Chen et al. (2025) Asymmetric East‐West Changes in Mountain Fog Driven by Urbanization and Climate Warming

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Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2025
• Date: 2025-11-29
• Authors: Yi‐Ying Chen, Yueh‐Tzu Hung, Chao‐Tzuen Cheng, I‐Chun Tsai
• DOI: 10.1029/2025jd044293

Research Groups

This study investigates the individual and combined impacts of urbanization and climate warming on montane fog dynamics, revealing that urbanization shifts the fog belt upward while warming-induced circulation changes cause asymmetric fog distribution, exacerbating water stress differentials across mountain flanks.

Objective

• To investigate the individual and combined impacts of rapid urbanization and climate change on fog dynamics in montane climates.

Study Configuration

• Spatial Scale: Regional, focusing on the Central Mountain Range (CMR) in Taiwan.
• Temporal Scale: Implied long-term changes and dynamics related to climate change and urbanization scenarios.

Methodology and Data

• Models used: High-resolution weather model.
• Data sources: Full factorial design for scenario simulation; aerosols were excluded from the analysis.

Main Results

• Urbanization shifts the fog belt upward, leading to reduced fog occurrence in lowlands and enhanced fog at mid-elevations.
• Warming-induced circulation changes decrease fog in the west of the Central Mountain Range (CMR) but increase fog formation in the east.
• Complex interactions among local terrain, urbanization, and climate warming result in asymmetric changes in mountain fog.
• These asymmetric changes can worsen the water stress differential between the western and eastern flanks of the CMR in Taiwan.

Contributions

• Quantifies the individual and combined effects of urbanization and climate warming on montane fog dynamics.
• Reveals the upward shift of the fog belt due to urbanization and the distinct regional impacts of warming-induced circulation changes.
• Highlights the complex interplay of drivers leading to asymmetric changes in mountain fog, with implications for water stress differentials.

Funding

Citation

@article{Chen2025Asymmetric,
  author = {Chen, Yi‐Ying and Hung, Yueh‐Tzu and Cheng, Chao‐Tzuen and Tsai, I‐Chun},
  title = {Asymmetric East‐West Changes in Mountain Fog Driven by Urbanization and Climate Warming},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2025},
  doi = {10.1029/2025jd044293},
  url = {https://doi.org/10.1029/2025jd044293}
}