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Published July 1999 | public
Journal Article

Analysis of ozone in the San Joaquin Valley of California

Abstract

The dynamics of ozone in the San Joaquin Valley of central California are studied by systematic diagnostic runs of the three-dimensional SARMAP Air Quality Model. Air quality in the San Joaquin Valley is the result of a complex combination of local and transported emissions. Simulations show that relatively brisk winds at points of inflow to the Valley produce a strong dependence of ozone in the Valley on upwind conditions. Furthermore, NOₓ influx from boundaries and local emissions has significantly greater impact on ozone production than ROG influx and emissions.

Additional Information

We wish to thank Dr. Saffet Tanrikulu for making SAQM available to us and for his valuable assistance in the project. This work was supported by the California Air Resources Board, Exxon Education Foundation and the IBM Environmental Research Program. Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the IBM Corporation or the Exxon Education Foundation. Fig. 2 was created using GrADS.

Additional details

Created:
August 22, 2023
Modified:
October 25, 2023