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The University of Chicago Department of Geophysical Sciences

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Ramesh C. Srivastava

Ramesh Srivastava

Ramesh Srivastava

Position:Professor
PhD: 1964; McGill University
Phone: 312 502 7139
Email: srivast at geosci.uchicago.edu
Office #: 521

 

Research interests:

My research interests are in the areas of cloud microphysics, cloud dynamics and radar meteorology. The central problem of cloud microphysics is understanding the development of precipitation starting from the vapor phase. We are conducting theoretical studies of the formation of cloud drops and raindrops, and their size distributions, by the processes of condensation of water vapor and coalescence and breakup of drops. The results of the theoretical studies are compared with observations from field experiments.

In the area of radar meteorology, I am involved in the analysis and interpretation of radar observations of precipitation and the development and testing of new methods for the remote estimation of raindrop size distribution, rainwater content, rainfall rate and water vapor distribution.

Selected Publications:

Tian, L., G. M. Heymsfield, A. Heymsfield, A. Bansemar, L. Li, C. H. Twohy, R. C. Srivastava, 2010: A Study of cirrus particle size distribution using TC4 observations. J. Atmos. Sci., 67, 195-216.

Tian, L., G. M. Heymsfield, L. Li, and R. C Srivastava (2007), Properties of light stratiform rain derived from 10- and 94-GHz airborne Doppler radars measurements. J. Geophys. Res., 112, D11211, doi:10.1029/2006JD008144.   

Wakimoto, R. and R.C. Srivastava, editors (2003) Radar in Atmospheric Sciences, American Met. Soc. Monos.

Tian, L., G.M. Heymsfield and R.C. Srivastava (2002) Measurement of attenuation by airborne and ground-based radar in convective storms over land and its microphysical implications. J. App. Meteor., 41, 716-733.

Li, Xiaowen and R.C. Srivastava (2001) An analytical solution for raindrop evaporation and its application to radar rainfall measurements. J. Appl. Met., 40, 1607-1616.

Srivastava, R.C. and L. Tian (1996) Measurement of attenuation by a dual-radar method: Concept and error analysis. J. Atmos. Ocean. Technol., 13, 937-947.

Hu, Zailiang and R.C. Srivastava (1995) Evolution of raindrop size distribution by coalescence, breakup and evaporation: Theory and observations. J. Atmos. Sci., 52, 1761-1783.

Srivastava, R.C. and J.L. Coen (1992) New explicit equations for the accurate calculation of the growth and evaporation of hydrometeors by the diffusion of water vapor. J. Atmos. Sci., 49, 1643-1651.

Srivastava, R.C. (1991) Growth of cloud drops by condensation: Effect of surface tension on the dispersion of drops sizes. J. Atmos. Sci., 48, 1595-1605.

Srivastava, R.C. (1989) Growth of cloud drops by condensation: A criticism of currently accepted theory and a new approach. J. Atmos. Sci., 46, 869-887.

Srivastava, R.C. (1987) A model of intense downdrafts driven by the melting and evaporation of precipitation. J. Atmos. Sci.., 44, 1752-1773.


Appointments

NASA/GEST
Visiting Scientist                                                    Oct. 2008-Jun 2009

University of Chicago
Professor 1978 – 2008
Associate Professor 1972 – 1978
Assistant Professor 1969 – 1972

National Center for Atmospheric Research, Boulder, CO
Chief Scientist, National Hail Research Experiment              1976
Visiting Scientist                                                              1983 – 1984

Institute of Tropical Meteorology, Pune, India
Senior Scientist                                                               1966 – 1967                
Woods Hole Oceanographic Institution, Woods Hole
Assistant Scientist                                                           1964 – 1966
National Physical Laboratory, New Delhi, India
Junior Scientist                                                                1955 – 1962


Fellow American Meteorological Society
Fellow Royal Meteorological Society

American Meteorological Society: "The Teaching Excellence Award."


 
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