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CALPUFF
BREEZE CALPUFF is a multi-layer, multi-species, non-steady-state puff dispersion model, which can simulate the effects of time and space-varying meteorological conditions on pollutant transport, transformation, and removal.

CALPUFF can use the three-dimensional meteorological fields developed by the CALMET model or single station winds in a format consistent with the meteorological files used to drive the Industrial Source Complex Short-term version 3 (ISCST3) steady-state Gaussian model.

BREEZE CALPUFF Dispersion Model
BREEZE CALPUFF 2.0 displaying the
3D, Flowchart, and GIS views.
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Data
Meteorological
Download BREEZE Trial CALPUFF
Terrain
Download BREEZE Trial 1 Deg. DEM
Download BREEZE Trial 7.5 Min. DEM
      

Overview Features Productivity Tools FAQ Images
The BREEZE easy-to-use visual desktop offers direct access to entering data, running the model, and generating graphics. The visual desktop offers the ability to edit and visualize model data as you create a project. BREEZE features CAD-like drawing tools that make it easy to edit, move, and delete sources, grids, discrete receptors, hills, and buildings.

You can view model input data in 2-D, 3-D, or both. Intuitive form and table views of data also provide for easy data entry and customization of units. All model parameters are supplemented with complete online help, which provides definitions and acceptable ranges. BREEZE makes it easy to create and execute projects and avoid costly data entry mistakes. You can easily import and use a bitmap image of an aerial photograph or a TerraServer map as a project base map using the Import Image tool. You can also import terrain elevations from various models including 7.5 minute and 1 degree United States Geologic Survey (USGS) Digital Elevation Models (DEMs).

BREEZE saves you time and money by minimizing duplicate data entry and data entry mistakes. Trinity Consultants' professional staff of modelers, meteorologists, and software engineers is available to assist you with your software.

BREEZE CALPUFF is based on the Earth Tech CALPUFF model.

When does CALPUFF Apply?

The CALPUFF model is used for regulatory permitting applications, particularly those involving long-range pollutant transport or complex terrain. CALPUFF is a non-steady state Lagrangian puff model that allows for refined representation of long-range phenomena such as visibility, regional haze, and acid deposition through the use of advanced meteorological data. CALPUFF generally uses three-dimensional meteorological fields developed by the CALMET model.