Cheng et al. (2025) Quantifying Global Climate Change Impacts on Daily Record‐Breaking Temperature Events in China Over the Past Six Decades

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

Identification

• Journal: International Journal of Climatology
• Year: 2025
• Date: 2025-11-15
• Authors: Kemeng Cheng, Xueyuan Kuang, Yaocun Zhang, Danqing Huang
• DOI: 10.1002/joc.70191

Research Groups

[Not specified in abstract]

Short Summary

This study statistically analyzes record-breaking daily surface air temperature extremes across China from 1960 to 2023, revealing that summer high-temperature records occur more frequently than predicted while winter low-temperature records occur less frequently. It quantifies that climate-driven trends account for 10%–30% of these events, providing a reference for attributing changes in record-breaking events under non-stationary climate conditions.

Objective

• To characterize the statistical features of record-breaking temperature extremes and quantify how global climatic non-stationarity modulates their evolution at local scales.

Study Configuration

• Spatial Scale: National scale (China), utilizing data from 2299 meteorological stations.
• Temporal Scale: 64 years (1960 to 2023), based on daily surface air temperature data.

Methodology and Data

• Models used: Detrended variance-adjusted model.
• Data sources: Observational daily surface air temperature data from 2299 meteorological stations across China.

Main Results

• Summer record-breaking high-temperature events occur more frequently than theoretically predicted.
• Winter record-breaking low-temperature events occur less frequently than theoretically predicted.
• Post-2020 summers show a more pronounced acceleration in high-temperature record-breaking frequency compared to preceding periods.
• Climate-driven trends account for 10%–30% of daily record-breaking temperature events.
• Variance changes contribute merely 2% to daily record-breaking temperature events.

Contributions

• Quantitatively elucidates the contribution of global climate change to the observed intensification of summer record-breaking high-temperature events and the attenuation of winter record-low temperature extremes in recent decades.
• Establishes a theoretical reference for the attribution of changes in record-breaking events under non-stationary climate conditions.

Funding

[Not specified in abstract]

Citation

@article{Cheng2025Quantifying,
  author = {Cheng, Kemeng and Kuang, Xueyuan and Zhang, Yaocun and Huang, Danqing},
  title = {Quantifying Global Climate Change Impacts on Daily Record‐Breaking Temperature Events in China Over the Past Six Decades},
  journal = {International Journal of Climatology},
  year = {2025},
  doi = {10.1002/joc.70191},
  url = {https://doi.org/10.1002/joc.70191}
}