Sangeeta Sharma

Research Chemist - Study Leader - Aerosol chemical and optical properties specialist including black carbon.

4905 Dufferin Street (Toronto, ON)

CURRENT S&T / RESEARCH - Coordinating and Managing Canadian Aerosol Baseline Measurement program and related research activities

• Changes in physical and chemical properties of aerosols at four Canadian sites to examine the impact of changes in emissions and climate in the Northern Hemisphere
• Changes in atmospheric aerosol composition in the Arctic, and related ice-core snow pack studies in conjunction to the atmospheric concentrations of sulphate, nitrate, black carbon and methane sulphonate
• Changes in aerosols properties due to change in fire activities in the Canadian Boreal region
• Biogenic sulphur emissions in the Arctic

PROFESSIONAL ACTIVITIES / INTERESTS

Collaborative aerosol studies and running programs with other government institutions for long term observations such as NOAA/ESRL, NOAA/PMEL, Earth Sciences Sector, Natural Resources Canada in Ottawa, Norwegian Institute for Air Research (NILU), Desert Research Institute and Maurice Lamontagne Institute, Rimouski

Member of POLAR-AOD IPY Programme led by Dr. Claudio Tomasi from Institute of Atmospheric Sciences and Climate (ISAC), CNR, Bologna, Italy

Field campaign participation related to optical and chemical characterization of atmospheric aerosol "PM-2.5 thrust study" for the measurement of black carbon aerosol (1998-2000), "Role of sulphur in the Georgia Strait study", (1999-2000), Canadian Boreal region (2003), ICARTT (2004), CCTII study (2005-2007), INTEX-B (2006), and Egbert 2007 and 2009

KEY PUBLICATIONS

Sharma, S., E. Andrews, L. A. Barrie, J. A. Ogren and D. Lavoué. 2006. Variations and sources of the equivalent black carbon in the high Arctic revealed by long-term observations at Alert and Barrow: 1989-2003. J. Gephys. Res., 111:D14208, doi:10.1029/2005JD006581.

Sharma, S., D. Lavoue, H. Cachier, L. A. Barrie and S. L. Gong. 2004. Long term trends of the black carbon concentrations in the Canadian Arctic. J. Geophys. Res., 109:D15203, doi:10.1029/2003JD004331.

Sharma S., J. R. Brook, H. Cachier, J. Chow, A. Gaudenzi and G. Lu. 2002. Light absorption and thermal measurements of black carbon in different regions of Canada. J. Geophys. Res., 107(D24):4771. doi:10.1029/2002JD002496.

Sharma, S., R. Vingarzan, L. A. Barrie, A. Norman, A. Sirois, M. Henry and C. DiCenzo. 2002. Concentrations of dimethyl sulfide in the Strait of Georgia and its impact on the atmospheric sulfur budget of the Canadian West Coast. J. Geophys. Res., 108(D15):4459, doi:10.1029/2002JD002447.