Published November 14, 2024 | Version v1
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Cyclone Jasper mostly affected by human-driven climate change

  • 1. Uppsala Universitet
  • 2. CNRS Délégation Ile-de-France Sud

Description

  • Low pressure systems similar to that producing the December 2023 cyclone Jasper are locally 0-2 °C warmer and 0-7mm/day drier in the present than they have been in the past.

  • The December 2023 cyclone Jasper was a largely unique event.

  • Natural climate variability likely played a role in driving the pressure pattern and the associated decrease in precipitation linked to cyclone Jasper, but human-driven climate change may have also contributed.

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ClimaMeter_20231218_CycloneJasper.pdf

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