Implications of tropical cyclone power dissipation index
Abstract Upward trends in the power dissipation index (PDI) in the North Atlantic (NA) and western North Pacific (WNP) basins and increases in the number and proportion of intense hurricanes (categories 4 and 5) in all tropical cyclone basins have been reported in recent studies. These changes have...
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crwiley:10.1002/joc.1573 2024-06-23T07:55:10+00:00 Implications of tropical cyclone power dissipation index Wu, Liguang Wang, Bin Braun, Scott A. 2007 http://dx.doi.org/10.1002/joc.1573 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1573 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1573 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 28, issue 6, page 727-731 ISSN 0899-8418 1097-0088 journal-article 2007 crwiley https://doi.org/10.1002/joc.1573 2024-06-13T04:24:55Z Abstract Upward trends in the power dissipation index (PDI) in the North Atlantic (NA) and western North Pacific (WNP) basins and increases in the number and proportion of intense hurricanes (categories 4 and 5) in all tropical cyclone basins have been reported in recent studies. These changes have been arguably viewed as evidence of the responses of tropical cyclone intensity to the increasing tropical sea surface temperature (SST) over the past 30 years. Using the historical best‐track datasets from 1975 to 2004, how the annual frequency, lifetime and intensity of tropical cyclones contribute to the changes in the annual accumulated PDI is examined. As the SST warmed in the NA, WNP and eastern North Pacific (ENP) basins over the past 30 years, the annual accumulated PDI trended upward significantly only in the NA basin, where the decreased vertical wind shear and warming ocean surface may have allowed more storms to form and to form earlier or dissipate later, increasing the lifetime and annual frequency of tropical cyclones. The moderate increase in the annual accumulated PDI in the WNP basin was primarily due to the significant increase in the average intensity. There are no significant trends in the accumulated PDI, average intensity, average lifetime, and annual frequency in the ENP basin. Copyright © 2007 Royal Meteorological Society Article in Journal/Newspaper North Atlantic Wiley Online Library Pacific International Journal of Climatology 28 6 727 731 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Upward trends in the power dissipation index (PDI) in the North Atlantic (NA) and western North Pacific (WNP) basins and increases in the number and proportion of intense hurricanes (categories 4 and 5) in all tropical cyclone basins have been reported in recent studies. These changes have been arguably viewed as evidence of the responses of tropical cyclone intensity to the increasing tropical sea surface temperature (SST) over the past 30 years. Using the historical best‐track datasets from 1975 to 2004, how the annual frequency, lifetime and intensity of tropical cyclones contribute to the changes in the annual accumulated PDI is examined. As the SST warmed in the NA, WNP and eastern North Pacific (ENP) basins over the past 30 years, the annual accumulated PDI trended upward significantly only in the NA basin, where the decreased vertical wind shear and warming ocean surface may have allowed more storms to form and to form earlier or dissipate later, increasing the lifetime and annual frequency of tropical cyclones. The moderate increase in the annual accumulated PDI in the WNP basin was primarily due to the significant increase in the average intensity. There are no significant trends in the accumulated PDI, average intensity, average lifetime, and annual frequency in the ENP basin. Copyright © 2007 Royal Meteorological Society |
format |
Article in Journal/Newspaper |
author |
Wu, Liguang Wang, Bin Braun, Scott A. |
spellingShingle |
Wu, Liguang Wang, Bin Braun, Scott A. Implications of tropical cyclone power dissipation index |
author_facet |
Wu, Liguang Wang, Bin Braun, Scott A. |
author_sort |
Wu, Liguang |
title |
Implications of tropical cyclone power dissipation index |
title_short |
Implications of tropical cyclone power dissipation index |
title_full |
Implications of tropical cyclone power dissipation index |
title_fullStr |
Implications of tropical cyclone power dissipation index |
title_full_unstemmed |
Implications of tropical cyclone power dissipation index |
title_sort |
implications of tropical cyclone power dissipation index |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1002/joc.1573 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1573 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1573 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
International Journal of Climatology volume 28, issue 6, page 727-731 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.1573 |
container_title |
International Journal of Climatology |
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28 |
container_issue |
6 |
container_start_page |
727 |
op_container_end_page |
731 |
_version_ |
1802647631466332160 |