Huang et al. (2025) Thermodynamical and Dynamical Background Characteristics and Microphysical Structures of the Mesoscale Convective Systems Over the Tibetan Plateau: A 7‐Year Statistic

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Identification

• Journal: Geophysical Research Letters
• Year: 2025
• Date: 2025-08-15
• Authors: Yue Huang, Wei Cheng, Shenming Fu, Jianhua Sun, Juanjuan Liu
• DOI: 10.1029/2025gl116463

Research Groups

Not specified in the provided text.

Short Summary

This study analyzes the vertical structure of Tibetan Plateau mesoscale convective systems (TP_MCSs) using a 7-year database, ERA5 reanalysis, and satellite data to identify the thermodynamic, dynamic, and microphysical drivers of their intensity and precipitation.

Objective

• To investigate the thermodynamical and dynamical background characteristics and microphysical structures of TP_MCSs to address the research gap caused by sparse observations.

Study Configuration

• Spatial Scale: Tibetan Plateau (Regional)
• Temporal Scale: 7 years

Methodology and Data

• Models used: ERA5 reanalysis
• Data sources: 7-year TP_MCS database, ERA5 reanalysis, and satellite observations

Main Results

• Stage-dependent characteristics: The development stage is characterized by peak convective intensity, the lowest 0 °C level, the largest hydrometeor diameters, and maximum rainfall rates.
• Convection modulation: Convective intensity is driven by coupled interactions between thermodynamical factors (temperature, humidity), dynamical factors (vertical motion, moisture transport), and microphysical characteristics of hydrometeors, which together regulate buoyancy, latent heating, and entrainment.
• Precipitation mechanisms: Precipitation is governed by a competition between enhancement mechanisms (buoyancy and moisture transport) and suppression mechanisms (dry and cold entrainment).

Contributions

• Provides a systematic understanding of the vertical structure of TP_MCSs, offering critical insights to improve convection parameterization in climate models.

Funding

Not specified in the provided text.

Citation

@article{Huang2025Thermodynamical,
  author = {Huang, Yue and Cheng, Wei and Fu, Shenming and Sun, Jianhua and Liu, Juanjuan},
  title = {Thermodynamical and Dynamical Background Characteristics and Microphysical Structures of the Mesoscale Convective Systems Over the Tibetan Plateau: A 7‐Year Statistic},
  journal = {Geophysical Research Letters},
  year = {2025},
  doi = {10.1029/2025gl116463},
  url = {https://doi.org/10.1029/2025gl116463}
}