Table of Contents - The Atmospheric Studies Group at TRC

Section 10: POSTPROCESSORS
The name and full path of each file (except one) is assigned in the control file. The exception, the control
filename itself, is assigned on the command line. For example, on a DOS system,
POSTUTIL d:\MYWORK\UTIL1.INP
will execute the POSTUTIL code in the current working directory, and read the input and output
filenames for the current run from the control file UTIL1.INP in the directory d:\MYWORK. If the
control filename is not specified on the command line, the default control filename (i.e., POSTUTIL.INP
in the current working directory) will be used. The total number of characters in the path and filename
can be up to 132 characters.
The POSTUTIL control file is configured using any standard text editor (e.g., NOTEPAD). It uses the
general CALPUFF control file structures, containing several input groups with module inputs set within a
pair of special delimiter characters (!). All documentation associated with these inputs is written outside
of these delimiters. A description of each input variable is shown in Table 10-10.
A sample control file that illustrates a common POSTUTIL application for obtaining total sulfur and total
nitrogen deposition fluxes is provided in Table 10-11. The top of the control file contains three lines that
are reserved for identifying the application. These lines are written to the output file, and become part of
the documentation in subsequent processing.
Input Group: 0
Input Group 0 identifies the input and output files for the application. The output consists of a list file
that documents how this application of POSTUTIL is configured, and a data file that is identical in form
to the binary data files created by CALPUFF. In this sample, the data file is given the generic name
'cpuf.flx' (!UTLDAT = CPUF.FLX!) to indicate that wet and dry fluxes are summed, and that total sulfur
and total nitrogen are added to the list of species in the file. The list file is given the default name
(!UTLLST = POSTUTIL.LST!). More specific names should be used in typical applications.
Input files include one or more CALMET meteorological data files and one or more CALPUFF binary
files. A CALMET file is not needed for this application because no nitrate partitioning will be calculated
(MNITRATE=0), but is included in the control file to illustrate the format. Two CALPUFF binary files
are needed for this application: one for the dry deposition flux, and one for the wet deposition flux.
Therefore !NFILES = 2! and two filenames are provided in Subgroup 0b:
! MODDAT =WFLX.DAT ! !END!
! MODDAT =DFLX.DAT ! !END!
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