The SAPRC atmospheric chemical mechanism  generation system (MechGen)

Carter, William P. L.; Jiang, Jia; Wang, Zhizhao; Barsanti, Kelley C.

doi:10.5194/gmd-18-8461-2025

Articles | Volume 18, issue 21

https://doi.org/10.5194/gmd-18-8461-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-8461-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 21

Model description paper

|

13 Nov 2025

Model description paper |

| 13 Nov 2025

The SAPRC atmospheric chemical mechanism generation system (MechGen)

William P. L. Carter, Jia Jiang, Zhizhao Wang, and Kelley C. Barsanti

Supplement

https://doi.org/10.5194/gmd-18-8461-2025-supplement

Model code and software

SAPRC/MechGen: MechGenv1.1 William P. L. Carter et al. https://doi.org/10.5281/zenodo.16622705

Short summary

The SAPRC Atmospheric Chemical Mechanism Generation System (MechGen) generates explicit chemical reaction mechanisms for organic compounds. MechGen has been used for decades in the development of the widely used SAPRC mechanisms. This paper, detailing the software system, and a companion paper, detailing the chemical basis, represent the first complete documentation of MechGen. This paper includes examples and instructions for generating explicit and reduced mechanisms.