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Record Search Query:

Second-order Closure Integrated Puff Model
Entry ID: SCIPUFF-Model

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Summary

Abstract: SCIPUFF (Second-order Closure Integrated Puff) model is a Lagrangian puff dispersion model developed by Titan's ARAP Group that uses a collection of Gaussian puffs to represent an arbitrary, three-dimensional time-dependent concentration. The turbulent diffusion parameterization is based on turbulence closure theory, providing a direct relationship between the predicted dispersion rate and ...

Related URL

Link: VIEW PROJECT HOME PAGE

Description: Support Center for Regulatory Air Models Home Page.

Link: VIEW RELATED INFORMATION

Description: Model Documentation

Link: VIEW RELATED INFORMATION

Description: Dispersion modeling uses mathematical formulations to characterize the
atmospheric processes that disperse a pollutant emitted by a source. Based on
emissions and meteorological inputs, a dispersion model can be used to predict
concentrations at selected downwind receptor locations. These air quality
models are used to determine compliance with National Ambient Air Quality
Standards (NAAQS), and other regulatory requirements such as New Source Review
(NSR) and Prevention of Significant Deterioration (PSD) regulations. These
models are addressed in Appendix A of EPA's Guideline on Air Quality Models
(also published as Appendix W of 40 CFR Part 51), which was originally
published in April 1978 to provide consistency and equity in the use of
modeling within the U.S. air quality management system. These guidelines are
periodically revised to ensure that new model developments or expanded
regulatory requirements are incorporated.

Link: VIEW RELATED INFORMATION

Description: Receptor Models

Receptor models are mathematical or statistical procedures for identifying and
quantifying the sources of air pollutants at a receptor location. Unlike
photochemical and dispersion air quality models, receptor models do not use
pollutant emissions, meteorological data and chemical transformation mechanisms
to estimate the contribution of sources to receptor concentrations. Instead,
receptor models use the chemical and physical characteristics of gases and
particles measured at source and receptor to both identify the presence of and
to quantify source contributions to receptor concentrations. These models are
therefore a natural complement to other air quality models and are used as part
of State Implementation Plans (SIPs) for identifying sources contributing to
air quality problems. The EPA has developed the Chemical Mass Balance (CMB) and
UNMIX models as well as the Positive Matrix Factorization (PMF) method for use
in air quality management. CMB fully apportions receptor concentrations to
chemically distinct source-types depending upon the source profile database,
while UNMIX and PMF internally generate source profiles from the ambient data.

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Caption Description: European Tracer Experiment

Service Citation

Title: Second-order Closure Integrated Puff Model
Provider: Titan Corporation, L3

Service Keywords

MODELS >REGULATORY MODELS

MODELS >ATMOSPHERIC CHEMISTRY MODELS

Science Keywords

ATMOSPHERE >AEROSOLS

ATMOSPHERE >AIR QUALITY

ATMOSPHERE >ATMOSPHERIC WINDS

ATMOSPHERE >ATMOSPHERIC PRESSURE

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
ENVIRONMENT
TRANSPORTATION

Access Constraints SCIPUFF Version 1.2PD and its technical documentation are available by contacting: Dr. R. Ian Sykes, Titan Research & Technology, ARAP Group, P.O. Box 2229, Princeton, NJ 08543-2229. Phone: (609) 452- 2950.

Use Constraints Titan Corporation shall not be liable for any fault or failure of SCIPUFF or
for any consequences whatsoever of any fault or failure. By proceeding with the
download, the recipient agrees to these conditions.

Ancillary Keywords

Air Quality Models
EPA
User Guide
Modeling

Service Provider

L-3 COM/TG > Titan Group, L-3 Communications

Service Organization URL: http://www.l-3com.com/

Service Provider Personnel
Name: L-3 TITAN GROUP Phone: (609) 452-2950 Email: webmasters at titan.com Contact Address: L-3 Communications Titan Group P.O. Box 2229 City: Princeton Province or State: NJ Postal Code: 08543 Country: USA

Distribution Media

Distribution_Media: Electronic/Download
Distribution_Size: 111KB
Distribution_Format: zip
Fees: None

Personnel

R. IAN SYKES
Role: TECHNICAL CONTACT
Phone: (609) 452-2950
Fax: (609) 452-2856
Email: SCIPUFF-info at titan.com
Contact Address:
The Titan Corporation
P.O. Box 2229
City: Princeton
Province or State: NJ
Postal Code: 08543-2229
Country: USA

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA

Publications/References

Sykes, R. I., C. P. Cerasoli and D. S. Henn (1999). The representation of
dynamic flow effects in a Lagrangian puff dispersion model, J. Haz. Mat., 64,
223-247.

Sykes, R. I., S. F. Parker, D. S. Henn, C. P. Cerasoli and L. P. Santos (1998).
PC-SCIPUFF Version 1.1PD.1 Technical Documentation. ARAP Report No. ...

Creation and Review Dates

SERF Creation Date: 2006-04-07
SERF Last Revision Date: 2010-04-27

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