Research Projects

Project at a Glance

Project Status: complete

Report Published January 1997:

Title: Development of an acid deposition model for the south coast air basin

Principal Investigator / Author(s): Seinfeld, John

Contractor: California Institute of Technology

Contract Number: 92-311


Research Program Area: Ecosystem & Multimedia Effects, Atmospheric Processes

Topic Areas: Acid Deposition, Modeling


Abstract:

A three-dimensional urban acid deposition model has been developed. The model includes a size- and chemically-resolved aerosol model coupled to a photochemical air quality model. The model is capable of predicting deposition of acidic aerosol species as a function of particle size. The model has been applied to simulate gas and particulate air quality during two episodes of the Southern California Air Quality Study (SCAQS). Simulation results are deemed to be generally good, although uncertainties in key particulate emissions lead to mode1 prediction uncertainties that will need to be sharpened in the future when more accurate emissions inventories can be developed.


 

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