Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 14, issue 11
Articles | Volume 14, issue 11
https://doi.org/10.5194/gmd-14-6919-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-14-6919-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 11
Development and technical paper
 | 
16 Nov 2021
Development and technical paper |  | 16 Nov 2021

Topography-based local spherical Voronoi grid refinement on classical and moist shallow-water finite-volume models

Luan F. Santos and Pedro S. Peixoto

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Latest update: 23 Oct 2025
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Short summary
The Andes act as a wall in atmospheric flows and play an important role in the weather of South America but are currently underrepresented in weather and climate models. In this work, we propose grids that better capture the mountains and, using idealized dynamical models, study the effects caused by the use of such grids. While possibly improving forecasts for short periods, the grids introduce spurious numerical (nonphysical) effects, which can demand added caution from model developers.
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