An improved version of the piecewise parabolic method advection scheme: description and performance assessment in a bidimensional test case with stiff chemistry in toyCTM v1.0.1

Mailler, Sylvain; Pennel, Romain; Menut, Laurent; Cholakian, Arineh

doi:https://doi.org/10.5194/gmd-16-7509-2023

Articles | Volume 16, issue 24

https://doi.org/10.5194/gmd-16-7509-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-16-7509-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 24

Development and technical paper

|

22 Dec 2023

Development and technical paper |

| 22 Dec 2023

An improved version of the piecewise parabolic method advection scheme: description and performance assessment in a bidimensional test case with stiff chemistry in toyCTM v1.0.1

Sylvain Mailler, Romain Pennel, Laurent Menut, and Arineh Cholakian

Model code and software

ToyCTM v1.0.1 + scripts used to produce the figures in the present study Sylvain Mailler, Romain Pennel, Laurent Menut, and Arineh Cholakian https://doi.org/10.5281/zenodo.10018761

ToyCTM v1.0.1 Sylvain Mailler and Romain Pennel https://doi.org/10.5281/zenodo.10018706

AdvBench (v1.0.0) Sylvain Mailler https://doi.org/10.5281/zenodo.7937121

Short summary

We show that a new advection scheme named PPM + W (piecewise parabolic method + Walcek) offers geoscientific modellers an alternative, high-performance scheme designed for Cartesian-grid advection, with improved performance over the classical PPM scheme. The computational cost of PPM + W is not higher than that of PPM. With improved accuracy and controlled computational cost, this new scheme may find applications in chemistry-transport models, ocean models or atmospheric circulation models.