Ragno et al. (2026) The Role of Structural and Transient Compoundness in Advancing Compound Event Characterization

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

Identification

• Journal: Earth s Future
• Year: 2026
• Date: 2026-08-01
• Authors: Elisa Ragno, Faidon Diakomopoulos, Srividya Hariharan Sudha, Carlo De Michele
• DOI: 10.1029/2025ef007691

Research Groups

Not specified in the provided text.

Short Summary

The paper introduces the concepts of "structural compoundness" and "transient compoundness" to quantify the contributions of individual drivers to compound events, moving beyond a sole focus on statistical dependence.

Objective

• To develop a framework that describes hydrological and climate compound events by distinguishing between the overall generative mechanism (structural) and individual realizations (transient) of contributing physical drivers.

Study Configuration

• Spatial Scale: Not explicitly specified (applied to river confluences and general hot/dry climate events).
• Temporal Scale: Not explicitly specified.

Methodology and Data

• Models used: Conceptual framework for structural and transient compoundness.
• Data sources: Data related to river discharge at confluences and hot and dry events.

Main Results

• Defined structural compoundness as the overall contribution of each driver to the generative mechanism of a compound variable.
• Defined transient compoundness as the role of each driver in a specific individual realization of a compound variable.
• Demonstrated that both the magnitude and the statistical dependence of drivers are critical in shaping compound events.
• Showed that these metrics can distinguish between persistent (structural) and temporary (transient) risks, thereby improving risk assessment and adaptation strategies.

Contributions

• Advances the conceptualization of compound events by shifting the focus from simple statistical dependence to a dual-layered understanding of driver contributions (structural vs. transient).
• Provides a theoretical basis for improving scientific modeling and guiding targeted mitigation strategies for different types of compound risks.

Funding

Not specified in the provided text.

Citation

@article{Ragno2026Role,
  author = {Ragno, Elisa and Diakomopoulos, Faidon and Sudha, Srividya Hariharan and Michele, Carlo De},
  title = {The Role of Structural and Transient Compoundness in Advancing Compound Event Characterization},
  journal = {Earth s Future},
  year = {2026},
  doi = {10.1029/2025ef007691},
  url = {https://doi.org/10.1029/2025ef007691}
}