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NEAR-SURFACE AIR PARCEL TRAJECTORIES - ST. LOUIS, 1975
Citation:
Hull, L., W. Dannevik, AND S. Frisella. NEAR-SURFACE AIR PARCEL TRAJECTORIES - ST. LOUIS, 1975. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-77/123 (NTIS PB274368), 1977.
Description:
The utility of air parcel trajectories is described for the diagnosis of mesometeorological and urban air pollution problems. A technique is described that uses the St. Louis Regional Air Monitoring System (RAMS) to provide wind measurements for the local urban scale. A computerized trajectory model is described that computes near-surface air parcel motions. Results are presented for a study of 50 trajectory case studies during the summer 1975 St. Louis experiments. It is concluded that the use of RAMS minute-averaged data has been made a fully operational segment of the trajectory model and produces a detailed and accurate description of the urban wind field. The model can be modified to accept wind observations on any time or distance scale. (Portions of this document are not fully legible)