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CALPUFF Dispersion Module

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— last modified Jun 05, 2009 12:41 PM

CALPUFF Dispersion Module

Description & Model Info | Module Info | Current Version(s) | Change Log

Dispersion StepDescription

The CALPUFF dispersion module invokes the CALPUFF dispersion model to predict PM2.5 concentrations at ground level due to smoke from fires.  CALPUFF is a multi-layer non-steady-state puff dispersion model that can simulate the effects of temporally and spatially varying meteorological conditions on pollutant transport, transformation, and removal.  As implemented in the BlueSky Framework, PM2.5 is modeled with no chemical transformations.  The CALPUFF module uses CALMET v5.8 to transform three-dimensional meteorological data from MM5 into a CALPUFF-ready format, and the EPM2BAEM utility to transform emission rate data from an upstream BlueSky emissions module into a CALPUFF-ready format.  After executing CALPUFF, the module invokes the CALPUFF2netCDF utility to convert the CALPUFF output into a netCDF dispersion output that complies with Models3 IO-API conventions.

Model references:

Scire, J.S.; Strimaitis, D.G.; Yamartino, R.J. 2000.  A User's guide for the CALPUFF dispersion model (Version 5).  EarthTech, Inc., Concord, MA.

Model information contact:

Joe Scire, TRC Environmental Corporation, jscire@alum.mit.edu
David Strimatis, TRC Environmental Corporation, jss@src.com

Model information link:

http://www.src.com/calpuff/calpuff1.htm

Module Info

Invoked as:

DISPERSION = CALPUFF

in configuration ini

Known issues:

CALPUFF becomes computationaly prohibitive when simulating a large number of fires.

Notes:

The MM5 modeling domain and grid resolution dictates the CALPUFF modeling domain and grid resolution.
Fires are modeled as buoyant area sources.
A 15-layer vertical grid structure is used.

Data fields used: 

latitude, longitude, area, emissions, plume_rise, met_domain_info

Related modules:

Authors:

Current Module Version(s)

Version 1 - stable

5/29/09
model v5.8 level 070623

  • download
    Requires BlueSky Framework v3.1 or greater

    Change Log

    Version 1:    5/29/09

    included as default in BlueSky v. 3.1

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