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Intense Precipitation Events Associated with Landfalling Tropical Cyclones in Response to a Warmer Climate and Increased CO2

Author(s): Scoccimarro, Enrico; Gualdi, Silvio; Villarini, Gabriele; Vecchi, Gabriel A; Zhao, Ming; et al

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Abstract: In this work the authors investigate possible changes in the intensity of rainfall events associated with tropical cyclones (TCs) under idealized forcing scenarios, including a uniformly warmer climate, with a special focus on landfalling storms. A new set of experiments designed within the U.S. Climate Variability and Predictability (CLIVAR) Hurricane Working Group allows disentangling the relative role of changes in atmospheric carbon dioxide from that played by sea surface temperature (SST) in changing the amount of precipitation associated with TCs in a warmer world. Compared to the present-day simulation, an increase in TC precipitation was found under the scenarios involving SST increases. On the other hand, in a CO2-doubling-only scenario, the changes in TC rainfall are small and it was found that, on average, TC rainfall tends to decrease compared to the present-day climate. The results of this study highlight the contribution of landfalling TCs to the projected increase in the precipitation changes affecting the tropical coastal regions.
Publication Date: 15-Jun-2014
Citation: Scoccimarro, Enrico, Silvio Gualdi, Gabriele Villarini, Gabriel A. Vecchi, Ming Zhao, Kevin Walsh, and Antonio Navarra. "Intense precipitation events associated with landfalling tropical cyclones in response to a warmer climate and increased CO2." Journal of Climate 27, no. 12 (2014): 4642-4654. doi:10.1175/JCLI-D-14-00065.1.
DOI: doi:10.1175/JCLI-D-14-00065.1
ISSN: 0894-8755
EISSN: 1520-0442
Pages: 4642 - 4654
Type of Material: Journal Article
Journal/Proceeding Title: Journal of Climate
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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