Fu et al. (2025) Intensifying Hydroclimate Whiplash From a 3D Perspective

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

Identification

• Journal: Water Resources Research
• Year: 2025
• Date: 2025-11-01
• Authors: Jianyu Fu, Yang Lu, Bingjun Liu, Xuezhi Tan, Jia Wei, Xuejin Tan, Zeqin Huang, Xiaohong Chen
• DOI: 10.1029/2025wr040607

Research Groups

Not specified in abstract.

Short Summary

This study investigates the spatiotemporal evolution of contiguous hydroclimate whiplash (HCW) extremes globally from 1982 to 2015 using a 3D scanning approach, revealing a significant underestimation of HCW frequency and affected areas by traditional pixel-level analyses.

Objective

• To investigate the spatiotemporal evolution of contiguous hydroclimate whiplash (HCW) extremes globally from 1982 to 2015 from a 3D perspective (latitude × longitude × time).

Study Configuration

• Spatial Scale: Global (latitude × longitude)
• Temporal Scale: 1982 to 2015

Methodology and Data

• Models used: Not specified in abstract.
• Data sources: Not specified in abstract. The methodology involves a "3D scanning approach" to identify contiguous extreme events.

Main Results

• Global HCW extremes have been underestimated by an average of 20% in frequency and nearly 50% in affected areas when using pixel-level analysis compared to the 3D scanning approach.
• Contiguous HCW extremes are predominantly drying events, characterized by higher transition velocity and frequency.
• Wet-dominant HCW extremes have shown a significant increase in frequency between 1982 and 2015.
• Spatially, monsoon regions in the Western Pacific exhibit the highest comprehensive magnitude of contiguous HCW extremes, with high transition velocity and frequency.
• Increased precipitation plays a crucial role in the changes of global contiguous HCW extremes.
• Variations in vegetation coverage also significantly contribute to the intensification of these extremes.

Contributions

• Introduces and applies a novel 3D perspective (latitude × longitude × time) to analyze the spatiotemporal evolution of contiguous hydroclimate whiplash (HCW) extremes, addressing limitations of previous pixel-level studies.
• Quantifies the significant underestimation (20% in frequency, nearly 50% in affected areas) of global HCW extremes by traditional pixel-level analyses.
• Provides a global assessment of HCW characteristics, identifying dominant event types (drying), regional hotspots (Western Pacific monsoon regions), and influencing factors (precipitation, vegetation coverage).

Funding

Not specified in abstract.

Citation

@article{Fu2025Intensifying,
  author = {Fu, Jianyu and Lu, Yang and Liu, Bingjun and Tan, Xuezhi and Wei, Jia and Tan, Xuejin and Huang, Zeqin and Chen, Xiaohong},
  title = {Intensifying Hydroclimate Whiplash From a 3D Perspective},
  journal = {Water Resources Research},
  year = {2025},
  doi = {10.1029/2025wr040607},
  url = {https://doi.org/10.1029/2025wr040607}
}