Articles | Volume 19, issue 3
https://doi.org/10.5194/gmd-19-1281-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-1281-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
11 Feb 2026
Model description paper |
| 11 Feb 2026
| 11 Feb 2026
TChem-atm (v2.0.0): scalable performance-portable multiphase atmospheric chemistry
Oscar H. Díaz-Ibarra
CORRESPONDING AUTHOR
Center for Computing Research, Sandia National Laboratories, Albuquerque, NM, USA
Samuel G. Frederick
Department of Climate, Meteorology, and Atmospheric Sciences University of Illinois Urbana-Champaign, Urbana, IL, USA
Jeffrey H. Curtis
Department of Climate, Meteorology, and Atmospheric Sciences University of Illinois Urbana-Champaign, Urbana, IL, USA
Zachary D'Aquino
Department of Climate, Meteorology, and Atmospheric Sciences University of Illinois Urbana-Champaign, Urbana, IL, USA
Peter A. Bosler
Center for Computing Research, Sandia National Laboratories, Albuquerque, NM, USA
Lekha Patel
Center for Computing Research, Sandia National Laboratories, Albuquerque, NM, USA
Cosmin Safta
Data Sciences and Computing, Sandia National Laboratories, Livermore, CA, USA
Matthew West
Department of Mechanical Science and Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Climate, Meteorology, and Atmospheric Sciences University of Illinois Urbana-Champaign, Urbana, IL, USA
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Short summary
We developed TChem-atm, a new open-source tool for simulating atmospheric chemistry and aerosols. As models become more detailed, traditional methods are too slow. TChem-atm runs on both standard processors and graphics processors, making these simulations faster and more efficient. The tool provides a foundation for next-generation models that improve predictions of air quality and climate.
We developed TChem-atm, a new open-source tool for simulating atmospheric chemistry and...
