HETerogeneous vectorized or Parallel (HETPv1.0): an updated inorganic heterogeneous chemistry solver for the metastable-state NH4+–Na+–Ca2+–K+–Mg2+–SO42−–NO3−–Cl−–H2O system based on ISORROPIA II

Miller, Stefan J.; Makar, Paul A.; Lee, Colin J.

doi:https://doi.org/10.5194/gmd-17-2197-2024

Articles | Volume 17, issue 6

https://doi.org/10.5194/gmd-17-2197-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-17-2197-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 6

Development and technical paper

|

19 Mar 2024

Development and technical paper |

| 19 Mar 2024

HETerogeneous vectorized or Parallel (HETPv1.0): an updated inorganic heterogeneous chemistry solver for the metastable-state NH₄⁺–Na⁺–Ca²⁺–K⁺–Mg²⁺–SO₄²⁻–NO₃⁻–Cl⁻–H₂O system based on ISORROPIA II

Stefan J. Miller, Paul A. Makar, and Colin J. Lee

Supplement

https://doi.org/10.5194/gmd-17-2197-2024-supplement

Model code and software

HETP: An updated inorganic heterogeneous chemistry solver for metastable state based on ISORROPIA II Stefan Miller https://doi.org/10.5281/zenodo.8164704

Short summary

This work outlines a new solver written in Fortran to calculate the partitioning of metastable aerosols at thermodynamic equilibrium based on the forward algorithms of ISORROPIA II. The new code includes numerical improvements that decrease the computational speed (compared to ISORROPIA II) while improving the accuracy of the partitioning solution.