Xu et al. (2026) Investigating Climate Change Impacts on the 2020 Extreme Meiyu Through Global Variable‐Resolution Ensemble Subseasonal Hindcasts

⚠️ 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: 2026-09-01
• Authors: Mingyue Xu, Chun Zhao
• DOI: 10.1029/2025jd045982

Research Groups

• Institute of Atmospheric Physics, Chinese Academy of Sciences
• University of Science and Technology of China

Short Summary

This study investigates the impact of climate change on extreme Meiyu rainfall over the middle and lower reaches of the Yangtze River using global variable-resolution ensemble subseasonal hindcasts. The results show that post-1980 climate change enhanced 2020 extreme Meiyu rainfall by approximately 14.67%.

Objective

• Investigate the effect of climate change on extreme Meiyu rainfall over the middle and lower reaches of the Yangtze River

Study Configuration

• Spatial Scale: Middle and lower reaches of the Yangtze River (MLYR) region in China
• Temporal Scale: Monthly scale, with a focus on the 2020 Meiyu season

Methodology and Data

• Models used: Global variable-resolution ensemble subseasonal hindcasts
• Data sources: Subseasonal hindcasts, reanalysis data

Main Results

• Post-1980 climate change enhanced extreme Meiyu rainfall over the MLYR region by approximately 14.67% at monthly scale.
• Climate change intensified heavy and extreme precipitation occurrences while decreasing light and moderate precipitation frequency.

Contributions

• This study highlights the value of global variable-resolution subseasonal simulations for attributing changes in Meiyu precipitation and its associated large-scale circulation background under climate change.

Funding

• National Natural Science Foundation of China (Grant No. 41975083)
• Chinese Academy of Sciences Strategic Pilot Project (Grant No. XDA19040201)

Citation

@article{Xu2026Investigating,
  author = {Xu, Mingyue and Zhao, Chun and Gu, Jun and Feng, Jiawang and Li, Gudongze and Zhang, Ziyu and Lin, Shenfu and Ma, Yuanyuan and Liu, Fei and Hu, Zhiyuan},
  title = {Investigating Climate Change Impacts on the 2020 Extreme Meiyu Through Global Variable‐Resolution Ensemble Subseasonal Hindcasts},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2026},
  doi = {10.1029/2025jd045982},
  url = {https://doi.org/10.1029/2025jd045982}
}