Configuration and evaluation of a global unstructured mesh atmospheric model (GRIST-A20.9) based on the variable-resolution approach

Zhou, Yihui; Zhang, Yi; Li, Jian; Yu, Rucong; Liu, Zhuang

doi:https://doi.org/10.5194/gmd-13-6325-2020

Articles | Volume 13, issue 12

https://doi.org/10.5194/gmd-13-6325-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-6325-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 12

Model evaluation paper

|

14 Dec 2020

Model evaluation paper |

| 14 Dec 2020

Configuration and evaluation of a global unstructured mesh atmospheric model (GRIST-A20.9) based on the variable-resolution approach

Yihui Zhou, Yi Zhang, Jian Li, Rucong Yu, and Zhuang Liu

Supplement

https://doi.org/10.5194/gmd-13-6325-2020-supplement

Data sets

Quasi-uniform and Variable-resolution grid data for GRIST GRIST-Dev https://doi.org/10.5281/zenodo.3817060

Model code and software

Frozen code version of ParGRIST-A20.9 (including running and post-processing scripts) GRIST-Dev https://doi.org/10.5281/zenodo.4049020

Short summary

This paper explores the configuration of a global atmospheric model (global-to-regional integrated forecast system-atmosphere; GRIST-A) with various multiresolution grids. The model performance is evaluated from dry dynamics to simple physics and full physics. The model is able to resolve the fine-scale structures in the grid-refinement region, and the adverse impact due to the mesh transition and the coarse-resolution area can be controlled well.