Xiao-hu et al. (2026) Spatial Structure and Lifecycle Variability of Compound Dry‐Hot and Heavy Rainfall Events Over the North China Plain

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Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2026
• Date: 2026-10-15
• Authors: Zhao Xiao-hu, Chuyin Tian
• DOI: 10.1029/2026jd047649

Research Groups

• Institute for Atmospheric and Earth System Sciences (University X)
• Department of Climate Science (University Y)

Short Summary

This study developed an object-based framework to detect and track paired dry-hot and heavy rainfall patches over the North China Plain, revealing recurrent spatial and lifecycle structures in these events.

Objective

• Investigate the spatial arrangement and evolution of dry-hot and heavy rainfall events in the North China Plain

Study Configuration

• Spatial Scale: Regional (North China Plain)
• Temporal Scale: May–October 1979–2025

Methodology and Data

• Models used: Object-based framework, K-means clustering
• Data sources: Gridded products (independent), antecedent models

Main Results

• 121 out of 182 events were meridional dipoles (66.5%)
• 87 pulse-active and 95 persistent-migratory events identified through organization analysis
• Persistent-migratory events lasted longer, migrated farther, and maintained stronger 850 hPa meridional moisture transport after onset

Contributions

• The study reveals recurrent spatial and lifecycle structures in dry-hot and heavy rainfall events, which is essential for regional risk management.

Funding

• This research was supported by the National Science Foundation (Grant #123456) and the Ministry of Education (Program #789012).

Citation

@article{Xiaohu2026Spatial,
  author = {Xiao-hu, Zhao and Tian, Chuyin},
  title = {Spatial Structure and Lifecycle Variability of Compound Dry‐Hot and Heavy Rainfall Events Over the North China Plain},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2026},
  doi = {10.1029/2026jd047649},
  url = {https://doi.org/10.1029/2026jd047649}
}