Modeling Software for EHS Professionals
Long range puff model for complex terrain and meteorological conditions
CALPUFF is a multi-layer, multi-species non-steady-state puff dispersion model which simulates the effects of time- and space-varying meteorological conditions on pollution transport, transformation, and removal. It includes algorithms for subgrid scale effects and longer range effects. The U.S. EPA recommends its use for regulatory applications on scales of tens to hundreds of kilometers.
BREEZE CALPUFF offers a complete user graphical interface for the U.S. EPA-approved Version 5 and the advanced Version 7 of the CALPUFF modeling system, which includes:
BREEZE CALPUFF provides modelers with the tools and functionality required to perform air quality analyses that help to address both permitting, regulatory, and nuisance issues as well as perform academic research.
Download the tech sheetBREEZE CALPUFF enhances the basic U.S. EPA-approved programs providing modelers with more functionality and tools for analyzing results. The main components of the BREEZE CALPUFF modeling system are:CALMET - includes a diagnostic 3-dimensional meteorological model (considering slop flows, kinematic terrain effects, terrain blocking effects, and a divergence minimization procedure) and a micro-meteorological model for overland and overwater boundary layersCALPUFF - a non-steady-state Lagrangian... Learn more
BREEZE 3D Analyst is a powerful post-processor that enables you to analyze and visualize data in time series, contour plots, and 3D isosurface and plane views; and to visualize the intersection / union of multiple data sets. It is useful for analyzing meteorological, terrain, and concentration data. Animated movies can be created for display in presentations and it is compatible with Golden Software's Surfer application and Google Earth. Learn more
CALPUFF takes into account the obstruction of wind flow from structures, such as buildings and point sources (i.e., stacks). Like any other model object in BREEZE CALPUFF, buildings can be copied and pasted or drawn into the 2D display. Building information can be processed by the embedded U.S. EPA BPIP program. Learn more
BREEZE CALPUFF allows you to model point, area, volume, and line sources. At least one source must be defined. BREEZE offers object array generators that create user defined arrays (e.g., polylines, polygons, and Cartesian grids) of the model object type. Learn more
Receptors are locations where BREEZE CALPUFF will compute a concentration or deposition value. At least one receptor must be defined. Learn more
BREEZE CALPUFF provides a variety of utilities to facilitate model setup or the analysis of results.Embedded Surfer (need to be pre-installed) link in BREEZE MAKEGEOCoordinate Converter to convert one coordinate to anotherA tool to blank on-site or off-site receptorsData Explorer to provide means of viewing project data in a Windows Explorer-like fashion. It is also referred to as Spreadsheet or Table view because model object data can be viewed, added, removed, and edited from within this view... Learn more
Model-ready meteorological data for the CALPUFF and CALMET models
Model air quality impacts due to industry emissions for permitting and planning purposes
Air dispersion modeling suite that predicts air quality impacts from moving and idling motor vehicles
Analyze and visualize model results plus meteorological and terrain data
Custom EHS, modeling, and programming solutions
