Zhao et al. (2025) Cumulative Effect of Synoptic‐Scale Storms on Decadal Mixed‐Layer Temperature Variability in the Mid‐Latitude North Pacific

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

Identification

• Journal: Geophysical Research Letters
• Year: 2025
• Date: 2025-12-10
• Authors: Chen Zhao, Xiaopei Lin, Ziguang Li, Yu Zhang
• DOI: 10.1029/2025gl118338

Research Groups

[Information not available in the provided abstract.]

Short Summary

This study investigates the contribution of synoptic-scale storms to decadal mixed-layer temperature variability in the mid-latitude North Pacific. It reveals that frequent storms lead to cumulative mixed-layer cooling, primarily driven by anomalous meridional Ekman heat transport, a process linked to the strength of the Aleutian Low.

Objective

• To clarify the contribution of synoptic-scale storms to decadal variability of mixed-layer temperature in the mid-latitude North Pacific, complementing previous studies that emphasized large-scale climate modes.

Study Configuration

• Spatial Scale: Mid-latitude North Pacific
• Temporal Scale: Decadal variability within the period 1950–2020

Methodology and Data

• Models used: ERA5 reanalysis (used for mixed-layer heat budget analysis)
• Data sources: Oceanic observations, ERA5 reanalysis

Main Results

• Frequent storms contribute to a cumulative cooling of mixed-layer temperature.
• This cooling is primarily attributed to anomalous meridional Ekman heat transport.
• During storm-active periods, a stronger Aleutian Low correlates with increased storm activity and enhanced cumulative Ekman cooling.
• During storm-weak periods, the opposite pattern is observed.

Contributions

• Highlights the critical importance of storm frequency in influencing decadal upper-ocean variability.
• Suggests that incorporating storm frequency into high-resolution models can improve decadal climate prediction skill.

Funding

[Information not available in the provided abstract.]

Citation

@article{Zhao2025Cumulative,
  author = {Zhao, Chen and Lin, Xiaopei and Li, Ziguang and Zhang, Yu},
  title = {Cumulative Effect of Synoptic‐Scale Storms on Decadal Mixed‐Layer Temperature Variability in the Mid‐Latitude North Pacific},
  journal = {Geophysical Research Letters},
  year = {2025},
  doi = {10.1029/2025gl118338},
  url = {https://doi.org/10.1029/2025gl118338}
}