo Spatial Technological Approach” is presented in UGC – UPE sponsored National Seminar on “Trends in Geospatial data Analysis for Resource and Envt. Management” held at School of Earth & Atmospheric Sciences, Madurai Kamaraj University, Madurai on March, 29 - 30, 2010.
23. S. Kaliraj (2010) Investigation on Accuracies of RTK GPS survey for Topographical Mapping - A Civil Engineering Approach” is presented in UGC – UPE sponsored National Seminar on “Trends in Geospatial data Analysis for Resource and Envt. Management” held at School of Earth & Atmospheric Sciences, Madurai Kamaraj University, Madurai on March, 29 - 30 2010.
24. S. Kaliraj, S. Selvaraj “Water resource Development and Conservation Action plan for Theni Allinagaram Municipality of Theni district, Tamil Nadu using Remote sensing and GIS Technology” National Water Seminar hosted by CARI, Port Blair, AN Islands on January 29 - 30, 2009. http://www.eha-health.org/index.php/resources/catview/89-presentations/91-national-water-seminar.html
25. S. Kaliraj (2009) Water resource conservation and development action plan for Theni Municipality region using Remote sensing and GIS” is presented in National Water Seminar held at CARI, Port Blair, Andaman Nicobar Islands on Jan, 29 -30, 2009.
26. S. Kaliraj (2009) The research paper entitled “An overview of Geospatial Technology for Rural Health Information System” is presented in National Seminar on “People’s participation on Rural Development” held at School of Economics, M. K. University, Madurai on Jan, 22 – 23, 2009.
27. S. Kaliraj (2008) An approach of Remote sensing and GIS in disease mapping” is presented in National Seminar on “Climatic Changes and Emerging Diseases” hosted by School of Earth & Atmospheric Sciences, M. K. University, Madurai on Dec , 12 – 13, 2008.

PI in Last Ten Years onwards:

1. Preparation of Integrated Coastal Zone Management Plan for Lakshadweep, Islands, March 2002 to December 2006, Ministry of Environment and Forests, Government of India.
2. Coastal Erosion Studies in Androth, Kalpeni and Minicoy islands, UT of Lakshadweep,  March 2002 to March 2005, Department of Science & Technology, UT Lakshadweep, Government of India.
3. Impact of Tsunami on the Kerala coast and an initiative for development of management plan for the region. March 2005 to March 2006, Department of Science and Technology, Government of India.
4. Studies on shore protection structure in the Lakshadweep islands, March 2007 to March 2009, Department of Science & Technology, UT Lakshadweep, Government of India.
5. Spatio temporal shore changes during Holocene and tracing the evolutionary history of the Ashtamudi estuary, southern Kerala (DST-78), February 2009 to February 2012, Department of Science and Technology, Government of India.
6. Preparation of Integrated Island Management Plan for Lakshadweep Islands.
7. Tracing source to sink link in placer deposit formation of Kerala.
8. Tsunami and Storm Surge Inundation Modeling and Mapping for the Coasts of Kerala, Karnataka and Lakshadweep
9. Coastal Engineering Strategies for Kerala – a pilot project

About:

Dr.Prakash is a Marine Scientist by profession. He retired as Scientist-G and Group Head, Coastal Processes Group from National Centre for Earth Science Studies, Ministry of Earth Science, GOI, Trivandrum in July, 2019. He also held highest position as Director during 2016-17. At present he is working as Senior Consultant in the Coastal Processes Group. He has over 35 years’ of research experience in the Coastal and Island areas. His research interests are in Beach and Coastal Processes including the Management aspects. He has extensively worked on coastal placer deposits of SW coast of India for sustainable beach mining through sediment budgeting study. Mr.Prakash has also worked in the coral islands of Lakshadweep on coastal erosion, coastal regulations including the preparation of management plans. He also lead a team to the Lakshadweep Islands for the preparation of Integrated Island Management Plan (IIMP). He has participated in many cruises including the deep-sea research vessel `ORV Sagara Kanya’ of the Ministry of Earth Sciences. He has undergone training at the International Ocean Institute at Malta on the ‘Management and Conservation of Marine Resources’. He has successfully completed many research projects as Principal Investigator including many consultancy projects.

Dr. T. N. Prakash made significant contributions initially to the selective concentration of placer minerals at Chavara in the Neendkara-Kayamkulam coast as part of his doctoral work. Subsequently, on joining as Scientist in the NCESS, his main focus of study has been on beach and coastal processes through a systematic measurement in beach and offshore region including the wave energy distribution and its relation to placer distribution of SW coast of India. The results of wave energy and placer concentration showed good correspondence. His sediment budgeting studies along the placer dominated SW coast are the first few such studies in the country to bring the ill effects of commercial mining. Through this study a sustainable exploitation is suggested on a well-thought-out plan` to ensure the optimum recovery of the mineral wealth with minimum environmental impacts. The two important aspects considered for a long term strategy for the placer development are (i) How much mineral accumulates on the beaches or near shore` every year and how much of it can be mined without causing the degradation of coast and, (ii) How can the offshore and inland deposits be mined with minimum environmental damages and with least socio-economic problems. Further the factors responsible for the depletion of heavy mineral content at Chavara coast are identified and remedial measures to prevent reduction are recommended. In the nutshell a sustainable exploitation of placer mineral resources should be based on ICZM Plan and sediment budgeting approach. The sediment budgeting study carried out by the National Centre for Earth Science Studies, Thiruvananthapuram for the Indian Rare Earths Ltd., and KMML mining sites of Neendakara-Kayamkulam coast` in Kerala stands out as singular exception.

His work in the estuarine studies is one of the largest joint efforts in the country involving an unprecedented quantity of scientific data on social, economic, fisheries, physical, environmental, chemical and planning aspects. The results of this study have helped us to put up an Asthmudi Management Plan for the sustainable development of the estuary. We have addressed 8 key initiatives in the plan viz., pollution source identification, demarcation of conservation area, stopping of reclamation, curtailing sand mining, upgrade the sanitation facilities in port, phasing of coir retting, etc., Another work taken up is on the evolution of the estuary during Quaternary using different sediment proxies such as variation in granulometry, clay mineralogy, geochemistry, dating, qualitative and quantitative studies of faunal assemblages, etc., The results had indicated the spatio-temporal shore changes and transgression/regression cycles even up to 10 to 15 km inland during the last 25-30ky resulting in the formation of barrier beach system and coast parallel lagoons. The study has brought out the evolution history of this region during Holocene period.His work in Lakshadweep islands is on the preparation of Integrated Coastal Zone Management Plan (ICZMP), Integrated Island Management Plan (IIMP) and generation of baseline data on erosion/accretion in the 10 inhabited islands of Lakshadweep is the significant scientific contributions for the Lakshadweep. The results of this study have further translated into many actions plan for the overall development of the islands. Another significant work carried out is on the demarcation of HTL, LTL and preparation of status report for different users in the country. Dr. Prakash’s research results were published in a range of national/international journals including two field guide book and a book.

Education:

Professional career:

Areas of Interests:

Beach and Coastal Processes, Placer Mineral Deposits, Coastal Evolution and Anthropocene.

Membership of Professional Bodies:

1. Life Member, Geological Society of India (Since 1983).
2. Member, Indian  Society of Remote Sensing, Ahmedabad (Since 2008).
3. Member, Referees’ Panel, Indian Journal of Marine Sciences.
4. Corresponding Member, IGCP-274 on SLR during Quaternary period (1991-1992).
5. Member, International Association of Sedimentologist, Belgium (since 2011).
6. Member, Current Science, Indian Academy of Sciences, Bangalore (Since 2011).

Training Programmes:

1. Onboard training in the research vessel `ORV Sagara Kanya’ of Dept. of Ocean Development, Govt. of India in the central Indian Ocean (1985).
2. Management and Conservation of Marine Resources (1987), International Ocean Institute, Malta.
3. Digital image processing technique with special reference to coastalsystems, Dec, 1992 at  Regional Remote Sensing Service Centre, Dept. of Space, Govt. of India, Bangalore.
4. Awareness workshop on Accelerator Mass Spectrometry at Institute of Physics, Bhuvaneshwar during August 10-14. 1998.
5. Training on Digital Image Processing Techniques at SAC, Ahmedbad during July 1999.
6. Usage of Sophisticated Analytical Facility in Inter institutional collaborative project, University of Waikato, New Zealand, 2001.