Welcome to R-NESHAPS project!

An R package for fitting air dispersion models to field data.

The project summary page you can find here.

1a. Identification

acronym: Rneshaps
short: Functions for working with CAP88-PC version 1 concentration output files

2. Author name and affiliation

Donald H. MacQueen, Lawrence Livermore National Laboratory

3. Software completion date:

Original code spring 2009; current package version spring 2013.

4. Brief description

This software is used to combine output files from US EPA CAP88-PC software (http://www.epa.gov/radiation/assessment/CAP88/aboutcap88.html) and estimate input parameters for CAP88-PC. Also includes features for tabular and graphical review of results.

5. Method of solution

The software uses industry-standard nonlinear optimization routines to search for input parameters that provide a best fit of model output to data.

6. Computer(s) for which software is written

Linux, Mac OS, Windows

7. Operating system:

Any current or recent version of Linux, Mac OS, or Windows

8. Programming Languages used:

R (95%), FORTRAN (5%)

9. Software limitations

Available RAM, but this limit is unlikely to be encountered in typical usage. Software has been tested only on Mac OS, but R is multi-platform, so this software is expected to function on all platforms supported by R, provided users meet the requirements listed in item 11.

10. Unique features of the software

Designed specifically for CAP88-PC output files, and for estimating CAP88-PC input parameters.

11. Related and auxiliary software

Users must have R software and a compatible FORTRAN compiler.

12. Other programming or operating information or restrictions

R software is licensed under GPL 2, so users must comply with GPL 2 license terms.

13. Hardware requirements

Must support any recent Linux, Macintosh, or Windows operating system.

14. Time requirements

Longest run time encountered to date is a few minutes, depending on what element of the software package is being used.

15. References

(group 1)
A Best Fit Approach to Estimating Multiple Diffuse Source Terms Using Ambient Air Monitoring Data and an Air Dispersion Model, LLNL-JRNL-608237-DRAFT; accepted for publication in Operational Radiation Safety, March 2013.

(group 2)
R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0. URL http://www.R-project.org/; 2012.

U.S. Environmental Protection Agency. User's guide for CAP88-PC Version 1. EPA 402-B-92-001; 1992. Available at http://www.epa.gov/rpdweb00/docs/cap88/402-b-92-001.pdf. Accessed 20 December 2012.