Qi et al. (2025) Global Increase of Tropical Cyclone Precipitation Rate Toward Coasts

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

Identification

• Journal: Geophysical Research Letters
• Year: 2025
• Date: 2025-09-10
• Authors: Weiqing Qi, Bin Yong, Elizabeth A. Ritchie, J. Scott Tyo, Ralf Toumi
• DOI: 10.1029/2025gl115500

Research Groups

Not specified in the abstract.

Short Summary

This study investigates the global coastward trends of tropical cyclone (TC)-induced precipitation changes over the past four decades, revealing a statistically significant landward migration of TC lifetime maximum precipitation intensities and faster growth in coastal areas linked to a warming-humidifying environment.

Objective

• To clarify whether coastal exposure to tropical cyclone (TC)-induced precipitation has a detectable response to global warming and humidification, by investigating the coastward trends of global TC-induced precipitation changes.

Study Configuration

• Spatial Scale: Global, with a focus on coastal regions.
• Temporal Scale: Past four decades (approximately 40 years).

Methodology and Data

• Models used: Not specified in the abstract.
• Data sources: Multi-source data sets.

Main Results

• Tropical cyclone (TC) lifetime maximum precipitation intensities show a statistically significant landward migration of approximately 30 km per decade.
• Precipitation intensities of TCs exhibit faster growth in coastal areas.
• There is a concurrent rapid expansion of the land coverage of TC-induced precipitation.
• A consistent pattern of change is demonstrated between intensifying TC-induced precipitation and the warming-humidifying ambient environment, with higher significance observed in coastal areas.

Contributions

• Provides quantitative evidence of a statistically significant landward migration and intensified growth of TC-induced precipitation in coastal areas over the past four decades.
• Suggests that the spatial heterogeneity in global climate change, particularly warming and humidification, contributes to the modulation of coastal TC-induced precipitation.

Funding

Not specified in the abstract.

Citation

@article{Qi2025Global,
  author = {Qi, Weiqing and Yong, Bin and Ritchie, Elizabeth A. and Tyo, J. Scott and Toumi, Ralf},
  title = {Global Increase of Tropical Cyclone Precipitation Rate Toward Coasts},
  journal = {Geophysical Research Letters},
  year = {2025},
  doi = {10.1029/2025gl115500},
  url = {https://doi.org/10.1029/2025gl115500}
}