2 REVIEW OF THE SCRAM BBS FILES AND EXAMPLE PROBLEM
The Support Center for Regulatory Air Models bulletin board (SCRAM BBS) maintains a
number of air quality models for distribution, including the MESOPUFF II modeling system.
The SCRAM BBS MESOPUFF II modeling package consists of the model and processors,
associated documentation, and an example problem. The initial task in evaluating the
IWAQM Phase 1 recommendations regarding MESOPUFF II was to review these BBS
distribution files and example problem, and suggest improvements to the package.
EVALUATION OF SCRAM BBS FILES
We were successful in locating and retrieving the MESOPUFF II modeling package and
associated documentation from the SCRAM bulletin board. Downloading the four
MESOPUFF II "zipped" files required approximately three hours (at 2400 baud rate). No
problems were encountered in expanding the files and executing the test case. The test case
output obtained on our system (PC/486) was identical to that provided with the model, and no
problems were encountered in the actual mechanics of running the model. In addition,
WordPerfect files for MESOPUFF II documentation were downloaded from SCRAM and
printed. No problems were encountered with that operation.
It should be noted that no test case was provided for the first MESOPUFF II meteorological
pre-processor, called READ62. Thus, this processor was not tested. READ62 reads upperair
meteorological data from tape. Between the execution of READ62 and the execution of
MESOPAC, the user must fill in missing data by hand. This process is likely to cause more
difficulties than the actual execution of the model. As will be described later in this report, a
significant investment of manpower is necessary to create the input files for MESOPAC.
Some omissions were identified in the instructions provided for executing the test case that
might cause confusion for new users. In addition, suggested improvements were made to the
test case post-processing files. Each of these is described in detail below. During the testing
process, one error in an input file supplied for the test case and one error in the model code
itself were identified. These are also described below.
Instructions for Executing the Sample Problem (README.TXT)
The text file README.TXT was included in one of the MESOPUFF II "zipped" files. It
begins with a discussion of how to "unzip" the files, which appears unnecessary since users
who do not know how to unzip files will not be able to access README.TXT.
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castellano: DISPER CUSTIC DESCAR RADIA italiano:
deutsch: DIS CUS DES RAD
castellano: DIS CUS DES RAD english: DIS CUS DES RAD
português: DIS CUS DES RAD italiano: DIS CUS DES RAD
français: DIS CUS DES RAD