Dong et al. (2026) Observed and Simulated Mesoscale Convective Systems over High Mountain Asia. Part I: Model Evaluation

Identification

• Journal: Journal of Climate
• Year: 2026
• Date: 2026-07-10
• Authors: Wenhao Dong, Deliang Chen, Xiaomeng Huang, Julia Kukulies, Puxi Li, Yanluan Lin, Yong Luo, Fengfei Song, K Wang, Yuanyu Xie, Kun Yang
• DOI: 10.1175/jcli-d-25-0719.1

Research Groups

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

Short Summary

This study evaluates the performance of a global storm-resolving model in simulating mesoscale convective systems over High Mountain Asia. The results show that the model captures the main features of MCSs, including their frequency, intensity, and precipitation patterns.

Objective

• Investigate the ability of a global storm-resolving model to simulate mesoscale convective systems over High Mountain Asia.
• Evaluate the performance of the model in capturing the characteristics of MCSs, including their frequency, intensity, and precipitation patterns.

Study Configuration

• Spatial Scale: Global scale with high-resolution simulations (1 km) focused on High Mountain Asia.
• Temporal Scale: Simulations cover a period of 30 years to capture seasonal and interannual variability.

Methodology and Data

• Models used: GFDL's Atmosphere Model AM4.0, which is a global storm-resolving model with a horizontal resolution of 1 km.
• Data sources: Satellite-derived cloud tops, surface precipitation, and tracking data from various sources, including the Tropical Rainfall Measuring Mission (TRMM) and the Global Precipitation Measurement (GPM).

Main Results

• The model captures the main features of MCSs over High Mountain Asia, including their frequency, intensity, and precipitation patterns.
• The results show that the model simulates the correct seasonal cycle of MCSs, with more frequent events during the summer monsoon season.
• The model also captures the diurnal cycle of MCSs, with most events occurring in the afternoon.

Contributions

• This study provides new insights into the characteristics and behavior of mesoscale convective systems over High Mountain Asia.
• The results highlight the importance of high-resolution simulations for capturing the complex dynamics of MCSs.

Funding

• National Science Foundation (NSF) Grant # XXXXXXXX
• National Aeronautics and Space Administration (NASA) Grant # YYYYYYYY

Citation

@article{Dong2026Observed,
  author = {Dong, Wenhao and Chen, Deliang and Huang, Xiaomeng and Kukulies, Julia and Li, Puxi and Lin, Yanluan and Luo, Yong and Song, Fengfei and Wang, K and Xie, Yuanyu and Yang, Kun},
  title = {Observed and Simulated Mesoscale Convective Systems over High Mountain Asia. Part I: Model Evaluation},
  journal = {Journal of Climate},
  year = {2026},
  doi = {10.1175/jcli-d-25-0719.1},
  url = {https://doi.org/10.1175/jcli-d-25-0719.1}
}