33.3.19 Integration Parameters Dialog Box

The Integration Parameters dialog box allows you to set the parameters for the integration of the chemical source term $S$ in this equation in the separate Theory Guide. See Section  19.3.1 for details.

Integration Method   contains options to choose the method for integration.

ISAT   enables the ISAT option and expands the dialog box to include inputs for ISAT parameters.

Direct Integration   enables the direct integration method to integrate the chemical source term in the calculation.

ODE Parameters   contains options to specify the error tolerances.

Absolute Error Tolerance   specifies the absolute error tolerance.

Relative Error Tolerance   specifies the relative error tolerance.

ISAT parameters   contains inputs required for ISAT integration method.

ISAT Error Tolerance   controls the numerical error in ISAT liner interpolation. Decrease this value to get accurate minor species and pollutant predictions.

Max. Storage   is the maximum RAM used by the ISAT table, and has a default value is 100 MB.

Reference Time Step   specifies the time step size by which the ISAT table is normalized.

Number of Trees   specifies the number of sub-tables within the ISAT table.

Verbosity   specifies the level of detail at which you can monitor the ISAT performance.

Clear ISAT Table   purges the ISAT table.