Lee et al. (2026) Mechanism for initiation and development of small-scale convective cells during KPOP-MS field campaign: A case study on 30 July 2023

Identification

• Journal: Atmospheric Research
• Year: 2026
• Date: 2026-09-23
• Authors: Jeong-Eun Lee, GyuWon Lee
• DOI: 10.1016/j.atmosres.2026.109354

Research Groups

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Research Groups

• BK21 Weather Extremes Education & Research Team, Department of Atmospheric Sciences, Center for Atmospheric Remote sensing (CARE), Kyungpook National University, Republic of Korea

Short Summary

This study investigates the roles of sea-breeze circulation and inflow-outflow interactions associated with cold pool dynamics in the evolution of convective cells. The results highlight the critical role of these interactions in controlling the full life cycle of convective cells.

Objective

• Investigate the small-scale convective mechanisms that contributed to the initiation, development, and dissipation of convective cells on 30 July 2023 during the KPOP-MS field campaign

Study Configuration

• Spatial Scale: Local scale (Korean Peninsula)
• Temporal Scale: Hourly resolution for a period of several hours

Methodology and Data

• Models used: Dual-polarimetric radar products, gridded AWS data, storm tracker, and disdrometer
• Data sources: Operational radar volume data, Automated Weather Stations (AWS), rawinsonde data, and remote-sensing instruments

Main Results

• The merger between Storm 1 and Storm 2 contributed to the rapid growth of Storm 2.
• The later merger between Storm 2 and Storm 3 formed the main convective system that subsequently affected the SMA.
• CPs tend to emerge shortly after CC development and primarily expand in the downstream or lateral directions relative to the CC motion.

Contributions

• This study provides insights into how CCs initiated through surface heating and along the SB front and subsequently redeveloped over densely populated urban areas.
• The results highlight the critical role of interactions among the SB circulation, CP dynamics, and localized convergence in controlling the full life cycle of the CCs.

Funding

• Korea Precipitation Observation Program (KPOP)
• International Collaborative Experiments for Mesoscale Convective Systems in the Seoul Metropolitan Area (KPOP-MS)

Citation

@article{Lee2026Mechanism,
  author = {Lee, Jeong-Eun and Lee, GyuWon},
  title = {Mechanism for initiation and development of small-scale convective cells during KPOP-MS field campaign: A case study on 30 July 2023},
  journal = {Atmospheric Research},
  year = {2026},
  doi = {10.1016/j.atmosres.2026.109354},
  url = {https://doi.org/10.1016/j.atmosres.2026.109354}
}