Authors

Argonne National Laboratory
Jack Shannon

Summary

The Atmospheric Pathways Module is based on the Advanced Statistical Trajectory Regional Air Pollution (ASTRAP) model.  ASTRAP is a Lagrangian (trajectory), linear, long-term regional model that is designed for assessment applications.  ASTRAP is highly parametrized, but the parameterizations are based on field studies of the relevant processes.  The ASTRAP model is executed off-line with highly detailed emission inventories to produce the source-receptor matrices contained in the Atmospheric Pathways Module.  ASTRAP results compare favorably with long-term averages of both observations and more cmplex diagnostic Eulerian models such as the Regional Atmospheric Deposition Model (RADM).  ASTRAP is particularly efficient in examining the effects of year-to-year climatological variability in seaasonal average concentrations and deposition accumulations through operation with meterological data for different years.

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