Scientist Profile

Dr. D. M. Chate

: Retired Scientist

: +91-(0)20-25904257

: +91-(0)20-25865142

Email ID
: chate[at]tropmet[dot]res[dot]in

Air Pollution Studies
Degree University Year Stream
Ph. D University of Pune, India 2006 Physics
M. Sc Nagpur University, Nagpur, India 1983 Physics
B. Sc. Nagpur University, Nagpur, India 1981 Physics,Chemistry,Mathematics

  Research Topics: In-cloud aerosol scavenging mechanisms, Role of electric charge in below-cloud scavenging of submicron particles, Below-cloud scavenging of boundary layer aerosol and gases. Ozone flux measurements by Eddy correlations and Gradient method in marine boundary layer over Ocean, Nucleation of atmospheric aerosols

  Interdisciplinary: Atmospheric physics and chemistry; Cloud dynamics and convection including thunderstorm; Numerical methods; Computer modeling and scientific software; Computational physics; Satellite Data analysis for lightning distributions and its impact on climate variability; Analysis of global precipitation satellite data; Precipitation inter-comparison analysis

  Disciplinary: Studies related to atmospheric aerosol and cloud microphysics; Aerosol Chemistry and Transport; Acid Deposition and computer modeling of geophysical data

Award Name Awarded By Awarded For Year
Year Designation Institute
2018-Present Scientist F IITM, Pune
2013-2018 Scientist E Indian Institute of Tropical Meteorology, Pune
2009-2013 Scientist D Indian Institute of Tropical Meteorology, Pune
2008-2009 Postdoctoral Researcher National University of Ireland, Galway Ireland
2003-2009 Scientist C Indian Institute of Tropical Meteorology, Pune
1997-2003 Scientist B Indian Institute of Tropical Meteorology, Pune
1990-1997 Junior Scientific Officer Indian Institute of Tropical Meteorology, Pune
1984-1990 Senior Scientific Assistant Indian Institute of Tropical Meteorology, Pune

Research Highlight

Climate indicators for lightning over sea, sea-land mixed and land-only surfaces in India

Lightning activity varies with the surface heat flux, Bowen ratio and cloud base height over India. Over Indian land, annual lightning flash counts are found to be more by 32 and 24% than those over IGP and Indian seas, respectively. Total heat flux (sensible + latent) and lightning flash counts show a strong correlation coefficient of 0.75 for Indian land and 0.73 for IGP relative to that of Bowen ratio with lightning flash count. the total heat flux represents the best parameter for describing lightning activity over IGP and Indian land. Bowen ratio ≥1 in pre-monsoon increases lightning flash counts over IGP and Indian land. Cloud base height (a measure of moisture) and lightning flash counts show values in the order as Indian land > Indian seas > IGP.

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