Photo of Unnikrishna Warrier C

Dr. Unnikrishna Warrier C

Principal Scientist & Head, Isotope Hydrology Division

Office No 0495-3251861
Mobile 9446573670
Email warrier@cwrdm.org

Educational Profile

  • D.Sc.  (Geology),  1995, Osaka City University, Japan
  • M.Phil. (Geology),  1991, University of Madras, Chennai
  • M.Sc. (Geology),  1990; University of Madras, Chennai

Career Details

  • 2013-Present Principal Scientist, CWRDM
  • 2008- 2013  Scientist E1, CWRDM
  • 2003-2008 Scientist C, CWRDM.
  • 1998-2003  Scientist B,  CWRDM

Awards

  • University merit Scholarship (University of Kerala) during 1985-1988
  • MONBUSHO Research Fellowship Award from the Ministry of Science, Education and Culture (Japan) for Doctoral programme
  • Special Research Award of Osaka City University for the year 1992-1993
  • Visiting Professor at Centre for interdisciplinary Investigation on Environment Management and Development (CIIEMAD) National Polytechnic Institute (IPN) Mexico

Memberships

  • Life member of Geological Society of India (GSI)
  • Life member of Indian Society of Applied Geochemist (ISAG)
  • Life member of National Association for Application of Radioisotopes and Radiation in Industry  (NAARRI)
  • Editor, International Journal of Advanced Technology in Engineering and Science (IJATES)

Research Interests

  • Isotope Hydrology: Environmental stable and radio isotope (dD, d18O and 3H) geochemistry of precipitation to study monsoon characterization.
  • Isotope Geochemistry: Environmental isotope  investigation ((dD, d18O and 137Cs) of water and sediment core samples  collected from lake to understand the rate  and pattern of sedimentation and also the geochemistry of lake water

Publications

Journal Papers
    • Shahul Hameed, A., Resmi T R., Suraj, S., Unnikrishnan Warrier, C., Sudheesh, M., Deshpande, R.D., 2015. Isotopic characterization and mass balance reveals groundwater recharge pattern in Chaliyar River basin, Kerala, India. Journal of Hydrology: Regional Studies, Volume 4, pp. 48–58.
    • Unnikrishnan Warrier, C., Praveen Babu, M., Sudheesh, M. and Deshpande, R.D., 2015., Studies on Stable Isotopic Composition of Daily Rainfall from Kozhikode, Kerala, India’, DOI: 10.1080/10256016.2016.1103238
    • Unnikrishnan Warrier, C. and Manjula, P., 2014. River-Groundwater Interaction of a Tropical Sub Basin of Bharatapuzha, Kerala, India. International Journal of Advanced Technology in Engineering and Science, Vol.2 (7), pp.382-393
    • Unnikrishnan Warrier, C. and Manjula, P., 2014. Morphometric Analysis of Thuthapuzha Sub Basin, Kerala, India, International Research Journal of Sustainable Science and Engineering, Vol.2 (7), pp.1-10
    • Unnikrishnan Warrier, C., Praveen Babu, M. and Manjula, P. and Shahul Hameed, A., 2013. Spatial and Temporal Variations of Natural Tritium in Precipitation of Southern India. Current Science, Vol. 105, pp. 242- 248
    • UNNIKRISHNAN WARRIER, C., PRAVEEN BABU, M. (2012): A study on the spatial variations in stable isotopic composition of precipitation in a semiarid region of southern India. Hydrol. Process. Vol. 26, pp 3791-3799.
    • UNNIKRISHNAN WARRIER, C., PRAVEEN BABU, M. (2011): A comparative study on isotopic composition of precipitation in wet tropic and semi-arid stations across southern India. J. Earth Syst. Sci., pp. 1085–1094
    • Unnikrishnan Warrier, C., Praveen Babu, M., Manjula, P., Velayudhan, K.T., Shahul Hameed, A. and Vasu, K., 2010. Isotopic Characterization of Dual Monsoon Precipitation-Evidence from Kerala, India. Current Science, Vol. 98, pp.1487-1495
    • CHIDAMBARAM, S., PRASANNA, M.V., RAMANATHAN, A. L., VASU, K., SHAHUL HAMEED, A., UNNIKRISHNAN WARRIER,C., SRINIVASAMOORTHY, MANIVANNAN, R., TIRUMALESH, K., ANANTHAN, P. AND JOHNSONBABU, G. (2009): A study on the factors affecting the stable isotopic composition in precipitation of Tamil Nadu, India, Hydrological Processes, Vol.23, 1729-1800.
    • SHAHUL HAMEED,A., UNNIKRISHNAN WARRIER, C., VELAYUDHAN, K.T. and SURAJ, S. (2009) : Hydraulic continuity between groundwater sources in the Malabar region of Kerala-Evidence from stable isotopes and Ion chemistry. In Recent trends in water research Hydrochemical and hydrological Perspective. (eds. Chidambaram,S. Ramanathan, A.L., Shivanna, K and Arthur James) I.K. International Publishing House Pvt. Ltd. New Delhi. pp.31-40
    • Unnikrishnan Warrier, C., Shahul Hameed, A., Velayudhan, K.T., Manjula, P. and Vasu, K., 2009. Estimation of Sedimentation Rate in Chilika Lake, Orissa using Environmental 210pb Isotope Systematics. Journal of Applied Geochemistry, Vol. 11, pp. 102-110
    • YOSHIDA, M., KAGAMI, H. & UNNIKRISHNAN WARRIER ,C. (1999): Neodymium model ages for Eastern Ghats and Lutzow-Holm Bay: Constraints on isotopic provinces in India, Antarctica sector of East Gondwana. Gondwana Research Group memoir, Eastern Ghats Granulites, No.5, 161-172.
    • UNNIKRISHNAN WARRIER, C. (1997): Isotopic signature for Pan-African rejuvenation in the Kerala Khondalite Belt, southern India: Implication for East Gondwana reassembly, J. Geol. Soc. India., v. 50, p 179-190.
    • UNNIKRISHNAN WARRIER, C., SANTOSH, M. & YOSHIDA, M. (1995): First report of Pan-African Sm-Nd and Rb-Sr mineral isochron ages of regional charnockites of southern India. Geol. Mag., v.132, p. 253-260.
    • UNNIKRISHNAN WARRIER, C., YOSHIDA, M., KAGAMI, H. & SANTOSH, M. (1995): Sm-Nd and Rb-Sr mineral isochron ages of Madras charnockite, and an evaluation of garnet geochronology in granulites. Geol. Soc. India Memoir 34, India and Antarctica during the Precambrian. P. 399-412.
    • UNNIKRISHNAN WARRIER, C., YOSHIDA, M., KAGAMI, H. & SANTOSH, M. (1993): geochronological constraints on granulite formation in southern India: Implication for East Gondwana reassembly. J. Osaka City Univ., v.36, 109-121.
Conference Proceedings
    • Ashitha M K, Rajeesh U, Pragath M, Girish Gopinath, Surendran U and UnnikrishnanWarrier C (2014). Physico-Chemical and Textural Characteristics of Kodai Lake Sediments, Proceedings of International Symposium on Integrated Water Resources Management (IWRM-2014) , February 19-21,2014,Vol.2, pp 557-562, ISBN:978-81-8424-906-4.
    • Rajeesh U, Pragath M, Girish Gopinath, Surendran U and UnnikrishnanWarrier C (2014). Elucidation of Physico-Chemical Parameters and Nutrient Load of Sediments in Pookot Lake, Wayanad, Proceedings of International Symposium on Integrated Water Resources Management (IWRM-2014) , February 19-21,2014, Vol.1, pp 731-737, ISBN:978-81-8424-906-4.
    • Unnikrishnan Warrier C. and Manjula, P., 2014. Hydrochemical Characterisation of a Tropical Sub Basin of Bharathapuzha, Kerala, India, International Symposium on Integrated Water Resources Management, CWRDM (February 19-21, 2014), Abs.Vol.p.97
    • Unnikrishnan Warrier, C. and Manjula, P., 2012. Tracing river-groundwater Interaction of a Tropical Sub Basin of Bharathapuzha, Kerala, National Seminar on Applications of Isotopes and Radiation Technology for Societal Benefits (AIRTS-2012) June 21-23, 2012, Bangalore University. Abs.Vol. p 43.
    • Manjula, P. and Unnikrishnan Warrier, C. (2010), Morphometric analysis of Thuthapuzha Sub Basin of Bharathapuzha, Young Environmental Researchers Conference, CWRDM (March 22-23, 2010) Abs. p 5
    • Soorya, V.C., Manjula, P., Unnikrishnan Warrier, C., Resmi, T. R. (2010), Geochemical Studies Of Groundwater In Thutha Sub Basin Of Bharathapuzha. Young Environmental Researchers Conference, CWRDM (March 22-23, 2010) Abs. Vol. p. 3
    • GUNNAR JACKS, MAHAAD SHAMMAS & UNNIKRISHNAN WARRIER (2008): Two costal aquifers in south asia and management options . In Global Groundwater Resources and Management (eds. Paliwal B.S). Selected Papers from The 33rd International Geological Congress, General Symposium: Hydrogeology, Oslo (Norway) Scientific Publishers (India), Jodhpur, pp. 133-140.
    • UNNIKRISHNAN WARRIER, C. (2007): Environmental isotope signatures of The largest Freshwater lake in Kerala. Proceedings of DAE-BRNS National symposium on Limnology (NSL-07) Venkataramani et. al.,(eds.) Arihant Computers and Printers Udaipur.pp.400-403
    • UNNIKRISHNAN WARRIER, C. (2005): Dating of groundwater: Introduction to 3H and 14C dating Techniques: Mthematical models in hydrogeochemistry ;Assesment of Groundwater quality and management (Ramanthan, A. L., Chidambaram and Ashok K. Keshari (eds)P.224-230
    • NARASIMHA PRASAD, N. B., UNNIKRISHNAN WARRIER, C. & RAJAGOPALAN, S. P. (2002): Investigation for community rural drinking water supply schemes-A case study. Water and Wastewater Perspectives of developing countries, Proceedings of the International Conference, WAPDEC. (Ed: Rama Devi & Naved Sharma) IWA Publishing. p. 269-276.
    • MASARU YOSHIDA, UNNIKRISHNAN WARRIER, C. & SANTOSH, M. (1994): Three major reworking events in the India-Sri lanka-Antarctica sector of East Gondwana, 9th International Gondwana Symp. (Hyderabad, India),v.2, p. 983-988.
Research Reports
Books and Monographs