Lin et al. (2025) Linking High‐Amplitude Quasi‐Stationary Waves With Concurrent Humid‐Heat Extremes in a Warming World

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

Identification

• Journal: Geophysical Research Letters
• Year: 2025
• Date: 2025-09-09
• Authors: Qiyan Lin, Jiacan Yuan, Mingfang Ting, Renhe Zhang
• DOI: 10.1029/2025gl116260

Research Groups

Not explicitly mentioned in the abstract.

Short Summary

This study investigates how high-amplitude quasi-stationary waves (QSWs), linked to concurrent humid-heat extremes in the Northern Hemisphere midlatitudes, respond to climate warming. Using a large ensemble climate model, the research finds that the climatological-mean amplitude of wavenumbers 3 and 7 QSWs increases in late summer with warming, leading to more frequent high-amplitude events and consequently increased regional frequencies of humid-heat extremes.

Objective

• To quantitatively assess how high-amplitude quasi-stationary waves (QSWs), which are linked to concurrent humid-heat extremes, respond to climate warming to better understand future risks.

Study Configuration

• Spatial Scale: Northern Hemisphere midlatitudes, regional.
• Temporal Scale: Late summer, climatological-mean, future projections, historical connections.

Methodology and Data

• Models used: A single model initial-condition large ensemble (specific model name not provided).
• Data sources: Model output from a single model initial-condition large ensemble.

Main Results

• The climatological-mean amplitude of wavenumbers 3 and 7 quasi-stationary waves (QSWs) increases in late summer as the climate warms.
• There is an increase in the frequency of high-amplitude Wave-3 and Wave-7 events.
• These changes are associated with increased regional frequencies of humid-heat extremes.
• The increase in humid-heat extremes is particularly pronounced in regions with strong historical connections to high-amplitude QSWs.

Contributions

• Provides a quantitative assessment of the response of QSWs to climate warming, addressing a previous knowledge gap.
• Helps identify specific regions that are characterized by high-impact concurrent humid-heat extremes.
• Improves the understanding of spatially heterogeneous changes in humid-heat extremes within a warming climate.

Funding

Not mentioned in the abstract.

Citation

@article{Lin2025Linking,
  author = {Lin, Qiyan and Yuan, Jiacan and Ting, Mingfang and Zhang, Renhe},
  title = {Linking High‐Amplitude Quasi‐Stationary Waves With Concurrent Humid‐Heat Extremes in a Warming World},
  journal = {Geophysical Research Letters},
  year = {2025},
  doi = {10.1029/2025gl116260},
  url = {https://doi.org/10.1029/2025gl116260}
}