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Model Report

Biogenic Emissions Inventory System

Last Revision Date: 11/16/2009 View as PDF
General Information Back to Top
Model Abbreviated Name:

Model Extended Name:

Biogenic Emissions Inventory System
Model Overview/Abstract:
***BEIS3 is now embedded in the CMAQ model***

The Biogenic Emissions Inventory System, Version 3 (BEIS3) is being developed to support the needs of regional and urban-scale air quality simulation models. BEIS3 is designed to be incorporated into the Sparse Matrix Operational Kernel Emissions (SMOKE) system, which serves as the emissions processor for most EPA atmospheric pollutant models. BEIS3 computes gridded, hourly emissions for speciated volatile organic compounds (VOCs) and nitric oxide from biogenic sources. BEIS3 requires, as meteorological inputs, data files on solar radiation and air temperature. The Biogenic Landuse Database, Version 3 (BELD3) provides vegetation data needed to perform these calculations. BELD3 is available for the United States at a 1-km resolution.

Model Technical Contact Information:
Thomas E. Pierce
U.S. EPA - Mail Code: MD-80
Office of Research and Development (ORD)
National Exposure Research Laboratory (NERL)
Atmospheric Science Modeling Division (ASMD)
(919) 541-1375

The model was developed by George Pouliot/Ellen Kinnee (Dynamac Corp.) and Jeff Vukovich (MCNC).

Model Homepage: http://www.epa.gov/asmdnerl/biogen.html

User Information Back to Top
Technical Requirements
Computer Hardware
No minimum requirements
Compatible Operating Systems
Other Software Required to Run the Model
Download Information
The model is publicly available from U.S. EPA, Office of Research and Development, National Exposure Research Laboratory (NERL), Atmospheric Science Modeling Division (ASMD).
Using the Model
Basic Model Inputs
More complex model with greater input requirements, but no substantial modular or sub-model components.
Basic Model Outputs
BEIS3 creates a hourly, gridded emissions file in IO/API format that is input to air quality models such as the Community Multiscale Air Quality (CMAQ) modeling system. For further information on CMAQ, click here exit EPA
User Support
User's Guide Available?
The model is approved by EPA for regulatory uses. Documentation can be downloaded.
User Qualifications
The model user needs only moderate level of technical education and/or modeling experience.

Model Science Back to Top
Summary of Model Structure and Methods
Background information is available.

The model uses fixed (SI) units.

Governing equations are solved numerically.

Model Evaluation
Moderate model testing (evaluation) has been performed.

Sensitivity analysis has been performed.

Qualitative uncertainty analysis has been performed based on model assumptions and/or limitations.

The model has been internally and externally peer reviewed.

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