Matsugishi et al. (2026) Resolution Dependence in a Global Atmospheric Simulation From km to 220 m Grid Spacing

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Geophysical Research Letters
• Year: 2026
• Date: 2026-10-08
• Authors: Shuhei Matsugishi, Masaki Satoh, Tomoki Ohno
• DOI: 10.1029/2026gl124411

Research Groups

• Department of Atmospheric Sciences, University of California, Los Angeles (UCLA)
• National Center for Atmospheric Research (NCAR)

Short Summary

This study investigates the resolution dependence and turbulence scheme sensitivity in a global large-eddy simulation (GLES) of deep convection. The results show that precipitation intensity converges across different turbulence schemes as resolution increases.

Objective

• Investigate the effects of mesh resolution on the simulation of deep convection and associated precipitation patterns

Study Configuration

• Spatial Scale: Global domain with realistic topography, simulated at a 220-m mesh resolution
• Temporal Scale: Not specified in the abstract

Methodology and Data

• Models used: Large-eddy simulation (LES) model
• Data sources: Not specified in the abstract

Main Results

• Precipitation intensity weakens as resolution increases, with convergence across different turbulence schemes at high resolutions
• Zonal mean precipitation differs substantially across turbulence schemes at km-scale resolution but decreases as resolution increases
• Low cloud fraction decreases with increasing resolution
• High cloud fraction shows varying resolution dependence depending on the turbulence scheme

Contributions

• This study provides new insights into the effects of mesh resolution and turbulence schemes on deep convection simulations, contributing to the development of more accurate global climate models.

Funding

• Not specified in the abstract

Citation

@article{Matsugishi2026Resolution,
  author = {Matsugishi, Shuhei and Satoh, Masaki and Ohno, Tomoki},
  title = {Resolution Dependence in a Global Atmospheric Simulation From km to 220 m Grid Spacing},
  journal = {Geophysical Research Letters},
  year = {2026},
  doi = {10.1029/2026gl124411},
  url = {https://doi.org/10.1029/2026gl124411}
}