Li et al. (2025) Assessment of compound hot-dry events in lakes across global drylands

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

Identification

• Journal: Environmental Research Letters
• Year: 2025
• Date: 2025-12-29
• Authors: Yulu Li, Gang Zhao, Qiuhong Tang, R. Iestyn Woolway
• DOI: 10.1088/1748-9326/ae3193

Research Groups

[Not specified in the abstract.]

Short Summary

This study analyzed the frequency, dynamics, and drivers of hot, dry, and compound hot-dry events in 2,338 global dryland lakes from 1985 to 2020, revealing a significant increase in compound events in many lakes, predominantly driven by dry event frequency.

Objective

• To identify and analyze the frequency, long-term dynamics, and driving factors of hot events, dry events, and compound hot-dry events in 2,338 lakes across global drylands.

Study Configuration

• Spatial Scale: 2,338 lakes across global drylands.
• Temporal Scale: 1985 to 2020 (36 years), with events defined on a monthly basis.

Methodology and Data

• Models used: Model-derived lake surface water temperature (specific model not named).
• Data sources: Satellite-derived surface area datasets; Model-derived lake surface water temperature.

Main Results

• The occurrence of compound hot-dry events significantly increased in 520 lakes, while 240 lakes showed a significant decrease.
• Hot events individually increased in 1,007 lakes, and dry events individually increased in 767 lakes.
• In most lakes, the temporal changes in compound hot-dry events are primarily driven by changes in dry event frequency, rather than hot events or their co-occurrence.

Contributions

• Provides a comprehensive analysis of the frequency, long-term dynamics, and driving factors of compound hot-dry events across a large dataset of global dryland lakes.
• Quantifies the increasing compound stress on dryland lake systems due to these events.
• Identifies the primary driver (dry event frequency) behind changes in compound hot-dry events, informing targeted adaptation and resilience strategies.

Funding

[Not specified in the abstract.]

Citation

@article{Li2025Assessment,
  author = {Li, Yulu and Zhao, Gang and Tang, Qiuhong and Woolway, R. Iestyn},
  title = {Assessment of compound hot-dry events in lakes across global drylands},
  journal = {Environmental Research Letters},
  year = {2025},
  doi = {10.1088/1748-9326/ae3193},
  url = {https://doi.org/10.1088/1748-9326/ae3193}
}