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1990 SARMAP Ozone Study

  Updated December 11, 2003  

The development of the SARMAP Air Quality Model has been applied in central California including the San Joaquin Valley and surrounding air basins, to prepare the 1994 State Implementation Plan.  The model has been extensively tested and evaluated using the rich database of the San Joaquin Valley Air Quality Study.  The model passed the model evaluation criteria of U.S. EPA and the California Air Resources Board.   The model has many important attributes which include: map projection capability to account for the curvature of the Earth; telescoping grid capability;a coordinate system that matches the coordinate system of MM5 to avoid interpolation between the two models; grid nesting capability (both one-way and two-way nesting is possible); a high resolution vertical grid system (the thickness of the layer near the ground is about 10 m); two chemical mechanisms (Carbon-bond-IV and Statewide Air Pollution Research Center (SAPRC)); a Plume-in-Grid module; and three advection schemes.  An aerosol module is being incorporated into the model.

Detailed information about the study can be obtained from Karen Magliano at (916) 322-7137 or via e-mail at

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