R.D. Deshpande

Present Position: Scientist-SG and Chairman, Geosciences Division

Email: desh@prl.res.in

Telephone: +91-79-26314256

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Research Focus

Application of stable and radioactive isotopes to understand Hydro-geological and hydro-meteorological processes

Current Research Activities

Oxygen and hydrogen isotope fingerprinting of Indian hydrological cycle to understand:

1.     Atmospheric, surface and sub-surface processes within hydrological cycle

2.     Vapor source identification

3.     Study of hydro-meteorological processes using isotope characteristics of rain and vapor

4.     Spatio-temporal variation in vapor source for precipitation in Himalayan region

5.     Identification of groundwater zones with different recharge characteristics

6.     Study of surface water-groundwater interaction

7.     Study of river dynamics and contribution of various constituent components

Proposed Research

To evolve detailed understanding about:

1.     Evaporation from falling raindrops

2.     Sublimation, melting and refreezing of glaciers

3.     Cloud processes (degree of supersaturation, open-close system, convective vs. stratiform clouds)

4.     Vapor dynamics (lateral and vertical variation in vapor content and its isotopic composition)

Isotope Hydrology Laboratory

At present the laboratory is equipped with:

1.     Delta V plus IRMS with GasBench II for water isotope analyses in continuous flow mode

2.     Dual Inlet system on the same Delta V plus IRMS for other isotopes

3.     Fluoride Colorimeter and water analyses kit

Awards and Honors

1.     Fellow, Geological Society of India

2.     Fellow, Gujarat Science Academy

3.     K.V. Kulkarni Gold Medal, The M.S. University of Baroda, Vadodara

Review and Advisory Positions

1.     Expert, Training Mission in Isotope Hydrology, International Atomic Energy Agency (IAEA-Vienna), United Nations, Austria

2.     Member, Expert Committee in Earth and Atmospheric Sciences, for Early Career Research Award and National Post Doctoral Fellowship, DST-SERB, Govt. of India, New Delhi

3.     Member, Expert Committee in Earth and Atmospheric Sciences, for Women Scientist Scheme-A (WOS-A), DST, Govt. of India, New Delhi

4.     Member, Working Group, National Institute of Hydrology (NIH), Ministry of Water Resources, River Rejuvenation and Ganga Development, Govt. of India, Roorkee

5.     Member, Board of Studies in Geology, The M.S. University of Baroda, Vadodara

6.     Member, Research Development Committee, M.G. Science Institute, Ahmedabad

Other Activities

Science popularization and dissemination of scientific knowledge through mass communication

Selected Publications

  1. Anindya Sarkar, Arati Deshpande Mukherjee, M. K. Bera, B. Das, Navin Juyal, P. Morthekai, R. D. Deshpande, V. S. Shinde & L. S. Rao. Oxygen isotope in archaeological bioapatites from India: Implications to climate change and decline of Bronze Age Harappan civilization. Sci. Rep. (Nature), 6, 26555; doi: 10.1038/srep26555, (2016).
  2. Gh Jeelani, Rouf A. Shah, Noble Jacob & Rajendrakumar D. Deshpande. (2016): Estimation of snow and glacier melt contribution to Liddar stream in a mountainous catchment, western Himalaya: an isotopic approach, Isotopes in Environmental and Health Studies, DOI: 10.1080/10256016.2016.1186671, (2016).
  3. R.D. Deshpande, Medha Dave, Virendra Padhya, Hrishikesh Kumar and S.K. Gupta. Water Vapor source identification for daily rain events at Ahmedabad in semi-arid western India: wind trajectory analyses Meteorological Applications, 22, 754-762 (2015).
  4. Shahul Hameed, A., T. R. Resmi, S. Suraj, C. U. Warrier, M. Sudheesh, and R. D. Deshpande. Isotopic characterization and mass balance reveals groundwater recharge pattern in Chaliyar river basin, Kerala, India. Journal of Hydrology: Regional Studies, DOI: 10.1016/j.ejrh.2015.01.003. Volume 4, Part A, Pages 48-58, (2015).
  5. C. Unnikrishnan Warrier, M. Praveen Babu, M. Sudheesh and R. D. Deshpande. Studies on stable isotopic composition of daily rainfall from kozhikode, Kerala, India. Isotopes in Environmental and Health Studies, DOI: 10.1080/10256016.2016.1103238 (2015).
  6. R.D. Deshpande, P.M. Muraleedharan, Raj Laxmi Singh, Bhishm Kumar, M. Someshwar Rao, Medha Dave, K.U. Sivakumar, S.K. Gupta. Spatio-temporal distributions of δ18O, δD and salinity in the Arabian Sea: Identifying processes and controls. Marine Chemistry, 157, 144-161, (2013).
  7. R.D. Deshpande and S.K. Gupta. Groundwater helium: An indicator of active tectonic regions along Narmada River, central India. Chemical Geology, 344, 42-49, (2013).
  8. R.D. Deshpande, A.S. Maurya, R.C. Angasaria, Medha Dave, A.D. Shukla, N. Bhandari and S.K. Gupta. Recent falls of Megacryometeors in Western India: Isotopic Investigations.
    Current Science, 104 (6), 728-737, (2013).
  9. H. Achyuthan, R.D. Deshpande, M.S. Rao, Bhishm Kumar, T. Nallathambi, K. Shashi Kumar, R. Ramesh, P. Ramachandran, A.S. Maurya and S.K. Gupta. Spatio-temporal mixing inferred from water isotopes and salinity of surface waters in the Bay of Bengal. Marine Chemistry, 149, 51-62, (2013).
  10. R.D. Deshpande, A.S. Maurya, B. Kumar, A. Sarkar, and S.K. Gupta. Kinetic Fractionation of Water Isotopes during Liquid Condensation under Super-saturated Condition. Geochim. Cosmochim. Acta, 100, 60-72, (2013).
  11. R.D. Deshpande and S.K. Gupta. Oxygen and Hydrogen Isotopes in Hydrological Cycle: New Data from IWIN National Programme. Proc. Indian Natn. Sci. Acad, 78 (3), 321-331, (2012).
  12. A.S. Maurya, Miral Shah, R.D. Deshpande, R.M. Bhardwaj, A. Prasad and S.K. Gupta. Hydrograph separation and precipitation source identification using stable water isotopes and conductivity: River Ganga at Himalayan foothills. Hydrological Processes, 25, 1521-1530, (2011).
  13. R.D. Deshpande, A.S. Maurya, B. Kumar, A. Sarkar, and S.K. Gupta. Rain-Vapor Interaction and Vapor Source Identification using Stable Isotopes from Semi-Arid Western India. Journal of Geophysical Research, 115, D23311, doi:10.1029/2010JD014458.(2010).
  14. Meetu Agarwal, S.K. Gupta, R.D. Deshpande and M. G. Yadava. Helium, radon and radiocarbon studies on a regional aquifer system of North Gujarat-Cambay region, India. Chemical Geology, 228: 209-232, (2006).
  15. S.K. Gupta, R.D. Deshpande, S.K. Bhattacharya and R.A. Jani. Groundwater d18O and dD from Central Indian Peninsula: Influence of the Arabian Sea and the Bay of Bengal branches of summer monsoon. Journal of Hydrology, 303, 38-55, (2005).
  16. S.K. Gupta, R.D. Deshpande, Meetu Agarwal and B.R. Rawal. Origin of high fluoride in groundwater of North Gujarat-Cambay region, India. Hydrogeology Journal, 13, 596-605, (2005).
  17. S.K. Gupta, R.D. Deshpande. Groundwater Isotopic Investigations in India: What has been learned? Current Science, 89(5), 825-835, (2005).
  18. S.K. Gupta and R.D. Deshpande. Isotopes for Water Resource Management in India. Himalayan Geology, 26(1): 211-222, (2005).
  19. S.K. Gupta and R.D. Deshpande. An insight into the dynamics of Lake Nainital (Kumaun Himalaya, India) using stable isotope data. Hydrological Sciences Journal, 49(6), 1099-1113, (2004).
  20. S.K. Gupta, R.D. Deshpande. Water for India in 2050 - First Order Assessment of Available Options. Current Science, 86(9), 1216-1224, (2004).
  21. R.D. Deshpande, S.K. Bhattacharya, R.A. Jani and S.K. Gupta. Distribution of oxygen and hydrogen isotopes in shallow groundwater from southern India: influence of a dual monsoon system. Journal of Hydrology, 271, 226-239, (2003).
  22. S.K. Gupta and R.D. Deshpande. Origin of groundwater helium and temperature anomalies in the Cambay region of Gujarat, India. Chemical Geology, 198, 33-46, (2003).
  23. S.K. Gupta and R.D. Deshpande. Synoptic hydrology of India from the data of isotopes in precipitation. Current Science, 85(11), 1591-1595, (2003).