Ma et al. (2025) Temperature Is Surpassing Precipitation as the Dominant Driver of Flash Drought Acceleration Under Climate Warming

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

Identification

• Journal: Geophysical Research Letters
• Year: 2025
• Date: 2025-12-30
• Authors: Feng Ma, H. Li
• DOI: 10.1029/2025gl118457

Research Groups

Not available from the provided text.

Short Summary

This study quantifies the relative contributions of various drivers to flash droughts, revealing that while precipitation has historically been dominant, temperature is projected to become the primary driver in most regions under climate warming.

Objective

• To systematically quantify the relative contributions of flash drought drivers (precipitation deficits, high temperature, increased radiation, strong winds, and enhanced land-atmosphere coupling) and understand their temporal evolution, particularly under climate warming.

Study Configuration

• Spatial Scale: 27 analyzed regions globally, including western North America, northern Asia, southeastern Asia, and central Africa.
• Temporal Scale: Historical period and future projections, with transitions generally before 2060 for certain regions.

Methodology and Data

• Models used: Multi-model ensemble mean.
• Data sources: Not explicitly mentioned, but implied to be climate model outputs for the multi-model ensemble.

Main Results

• Precipitation has historically been the dominant driver of flash droughts, followed by temperature.
• Under climate warming, precipitation's contribution is declining, while temperature's role is becoming increasingly prominent.
• The multi-model ensemble mean projects that temperature will surpass precipitation as the dominant driver in the majority (>15) of the 27 analyzed regions.
• An earlier transition (generally before 2060) is projected for regions including western North America, northern Asia, southeastern Asia, and central Africa.

Contributions

• Provides a systematic quantification of the relative contributions and temporal evolution of multiple flash drought drivers.
• Identifies a critical transformation in drought mechanisms, projecting temperature to become the dominant driver over precipitation in a warming climate.
• Underscores the urgency of implementing climate-resilient drought adaptation frameworks.

Funding

Not available from the provided text.

Citation

@article{Ma2025Temperature,
  author = {Ma, Feng and Li, H.},
  title = {Temperature Is Surpassing Precipitation as the Dominant Driver of Flash Drought Acceleration Under Climate Warming},
  journal = {Geophysical Research Letters},
  year = {2025},
  doi = {10.1029/2025gl118457},
  url = {https://doi.org/10.1029/2025gl118457}
}