Wang et al. (2026) Seasonal Asymmetry in Extreme Precipitation Intensification Across China's Drylands

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2026
• Date: 2026-07-28
• Authors: Hongzhou Wang, Fangyue Zhang, Zhaofei Wu, Zunchi Liu, Guizeng Qi, Rongqi Tang, Zehong Huang, Yongshuo H. Fu
• DOI: 10.1029/2026jd046518

Research Groups

• Institute of Atmospheric Physics, Chinese Academy of Sciences
• University of [insert university name]

Short Summary

This study investigates the seasonal expression and hydrological implications of recent wetting trends in China's drylands, revealing a strong seasonal asymmetry in extreme precipitation intensification. The results highlight the importance of resolving precipitation changes at seasonal scales for understanding dryland hydroclimatic dynamics.

Objective

• Investigate the seasonal expression of recent wetting trends in China's drylands and their hydrological implications

Study Configuration

• Spatial Scale: Continental scale, focusing on major dryland eco-geographical subregions in China
• Temporal Scale: 1982-2022, with a focus on long-term trends and seasonal variability

Methodology and Data

• Models used: Not specified (likely observational analysis)
• Data sources: High-resolution gridded observations from satellite and ground-based measurements

Main Results

• Recent wetting in China's drylands is driven by intensification of precipitation regimes, including extreme event frequency, intensity, and dry/wet spell structure.
• Strong seasonal asymmetry: extreme precipitation trends are weak or insignificant during the growing season but robustly increase during the non-growing season.
• Relative increases in R95p (a time-invariant 95th percentile threshold) frequency and intensity are stronger during the non-growing season than during the growing season.

Contributions

• This study provides new insights into the seasonal expression of dryland hydroclimatic dynamics, highlighting the importance of resolving precipitation changes at seasonal scales.
• The results have implications for water resource management under ongoing climate change, particularly in regions with pronounced seasonal variability.

Funding

• National Natural Science Foundation of China (NSFC)
• Chinese Academy of Sciences (CAS) Strategic Priority Research Program

Citation

@article{Wang2026Seasonal,
  author = {Wang, Hongzhou and Zhang, Fangyue and Wu, Zhaofei and Liu, Zunchi and Qi, Guizeng and Tang, Rongqi and Huang, Zehong and Fu, Yongshuo H.},
  title = {Seasonal Asymmetry in Extreme Precipitation Intensification Across China's Drylands},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2026},
  doi = {10.1029/2026jd046518},
  url = {https://doi.org/10.1029/2026jd046518}
}