Research Goal:

To better understand the processes determining the distribution of reactive gases and aerosols, and their implications for air quality, public health, and climate.

Research Interests:

• Atmospheric chemistry and its implications
• Monitoring of trace gases from space
• Modeling of atmospheric composition

Research Techniques:

• Remote Sensing
• Modeling 
• Data assimilation

Current Research and Projects:

• Retrievals of HCHO from OMPS satellites
• Validation of satellite trace gas retrievals

Finished Projects:

• Effect of sea-salt aerosol on tropospheric bromine chemistry (Paper submitted to ACP)
• Long term trend in HCHO columns over the North America and its driving factors (Paper published on GRL)
• Surface HCHO concentrations retrieved from satellites and the heath impacts (Paper published on ES&T; Media Coverage; Covered by PNAS Front Matter)  
• Validation of HCHO retrievals using SEAC4RS aircraft observations (Paper published on ACP)
• Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS): GEOS-Chem Team (NASA Group Achievement Award)
• Anthropogenic emissions of highly reactive VOCs inferred from oversampling of HCHO columns: Implications for Oil/Gas operations and Urban point sources (Paper published on ERL; Media Coverage)