Zhou et al. (2025) Impacts of Subseasonal Silk Road Pattern on Extreme Heat Events in Eurasia

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

Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2025
• Date: 2025-11-28
• Authors: Jie Zhou, Haipeng Yu, Yu Chen, Hongyu Luo, Yunsai Zhu, Ruoke Meng, Siyu Chen
• DOI: 10.1029/2025jd044508

Research Groups

Not specified in abstract.

Short Summary

This study investigates the subseasonal Silk Road Pattern (SRP) and its significant impact on the occurrence and development of individual extreme heat events in Eurasia, revealing its quasi-biweekly oscillation and its synergistic effect with the British Baikal Corridor Pattern (BBC) on 2 m temperature anomalies.

Objective

• To analyze the regulatory effect of the subseasonal Silk Road Pattern (SRP) on the occurrence and development process of single extreme heat events in Eurasia.

Study Configuration

• Spatial Scale: Eurasia (Eastern Europe, Mongolian Plateau, West Siberia).
• Temporal Scale: Subseasonal (quasi-biweekly oscillation), focusing on single extreme heat events.

Methodology and Data

• Models used: Not explicitly mentioned, likely atmospheric reanalysis or diagnostic analysis of observed/reanalysis data.
• Data sources: Not explicitly mentioned, but implies atmospheric data (e.g., 2 m temperature (T2m), atmospheric circulation, baroclinic energy).

Main Results

• The subseasonal Silk Road Pattern (SRP) exhibits a quasi-biweekly oscillation characteristic.
• Its occurrence and development are primarily driven by baroclinic energy extraction from the average westerly jet.
• SRP can explain approximately 40% of the 2 m temperature (T2m) spatial pattern, attributed to adiabatic heating from subsidence and horizontal advection of abnormal temperature.
• When considering the synergistic effects of SRP and the British Baikal Corridor Pattern (BBC), the latitude range of T2m anomalies expands, explaining approximately 70% of the T2m tripole anomaly pattern.
• SRP is identified as the main factor influencing positive T2m anomalies in Eastern Europe and the Mongolian Plateau.
• BBC primarily regulates negative T2m anomalies in West Siberia.
• The combined effect of SRP and BBC maintains the tripole T2m anomaly pattern across Eurasia.

Contributions

• Provides a thorough analysis of the regulatory role of subseasonal teleconnection waves on heat events in Eurasia.
• Offers a new dynamic perspective for improving the predictability of extreme heat events.

Funding

Not specified in abstract.

Citation

@article{Zhou2025Impacts,
  author = {Zhou, Jie and Yu, Haipeng and Chen, Yu and Luo, Hongyu and Zhu, Yunsai and Meng, Ruoke and Chen, Siyu},
  title = {Impacts of Subseasonal Silk Road Pattern on Extreme Heat Events in Eurasia},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2025},
  doi = {10.1029/2025jd044508},
  url = {https://doi.org/10.1029/2025jd044508}
}