Published November 8, 2024
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Heavy precipitation and strong winds in hurricane Helene mostly strengthened by human-driven climate change
Authors/Creators
- 1. CNRS Délégation Ile-de-France Sud
- 2. Centro Euro-Mediterraneo sui Cambiamenti Climatici
- 3. CNRS
- 4. Istituto di Astrofisica e Planetologia Spaziali
Description
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Cyclones similar to hurricane Helene are up to 17 mm/day (up to 20%) wetter over the South East of the United States and locally up to 5 km/h (up to 7%) windier in Florida's Gulf in the present than they have been in the past.
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Hurricane Helene was a largely unique event.
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Natural climate variability likely played a role in driving the pressure pattern and the associated increase in precipitation and wind-speed linked to Hurricane Helene, but human-driven climate change has also contributed.
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ClimaMeter_20240927_HurricaneHelene.pdf
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