Pan et al. (2026) Interannual Variability of Compound Hot‐Dry Events Over the Tibetan Plateau

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

Identification

• Journal: Journal of Geophysical Research Atmospheres
• Year: 2026
• Date: 2026-09-01
• Authors: Rongyun Pan, Tianjun Zhou, Kexin Gui, Lixia Zhang, Wenxia Zhang, Jie Jiang
• DOI: 10.1029/2026jd046858

Research Groups

• Institute of Tibetan Plateau Research, Chinese Academy of Sciences
• Department of Atmospheric Science, University of Colorado Boulder

Short Summary

This study investigates the interannual variability of summer compound hot-dry events (CHDEs) in the Tibetan Plateau and identifies key large-scale climate drivers. The research reveals that El Niño-Southern Oscillation (ENSO) is a primary driver of CHDEs, with different responses to Eastern Pacific (EP) El Niño and Central Pacific (CP) La Niña events.

Objective

• Investigate the interannual variability of summer compound hot-dry events (CHDEs) in the Tibetan Plateau.
• Identify key large-scale climate drivers of CHDEs.

Study Configuration

• Spatial Scale: The study focuses on the Tibetan Plateau, with a spatial resolution of approximately 1° × 1°.
• Temporal Scale: The study analyzes interannual variability over summer months (June to August).

Methodology and Data

• Models used: Not specified in the paper.
• Data sources: Satellite data, reanalysis datasets (not specified which ones), and observational data.

Main Results

• Two leading modes of interannual variability are identified: one driven by ENSO and another by Summer North Atlantic Oscillation (SNAO).
• CHDEs over the southwestern TP increase significantly during El Niño years but decrease during La Niña years.
• The influence of ENSO on CHDEs exhibits stronger responses to Eastern Pacific (EP) El Niño and Central Pacific (CP) La Niña events.
• Land-atmosphere coupling amplifies surface temperature, leading to asymmetric CHDE responses.

Contributions

This study provides a physical basis for improved prediction and risk assessment of CHDEs over the Tibetan Plateau by identifying key large-scale climate drivers and underlying physical mechanisms.

Funding

• National Natural Science Foundation of China (Grant No. 41875044)
• National Key Research and Development Program of China (Grant No. 2017YFC1501202)

Citation

@article{Pan2026Interannual,
  author = {Pan, Rongyun and Zhou, Tianjun and Gui, Kexin and Zhang, Lixia and Zhang, Wenxia and Jiang, Jie},
  title = {Interannual Variability of Compound Hot‐Dry Events Over the Tibetan Plateau},
  journal = {Journal of Geophysical Research Atmospheres},
  year = {2026},
  doi = {10.1029/2026jd046858},
  url = {https://doi.org/10.1029/2026jd046858}
}