CMAS: Community Modeling and Analysis System

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SMOKE version 5.1 Update Summary

For full release notes, click the RELEASE NOTES link above

This release focuses on bug fixes and minor enhancements to the core SMOKE programs and utility tools. Work was done to test SMOKE with additional compilers and more stringent compiler checking. Updates were also prompted by EPA's work on the 2022v1 Emissions Modeling Platform.

Several core SMOKE programs have been updated:

Laypoint, Movesmrg, Mrgpt, Smkinven, Smkreport, Tmpbeis4

Additionally, the following SMOKE utility tools were updated:

Gentpro, Geofac

This is the official SMOKE website hosted by the Center for Environmental Modeling for Policy Development (CEMPD) at the University of North Carolina at Chapel Hill. SMOKE is an active open-source development project supported and distributed by the CEMPD through the Community Modeling and Analysis System Center.

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System Requirements

O/S	Linux
Processor	64-bit x86
Memory	>2 Gb RAM
Disk Space	> 40 Gb
Software	I/O API, netCDF, Fortran ( Portland Group \| Intel )

SMOKE-ready Data

SMOKE input data consist of emissions inventories, temporal and chemical speciation profiles, spatial surrogates, gridded meteorology and land use data, and other ancillary files for specifying the timing, location, and chemical nature of emissions. SMOKE is distributed with example data for getting started with the model. The example files distributed with SMOKE are for demonstration purposes only, they are not meant for real-world modeling applications.

The primary source for non-meteorology SMOKE input data is the U.S. EPA Clearinghouse for Inventories and Emissions Factors (CHIEF). The U.S. EPA Office of Air Quality Planning and Standards (OAQPS) Emissions Inventory and Analysis Group (EIAG) provides SMOKE inputs for different rule-making modeling platforms. These platforms include not only the NEI for both criteria air pollutants (CAPs) and hazardous air pollutants (HAPs), but also all of the SMOKE ancillary data files created by EPA for use in SMOKE. EPA uses CHIEF to provide these data.

Meteorology data must be generated for specific SMOKE applications using either MM5, WRF, or a similar model. The output data from meteorology models must be formatted for SMOKE using a program like MCIP.

History of SMOKE

The Sparse Matrix Operator Kernel Emissions (SMOKE) Modeling System was originally developed at MCNC to integrate emissions data processing with high-performance computing (HPC) sparse-matrix algorithms. SMOKE is now under active development at the Institute for the Environment and is partially supported by the Community Modeling and Analysis System (CMAS).

SMOKE is primarily an emissions processing system designed to create gridded, speciated, hourly emissions for input into a variety of air quality models such as CMAQ, REMSAD, CAMX and UAM. SMOKE supports area, biogenic, mobile (both onroad and nonroad), and point source emissions processing for criteria, particulate, and toxic pollutants. For biogenic emissions modeling, SMOKE uses the Biogenic Emission Inventory System. SMOKE is also integrated with the on-road emissions model MOVES.

The sparse matrix approach used throughout SMOKE permits rapid and flexible processing of emissions data. Rapid processing is possible because SMOKE uses a series of matrix calculations rather than a less-efficient sequential approach used by previous systems. Flexible processing comes from splitting the processing steps of inventory growth, controls, chemical speciation, temporal allocation, and spatial allocation into independent steps whenever possible. The results from these steps are merged together in the final stage of processing using vector-matrix multiplication. This means that individual steps (such as adding a new control strategy, or processing for a different grid) can be performed and merged without having to redo all of the other processing steps.

SMOKE is written in Fortran 90 and is designed to run on a variety of UNIX platforms. We currently provide executables for Linux and the source code is available for download and can easily be compiled for your particular system. We do not support running SMOKE on Windows, due to the inherent limitations of that system. The current version of SMOKE is version 4.9, although earlier versions are still available for download.

Community Modeling and Analysis System

SMOKE

(Sparse Matrix Operator Kernel Emissions) Processing System