Planned Contributions

Pre-Campaign

• Assess the influence of long-range transport and different source regions and types on air arriving over the campaign region by using inert and e-folding tracers with GCM meteorology.

• Start building a more detailed 3-D chemical climatology for the region.

During Campaign

• Provide a 3-D chemical climatology for springtime in East Asia based on meteorology from previous years using GISS GCM and ECMWF Integrated Forecast System (IFS) met fields.
  • Meteorological parameters (3-hourly)
  • Chemical species concentrations (3-hourly)
  • Chemical budget diagnostics (3-hourly)
    Data will be available; GrADs and Vis5D visualization of fields.

• Compare archived climatology with current and forecast met fields; use as a zeroth-order forecast system.
  • Supplement forecast runs from other groups with chemical budgets

• Provide field support for chemical modelling
  • Ability to run model on-site with quick-turnaround to provide additional information
  • 'Old' meteorology only - no real-time forecasts

Post-Campaign

• Obtain ECMWF IFS met fields for the campaign period.

• Derive detailed chemical budgets for the period, to determine how different source regions and emission types affect the tropospheric oxidizing capacity in Asian outflow and over the Pacific.

• Use campaign observations with sensitivity studies to understand how different source regions and emission types in Asia are responsible for primary and secondary pollutants over the Pacific.

• More detailed analysis of the coupling of meteorological and chemical processes in affecting composition for the air masses sampled during aircraft flights.