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 and OMI satellites
  • Validation of satellite trace gas retrievals

Finished Projects:

  • Global validation platform for satellite HCHO retrievals (Papser submitted to ACP)
  • Effect of sea-salt aerosol on tropospheric bromine chemistry (Paper published on 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 CoverageCovered 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 ERLMedia Coverage)