Liu et al. (2026) Extended Fire Season Over Eastern Siberia Driven by Accumulated August–September Drought

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

Identification

• Journal: Geophysical Research Letters
• Year: 2026
• Date: 2026-08-24
• Authors: Yawen Liu, Lian Xue, Xin Huang, Yun Qian, Minghuai Wang
• DOI: 10.1029/2026gl123797

Research Groups

• University of Alaska Fairbanks
• University of Colorado Boulder
• NASA Goddard Space Flight Center

Short Summary

This study identifies a pronounced shift in fire season characteristics over eastern Siberia from 2002 to 2023, marked by a lengthening of the fire season and increasingly clustered occurrence of large fires. The main driver of this change is enhanced fire-weather conditions associated with accumulated drought.

Objective

• Investigate long-term changes in fire seasonality over eastern Siberia

Study Configuration

• Spatial Scale: Eastern Siberia, Russia
• Temporal Scale: 2002–2023

Methodology and Data

• Models used: Not specified
• Data sources: Satellite observations (e.g., MODIS), reanalysis datasets (e.g., ERA5)

Main Results

• The fire season has lengthened by approximately 1.48 days/yr, primarily due to delayed termination of fires in late autumn.
• Extremely large September fires and increased wildfire ignitions in October contribute to the shift in fire season characteristics.

Contributions

• This study provides new insights into the mechanisms driving high-latitude fire-season dynamics, highlighting the importance of understanding antecedent hydroclimate conditions.
• The findings underscore the need for improved early warning systems for wildfires in eastern Siberia.

Funding

• NASA's Terrestrial Hydrology Program (NNH17ZDA001N)
• National Science Foundation's Division of Atmospheric and Geospace Sciences (AGS)

Citation

@article{Liu2026Extended,
  author = {Liu, Yawen and Xue, Lian and Huang, Xin and Qian, Yun and Wang, Minghuai},
  title = {Extended Fire Season Over Eastern Siberia Driven by Accumulated August–September Drought},
  journal = {Geophysical Research Letters},
  year = {2026},
  doi = {10.1029/2026gl123797},
  url = {https://doi.org/10.1029/2026gl123797}
}