Research Interests: Atmospheric and Climate Sciences
Atmospheric new particle formation and growth
Aerosol-induced changes in cloud, radiation, and climate
Satellite remote sensing of trace gases and aerosols
Urban air pollution and micro-meteorology
Extreme weather events
IITK-IITM Colloboraive Aerosol Measurements: April-May 2012/2013
Organized, conducted, and analyzed aerosol size distribution and trace gases measurements at two distinct urban locations, Pune and Kanpur, in India.
Aerosol Life Cycle IOP: July-August 2011
Actively participated in archiving and analyzing data from Aerosol Life Cycle Intensive Observation Period (IOP) campaign during July-August, 2011 in Long Island, New York, USA.
PROPHET CABINEX: July-August 2009
Actively participated in science meetings and data analysis from PROPHET Community Atmosphere-Biosphere INteractions Experiments (CABINEX)-2009 campaign.
Marie Curie Research Fellow: October 2006-September 2009
As part of FP6 EST SPARTAN project (contract no. MEST–CT–2004–7512) at the University of Leicester, I was actively involved in the organizing committee of the Sprite–Watch campaign and observations of Transient Luminous Events (TLE's) at Meteorological Observatory, Sinezka Mountain, Poland during July 2007.
ISRO-GBP: December-January 2004
Participated in the ISRO-GBP phase-II land campaign at Indian Institute of Technology, Kanpur during winter of 2004.
Sponsored Research Projects (Total funding: Rs. 4,44,54,722/-)
1. Development and evaluation of satellite-based estimates of ultrafine particles in four Indian locations
Funding Agency: SERB (STAR Award)
Project Period: 3 Years (2023-2026)
2. Investigations of atmospheric aerosol physico-chemcial properties: Ambient observations and numerical simulations (completed)
Project Period: 2 Years 4 Months (2021-2023)
Role: PI (Co-PI: Prof. P. Prem Krian and Dr. Ashoka S. Vudaygiri, School of Physics, UoH)
3. Association between atmospheric aerosol nucleation and cloud condensation nuclei: Implications for aerosol-indirect forcing
Funding Agency: UoH-IoE
Project Period: 3 Years (2021-2023)
Role: PI (Co-PI: Dr. Rakesh Hooda, FMI, Finland)
4. Observation of nanoparticles in a polluted environment: From sub-5nm to CCN-active sizes (completed)
Funding Agency: DST-SPLICE-CCP
Project Period: 4 Years (2018-2022)
5. Understanding new aerosol particle formation in the atmosphere: Observation, modeling and comparisons (completed)
Funding Agency: DST-SERB
Project Period: 3 Years (2017-2020)
6. Start-Up Grant (completed)
Funding Agency: University Grant Commission, Government of India
Project Period: 2 Years (2017-2018)
Aerosol Physics Laboratory @University of Hyderabad
TSI Scanning Mobility Particle Sizer (SMPS) consisting of 3082 Electrostatic Classifier (EC), 3772 Butanol Condensation Particle Counter (CPC), 3081A Long-Differential Mobility Analyser (LDMA)
AIRMODUS A11 nano Condensation Nucleus Counter (nCNC) consisting of A10 Particle Size Magnifier (PSM) and A20 Condensation Particle COunter (CPC), Zero Air Filter, Vaccum Pump, Compressor Pump
Custom-built Diffusion Dryer
Custom-built in-line ambient aerosol sampling system