Generic Guidance and Optimum Model Settings for the CALPUFF ...

Table 2-2. Model Option Switches for No-Obs Simulations.
Option Parameter Recommend
value
Explanation and Justification
Input Group 0. Input and Output Files
Number of prognostic and IGF NM3D 1 - 52 Number of 3D.DAT files.
CALMET files
Input Group 4. Meteorological Data Options
Set the control file to reflect NOOBS NOOBS
2
For screening model runs option 2 means use prognostic data
(MM4/MM5/3D.DAT) file exclusively, i.e., no surface, overwater or upper air
simulation.
stations.
Cloud Data Options – Gridded Cloud ICLOUD 4 Gridded cloud cover from Prognostic relative humidity at all levels (MM5toGrads
Fields
algorithm)
Use gridded prognostic wind field
This value can vary depending on the format of the prognostic model data and
model output (3D.DAT) as input to IPROG
14 whether the prognostic data is input as the IGF (14), Step 1 wind field (13) or as
CALMET
observations (15).
Radius of influence of terrain feature TERRAD* No Default There is no default for TERRAD and its value in km requires user input. TERRAD
is specific to each model domain.
* Of these parameters that require changes for a NOOBS model run, the only one that is site specific and requires special attention is TERRAD.
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