US Environmental Protection Agency
           Office of Transportation and Air Quality
            (formerly: Office of Mobile Sources)

              NONROAD Emissions Inventory Model

NR-NOTE6.TXT  January 7, 2000

Further Updated Graphic User Interface (GUI)

This is one item in a series of notes being issued concerning the
DRAFT EPA NONROAD model, which was released on June 18, 1998, and
distributed at the workshop in Chicago on June 25.
Updated/corrected versions of some of the model files were posted
in July and October of 1998, and April 1999.  Various technical
reports documenting the model inputs were also distributed via
the web site at various times since June 1998.  

This note announces the release of an updated/debugged version of
the Graphic User Interface (NR-GUI.EXE).  This version corrects a
few bugs that were in the prior version of the GUI and provides
minor enhancements to the operation.  Since this has no effect on
the core model (nonroad.exe) or the input data files, it should
not result in any difference in outputs from the model.  


INSTALLATION OF NEW GUI

First you need to unZIP the nr-gui.zip file using any available
unZIP utility.  This file has been ZIP'd so that the correct file
datestamp will be maintained (January 3, 2000), which will make
it easier to verify which version of the GUI you are using when
communicating with EPA about any questions/problems you may have
with it.  If unfamiliar with handling of ZIP files, please see
http://www.epa.gov/oms/viewers.htm.  After unZIPing, save the new
nr-gui.exe file into your main NONROAD model directory, e.g., 
c:\nonroad, overwriting the old version of nr-gui.exe.  


ENHANCEMENTS AND BUG FIXES

The only change since the last update notice (NR-NOTE5.TXT dated
Dec 14, 1999) is a fix to the handling of the Stage II Refueling
Control input.  The prior version would always reset this value
to zero when opening any OPT file, rather than reading the value
that was already in the OPT file. 

Following are the changes listed in the prior GUI update notice:

The major fix involves the GUI's generation of the .OPT file
entry for the equipment population data filename.  The prior
version of the GUI would cut off the first couple of characters
of the file path\name by placing it in the wrong columns of the
OPT file.  Sometimes this would not cause a problem, such as if
just the "c:" part of the name were cut off and the default path
was the c:\nonroad directory.  But if this was done multiple
times to the same OPT file, the model would not run properly,
since it would be unable to find the POP file. 

Under the Advanced Options menu, there is a new item for Optional
Output to generate EPS or NET outputs.  Please note that the NET
output option is currently disabled, since we are still resolving
what that output will actually look like.  However, the EPS
output is functional.  Prior to this version of the GUI,
generating EPS output required manually editing the .OPT file to
indicate the desired EPS output filename.  Now the EPS option is
accessible directly from the GUI. 

Various other minor enhancements and bug fixes include changes to
the operation the Advanced Options input screens and to the
operation of the CANCEL button on various input screens. 


KNOWN PROBLEMS

The only minor problem we are aware of with the GUI concerns
operating it while also running Groupwise version 4.1 under
Windows-98.  In this particular situation the GUI still works,
but after completing a NONROAD model run from the GUI and closing
the DOS window, the GUI does not fully recognize that the model
run is complete, and thus the output file details are not
displayed and the "View Message File" button does not appear.
However, you can still run the Reporting Utility at that point
and import the .OUT file as usual.  If you wish to view the
Message file or see the date and size of the message and output
files, you can simply close and re-open the GUI, and re-open the
desired OPT file.  The file details and "View Message File"
button will then appear.  If you notice any similar problem and
you are not using Groupwise 4.1 email software, we would
appreciate hearing from you about the problem. 


Thank you,
NONROAD Engine Emission Modeling Team
Assessment and Standards Division, US EPA

Email:  nonroad@epa.gov
Fax:    734-214-4939
Web:    www.epa.gov/oms/nonrdmdl.htm
US mail:  US EPA Assessment and Standards Division
          2000 Traverwood Drive
          Ann Arbor MI 48105