of regional point sources on Shenandoah National Park. Section 4 describes the analysis
performed to assess the relationship between distance of a source and impact at a receptor in
the park. The study results are summarized in Section 5, including a discussion of what was
learned during the modeling process.
The technical approach for this study is described briefly below:
Testing of the Example Problem
The MESOPUFF II software and documentation were retrieved from the SCRAM BBS,
installed on a PC, and run for the example problem. The model output was compared with the
sample output provided to ensure that the model was running properly on our system. Errors
and/or omissions in the model documentation were identified.
A set of recommended improvements for the MESOPUFF II system and example problem
were developed. The recommended improvements considered input files, documentation and
user instructions, and modifications to the MESOPUFF II code. The recommended
improvements were implemented and a revised version of the MESOPUFF II PC files were
placed on the SCRAM BBS.
Demonstration Application of MESOPUFF II to Shenandoah National Park
MESOPUFF II was applied to the estimation of PSD and AQRV impacts at Shenandoah
National Park as a demonstration of implementing the IWAQM interim (Phase 1)
recommendations. The necessary data were collected and processed, including
meteorological, emissions, receptor, and land use data. Data processing procedures were
developed to prepare model inputs and for postprocessing of model output. The process
involved in implementing the IWAQM Phase 1 recommendations was documented, including
the identification and resolution of key modeling issues and the resources used to complete the
application. The products of this application were: (1) an assessment of the experience in
performing the modeling exercise, including suggestions for improving the Phase 1
recommendations, (2) a demonstration assessment of the impacts at Shenandoah National
Park for a set of PSD sources surrounding the park, and (3) a five-year meteorological data
set, to be made available for distribution.
Application of MESOPUFF II for Distance versus Impact Analysis
In addition to the application intended to demonstrate the use of MESOPUFF II to assess the
impacts of real PSD sources on Shenandoah National Park, a second analysis was performed
to provide some indication of the relationship between distance of a source and impact at a
receptor in the park. MESOPUFF II was applied to assess the impacts of sources placed on
rings at specific distances from Shenandoah National Park.
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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