Debasis Sengupta

           Assistant Professor 
 
 
 

           Office

  Email:     dsen@caos.iisc.ernet.in 
  Phone:   +91-80-360-0450 
                +91-80-309-2505 
  Fax:       +91-80-360-0865 

 
            Mailing Address
  Centre for Atmospheric and Oceanic Sciences 
  Indian Institute of Science 
  Bangalore 
  India 

 
 
 

 
  Research interests
  Publications

 
 
 
 

       Research interests

  •   Oceanography 
  •   Physics of the Indian Ocean 
  •   Tropical Ocean-Atmosphere Interaction 
  •   Predictability of Ocean and Climate
  •   Ocean modellling 

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      Publications

         Refereed publications:

  1. Prahalad, Y. S. and D. Sengupta (1986): Barotropic planetary waves on a random bottom.  Wave Motion, 8, 407. 
  2. Fernades, A. A., Y. S. Prahalad and D. Sengupta (1989): Scattering of Rossby and Poincare waves off rough lateral boundaries. Dynamics Atmos. Ocean., 14, 41. 
  3. Sengupta, D., L. I. Piterbarg and G. M. Reznik (1990): Topographic Rossby waves on random relief.  Oceanography, 30(4), 70. 
  4. Sengupta, D., L. I .Piterbarg and G. M. Reznik (1993): Localisation of topographic Rossby waves over random relief. Dynamics Atmos. Ocean, 17, 1. 
  5. Sengupta, D. (1994): Localisation of Rossby waves over random topography: Two layer ocean.  J. Phys. Oceanography, 24, 1065. 
  6. Vinayachandran, P. N., S. R. Shetye, D. Sengupta and S. Gadgil (1996): Forcing mechanisms of the Bay of Bengal circulation. Current Science, 71(10), 753. 
  7. Goswami, B. N., K. Rajendran and D. Senupta (1997): Source of seasonality and scale dependence of predictability in a coupled ocean-atmosphere model. Mon. Weather. Rev., 125, 846. 
  8. Goswami. B. N., D. Sengupta and G. Suresh Kumar (1998): Intraseasonal oscillations and interannual variability of surface winds over the Indian monsoon region. Proc. Indian Acad. Sci. (Earth Planet. Sci.), 107, 1, pp 45-64. 
  9. Premkumar, K., M. Ravichandran, S.R. Kalsi, D. Sengupta, S. Gadgil  (1999): First results from a new observational system over the Indian Seas.  Current Science,  78, 323.
  10. Bhat G. S., S. Gadgil, P. V. Hareesh Kumar, S. R. Kalsi, P. Madhusoodanan, V. S. N. Murty, C. V. K. Prasada Rao, V. Ramesh Babu, L. V. G. Rao, R. R. Rao, M. Ravichandran, K. G. Reddy, P. Sanjeeva Rao, D. Sengupta, D. R. Sikka, J. Swain and P. N. Vinayachandran (2000): BOBMEX - The Bay of Bengal Monsoon Experiment. Submitted. 
  11. Sengupta, D.,  and M. Ravichandran (2000): Oscillations of Bay of Bengal sea surface temperature during the 1998 summer monsoon. Submitted 
  12. Sengupta, D., R. Senan and B. N. Goswami  (2001): Origin of intraseasonal variability of circulation in the tropical central Indian Ocean. To appear in Geophysical Research Letters. [download postscript file]

          Other publications:

  1. Prakash, L. H., D. Sengupta, G. Iyengar and A. K. Bohra 1991: Ocean feedback to monsoon rains in northern Bay of Bengal.  Implications for the medium range weather forecasts.  NCMRWF Tech. Report, 1/91. 
  2. Sengupta, D., P. Joseph, R. Senan and G. Suresh Kumar (1999): Validation of NCEP daily surface winds over the north Indian ocean. CAOS Report 99AS1. 
  3. Sengupta, D., R. Senan, G. Suresh Kumar and C. Kalyani Devasena  (1999): Intraseasonal variability of the northeast Indian Ocean circulation in an ocean model. CAOS Report 99AS2. 

 

 Conference Proceedings:

  1. Sengupta, D. and Y. S. Prahalad 1985: Planetary wave propagation across a rough ridge.  Proc. 29th International Conf. Theor. Appl. Mech,  II-8, ISTAM. 
  2. Sengupta, D. and R. Mahadevan 1987: Bispectra of ocean surface waves.  Proc. III Indian Conf. Ocean Engg.,  A-153. 
  3. Goswami, B. N., K. Rajendran and D. Sengupta 1995: On the seasonality of the predictability of ENSO.  Proc. Intl. Sci. Conf. on Trop. Ocean Global Atmos. (TOGA) Programme, Vol. II  WCRP -91- WMO/TD No. 717. p710-714. 
  4. Sengupta, D. (1998): Intraseasonal variability of currents south of Sri Lanka in a GCM. IOCINDIO  Regional  Workhop on Trop. Ocean and Climate. (November 1998, Bangalore). 
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