Science

Warmer coastal waters drive heavy cyclone rainfall farther inland, raising flood risks

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 14/10/2026, 17:40:23 UTC.

Briefings

A research team at The Hong Kong Polytechnic University (PolyU) published in Nature Communications found that tropical cyclone rainfall areas extend inland at an average rate of 3.8 km per decade along Northern Hemisphere coasts. This trend, driven by rising nearshore sea surface temperatures, significantly increases flood risks for inland regions. The study highlights a spatial shift in disaster exposure patterns over time.

Key points

• The research indicates that tropical cyclone rainfall areas extend inland at an average rate of approximately 3.8 kilometers per decade along Northern Hemisphere coasts.
• This shift is driven by rising nearshore sea surface temperatures, which increases disaster risks for inland regions.

Context and limitations

The findings are based on a single research team's study published in Nature Communications; data coverage is limited to the Northern Hemisphere, and the study does not account for regional variations in coastal geography or historical climate data.

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