Heyblom et al. (2025) Global Moisture Cycling Rate an Important Control on Regional-Mean Precipitation under Warming

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

Identification

• Journal: Journal of Climate
• Year: 2025
• Date: 2025-09-30
• Authors: Kyle Benjamin Heyblom, Adriana Bailey, Hansi Singh
• DOI: 10.1175/jcli-d-24-0727.1

Research Groups

Not specified in the abstract.

Short Summary

This study proposes an updated framework explaining regional precipitation change under climate forcing through three additive drivers, finding that the global moisture cycling rate robustly accounts for key spatial patterns like "wet-get-wetter, dry-get-drier" across various Earth system models.

Objective

• To present an updated framework for understanding regional precipitation change under climate forcing, proposing that zonal-mean precipitation adjustments are explained by changes in global evaporation, global moisture cycling rate, and atmospheric circulation.

Study Configuration

• Spatial Scale: Global to regional, focusing on zonal-mean precipitation patterns.
• Temporal Scale: Long-term climate change and warming scenarios.

Methodology and Data

• Models used: Several state-of-the-art Earth system models.
• Data sources: Not explicitly specified in the abstract, but implies model outputs.

Main Results

• Most adjustments in zonal-mean precipitation can be explained by three additive drivers: changes in global evaporation, shifts in the global moisture cycling rate, and atmospheric circulation adjustments.
• The global cycling rate of atmospheric moisture effectively explains many key features of the spatial pattern of zonal-mean precipitation change, including the "wet-get-wetter, dry-get-drier" response.
• The response of the global moisture cycling rate and its corresponding impact on moisture transport distance are robust across several state-of-the-art Earth system models and forcing scenarios.

Contributions

• Presents a novel, additive framework for understanding regional precipitation change under climate forcing.
• Identifies the global moisture cycling rate as a robust and key explanatory factor for spatial patterns of zonal-mean precipitation change.
• Provides a framework that can be used to better understand, observe, and project regional-mean precipitation changes with high certainty.

Funding

Not specified in the abstract.

Citation

@article{Heyblom2025Global,
  author = {Heyblom, Kyle Benjamin and Bailey, Adriana and Singh, Hansi},
  title = {Global Moisture Cycling Rate an Important Control on Regional-Mean Precipitation under Warming},
  journal = {Journal of Climate},
  year = {2025},
  doi = {10.1175/jcli-d-24-0727.1},
  url = {https://doi.org/10.1175/jcli-d-24-0727.1}
}