Qin et al. (2025) Warm Rain Processes Affected by Explosion: Insights From First 3D Large‐Eddy Simulation and Implications for Weather Modification

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Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2025
• Date: 2025-08-12
• Authors: Zhizhi Qin, Jing Yang, Le Cao, Jiandong Wang, Jinghua Chen, Yan Yin, Bin Zhu, Chunsong Lu
• DOI: 10.1029/2025jd043357

Research Groups

Not specified in the provided text.

Short Summary

This study utilizes a coupled explosion and 3D large-eddy simulation model to demonstrate that explosions in warm cumulus clouds accelerate rain formation while simultaneously reducing maximum rain intensity.

Objective

• To investigate the impact of explosions (generated by artilleries and rockets) on the microphysics and rain formation processes of warm cumulus clouds.

Study Configuration

• Spatial Scale: 3D (Large-Eddy Simulation scale)
• Temporal Scale: Not specified (event-based simulation)

Methodology and Data

• Models used: Explosion model coupled offline with a 3D Large-Eddy Simulation (LES) model.
• Data sources: Numerical simulation.

Main Results

• Rain Formation Timing: Rain forms faster following an explosion.
• Rain Intensity: The maximum rain intensity is decreased.
• Physical Mechanism: The explosion creates negatively biased pressure bands, which enhance convergence and the collisional-coalescence process. This increases the size and quantity of raindrops, triggering faster precipitation.
• Feedback Effect: The accelerated rain formation reduces the upward transport of cloud droplets to higher levels, which ultimately leads to the observed decrease in maximum rain intensity.

Contributions

• Provides the first high-resolution simulation coupling an explosion model with a 3D LES model to isolate the effects of explosions from natural cloud evolution.
• Offers new theoretical insights into the microphysical mechanisms of weather modification techniques involving artilleries and rockets.

Funding

Not specified in the provided text.

Citation

@article{Qin2025Warm,
  author = {Qin, Zhizhi and Yang, Jing and Cao, Le and Wang, Jiandong and Chen, Jinghua and Yin, Yan and Zhu, Bin and Lu, Chunsong},
  title = {Warm Rain Processes Affected by Explosion: Insights From First 3D Large‐Eddy Simulation and Implications for Weather Modification},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2025},
  doi = {10.1029/2025jd043357},
  url = {https://doi.org/10.1029/2025jd043357}
}