Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height
The maximum significant wave height ( H s m a x ) induced by a tropical cyclone (TC) can be estimated from an empirical fetch formula using the TC’s size, maximum wind speed, and translation speed, in which larger, stronger, and faster-moving TCs generally have higher the H s m a x . In the formula,...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1134579 https://www.frontiersin.org/articles/10.3389/fmars.2023.1134579/full |
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crfrontiers:10.3389/fmars.2023.1134579 2024-02-11T10:06:39+01:00 Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height Oh, Youjung Oh, Sang Myeong Chang, Pil-Hun Moon, Il-Ju National Research Foundation of Korea 2023 http://dx.doi.org/10.3389/fmars.2023.1134579 https://www.frontiersin.org/articles/10.3389/fmars.2023.1134579/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1134579 2024-01-26T09:56:17Z The maximum significant wave height ( H s m a x ) induced by a tropical cyclone (TC) can be estimated from an empirical fetch formula using the TC’s size, maximum wind speed, and translation speed, in which larger, stronger, and faster-moving TCs generally have higher the H s m a x . In the formula, the radius of maximum wind (RMW) has been widely used as the TC size parameter under the assumption that H s m a x is mainly generated by strong winds near the RMW. This study investigates whether RMW is the optimal parameter for determining TC-induced H s m a x through extensive wave model simulations for North Atlantic hurricanes from 1988–2017. The correlation analysis between the estimated H s m a x and TC size parameters revealed that the radius of the 34-kt wind speed (R34, r = 0.84–0.95) was much higher than the widely used RMW ( r = 0.33–0.58), which suggests that R34 is a more important TC size parameter for determining TC-induced H s m a x than RMW. This result can be explained by the fact that R34 showed a significantly higher correlation ( r = 0.96) than RMW ( r = 0.31) with cumulative TC wind speeds, which are closely related to H s m a x . These findings also indicate that the TC-induced H s m a x is more affected by the region containing moderately strong winds outside the TC than by the region of maximum wind speed near the RMW. Our paper provides additional insight into the mechanisms by which extreme wave heights, which cause severe damage during TC passage, occur. Article in Journal/Newspaper North Atlantic Frontiers (Publisher) Frontiers in Marine Science 10 |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Oh, Youjung Oh, Sang Myeong Chang, Pil-Hun Moon, Il-Ju Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
The maximum significant wave height ( H s m a x ) induced by a tropical cyclone (TC) can be estimated from an empirical fetch formula using the TC’s size, maximum wind speed, and translation speed, in which larger, stronger, and faster-moving TCs generally have higher the H s m a x . In the formula, the radius of maximum wind (RMW) has been widely used as the TC size parameter under the assumption that H s m a x is mainly generated by strong winds near the RMW. This study investigates whether RMW is the optimal parameter for determining TC-induced H s m a x through extensive wave model simulations for North Atlantic hurricanes from 1988–2017. The correlation analysis between the estimated H s m a x and TC size parameters revealed that the radius of the 34-kt wind speed (R34, r = 0.84–0.95) was much higher than the widely used RMW ( r = 0.33–0.58), which suggests that R34 is a more important TC size parameter for determining TC-induced H s m a x than RMW. This result can be explained by the fact that R34 showed a significantly higher correlation ( r = 0.96) than RMW ( r = 0.31) with cumulative TC wind speeds, which are closely related to H s m a x . These findings also indicate that the TC-induced H s m a x is more affected by the region containing moderately strong winds outside the TC than by the region of maximum wind speed near the RMW. Our paper provides additional insight into the mechanisms by which extreme wave heights, which cause severe damage during TC passage, occur. |
author2 |
National Research Foundation of Korea |
format |
Article in Journal/Newspaper |
author |
Oh, Youjung Oh, Sang Myeong Chang, Pil-Hun Moon, Il-Ju |
author_facet |
Oh, Youjung Oh, Sang Myeong Chang, Pil-Hun Moon, Il-Ju |
author_sort |
Oh, Youjung |
title |
Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
title_short |
Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
title_full |
Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
title_fullStr |
Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
title_full_unstemmed |
Optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
title_sort |
optimal tropical cyclone size parameter for determining storm-induced maximum significant wave height |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1134579 https://www.frontiersin.org/articles/10.3389/fmars.2023.1134579/full |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1134579 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1790604477113303040 |