S. Ramachandran Associate Professor, Space and Atmospheric Sciences E-mail: ram@prl.res.in Telephone: +91-79-26314664

Research Interests

• Characterization of tropospheric and stratospheric aerosols
  
• Measurements and estimates of aerosol radiative effects
  
• Size segregated aerosol chemical composition using aerosol mass spectrometry
  
• Modeling the radiative and climate impact of aerosols
  
• Characteristics of clouds, aerosols in nano size range and aerosol-cloud interaction
  
• Satellite borne estimates of radiative forcing of aerosols and clouds

Research Group

Select Publications

1. Aerosol optical depth trends over different regions of India
   S. Ramachandran, Sumita Kedia and Rohit Srivastava
   Atmospheric Environment, 49, 338-347, 2012
2. Examination of aerosol distributions and radiative effects over the Bay of Bengal and the Arabian Sea region
   during ICARB using satellite data and a general circulation model
   R. Cherian, C. Venkataraman, S. Ramachandran, J. Quaas and Sumita Kedia
   Atmospheric Chemistry and Physics, 12, 1287-1305, 2012
3. Aerosol radiative effects over an urban location and a remote site in western India: Seasonal variability
   S. Ramachandran and Sumita Kedia
   Atmospheric Environment, 45, 7415-7422, 2011
4. Aerosol radiative forcing deduced from observations and models over an urban location and sensitivity to single scattering albedo
   Rohit Srivastava, S. Ramachandran, T.A. Rajesh and Sumita Kedia
   Atmospheric Environment, 45, 6163-6171, 2011
5. Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction
   Y. Shinozuka, J. Redemann, J.M. Livingston, P.B. Russell, A.D. Clarke, S.G. Howell,
   S. Freitag, N.T. O'Neill, E.A. Reid, R. Johnson, S. Ramachandran, C.S. McNaughton,
   V.N. Kapustin, V. Brekhovskikh, B.N. Holben and L.J.B. McArthur
   Atmospheric Chemistry and Physics, 11, 3673-3688, 2011
6. A methodology to estimate source-specific aerosol radiative forcing
   R. Sunder Raman, S. Ramachandran and Sumita Kedia
   Journal of Aerosol Science, 42, 305-320, 2011
7. Seasonal variations in aerosol characteristics over an urban location and a remote site in western India
   Sumita Kedia and S. Ramachandran
   Atmospheric Environment, 45, 2120-2128, 2011
8. Source apportionment of the ionic components in precipitation over an urban region in Western India
   R. Sunder Raman and S. Ramachandran
   Environmental Science and Pollution Research, 18, 212-225, 2011
9. Black carbon aerosols over an urban region: Radiative forcing and climate impact
   S. Ramachandran and Sumita Kedia
   Journal of Geophysical Research, 115, D10202, doi:10.1029/2009JD013560, 2010
10. Features of upper troposphere and lower stratosphere aerosols observed by lidar over Gadanki, a tropical Indian station
    P. Kulkarni, S. Ramachandran, Y. Bhavani Kumar, D. Narayana Rao and M. Krishnaiah
    Journal of Geophysical Research, 113, D17207, doi:10.1029/2007JD009411, 2008

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