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.
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.