Enhanced intensity of global tropical cyclones during the mid-Pliocene warm period

Yan, Qing; Wei, Ting; Korty, Robert L.; Kossin, James P.; Zhang, Zhongshi; Wang, Huijun

doi:10.1073/pnas.1608950113

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Enhanced intensity of global tropical cyclones during the mid-Pliocene warm period

2016
By Yan, Qing ; Wei, Ting ; Korty, Robert L. ; ...
Source: Proc Natl Acad Sci U S A. 2016 Nov 15; 113(46): 12963-12967.

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Journal Title:

Proceedings of the National Academy of Science of the United States
Personal Author:

Yan, Qing ; Wei, Ting ; Korty, Robert L. ; Kossin, James P. ; Zhang, Zhongshi ; ... More +

Yan, Qing ; Wei, Ting ; Korty, Robert L. ; Kossin, James P. ; Zhang, Zhongshi ; Wang, Huijun Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) Less -
Description:

Given the threats that tropical cyclones (TC) pose to people and infrastructure, there is significant interest in how the climatology of these storms may change with climate. The global historical record has been extensively examined, but it is short and plagued with recurring questions about its homogeneity, limiting its effectiveness at assessing how TCs vary with climate. Past warm intervals provide an opportunity to quantify TC behavior in a warmer-than-present world. Here, we use a TC-resolving (similar to 25 km) global atmospheric model to investigate TC activity during the mid-Pliocene warm period (3.264-3.025 Ma) that shares similarities with projections of future climate. Two experiments, one driven by the reconstructed sea surface temperatures (SSTs) and the other by the SSTs from an ensemble of mid-Pliocene simulations, consistently predict enhanced global-average peak TC intensity during the mid-Pliocene coupled with longer duration, increased power dissipation, and a poleward migration of the location of peak intensity. The simulations are similar to global TC changes observed during recent global warming, as well as those of many future projections, providing a window into the potential TC activity that may be expected in a warmer world. Changes to power dissipation and TC frequency, especially in the Pacific, are sensitive to the different SST patterns, which could affect the viability of the role of TCs as a factor for maintaining a reduced zonal SST gradient during the Pliocene, as recently hypothesized.
Keywords:

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Cyclones
Source:

Proc Natl Acad Sci U S A. 2016 Nov 15; 113(46): 12963-12967.
DOI:

https://doi.org/10.1073/pnas.1608950113
Pubmed Central ID:

PMC5135347
Document Type:

Journal Article
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CC BY
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Submitted
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urn:sha256:a130a513b9cba9ad8dd22ef7ddb48d47b5f2355d8770b0f89ad8abef4d0f122c
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https://repository.library.noaa.gov/view/noaa/24374/noaa_24374_DS1.pdf
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