A preliminary evaluation of ADPIC model performance on selected ANATEX releases using observed, analyzed, and dynamically predicted winds

The mesoscale and hemispheric versions of the ADPIC model are essentially identical. They both use Lagrangian markers to represent the movement of pollutant mass or activity within an Eulerian framework. They differ only in their utilization of either raw or processed wind velocity data. The mesoscale ADPIC uses surface and upper air wind observations, which are interpolated and extrapolated to a regular matrix of grid points using well-tested routines. Until the recent release of the Across North America Tracer Experiment (ANATEX) database, there have been few opportunities for testing whether the GWC wind fields provide an accurate depiction of large-scale flow features between sources and samplers. -from Authors