Skip to main content

Projected Increases in North Atlantic Tropical Cyclone Intensity from CMIP5 Models

Author(s): Villarini, Gabriele; Vecchi, Gabriel A

To refer to this page use:
Abstract: Tropical cyclones—particularly intense ones—are a hazard to life and property, so an assessment of the changes in North Atlantic tropical cyclone intensity has important socioeconomic implications. In this study, the authors focus on the seasonally integrated power dissipation index (PDI) as a metric to project changes in tropical cyclone intensity. Based on a recently developed statistical model, this study examines projections in North Atlantic PDI using output from 17 state-of-the-art global climate models and three radiative forcing scenarios. Overall, the authors find that North Atlantic PDI is projected to increase with respect to the 1986–2005 period across all scenarios. The difference between the PDI projections and those of the number of North Atlantic tropical cyclones, which are not projected to increase significantly, indicates an intensification of North Atlantic tropical cyclones in response to both greenhouse gas (GHG) increases and aerosol changes over the current century. At the end of the twenty-first century, the magnitude of these increases shows a positive dependence on projected GHG forcing. The projected intensification is significantly enhanced by non-GHG (primarily aerosol) forcing in the first half of the twenty-first century.
Publication Date: 15-May-2013
Citation: Villarini, Gabriele, and Gabriel A. Vecchi. "Projected increases in North Atlantic tropical cyclone intensity from CMIP5 models." Journal of Climate 26, no. 10 (2013): 3231-3240. doi:10.1175/JCLI-D-12-00441.1.
DOI: doi:10.1175/JCLI-D-12-00441.1
ISSN: 0894-8755
EISSN: 1520-0442
Pages: 3231 - 3240
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.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.