Recent increase in the occurrences of Christmas typhoons in the Western North Pacific

Abstract To imply the gravity of their impact on Christmas celebration, the term Christmas typhoon recently became more popular to refer to tropical cyclones (TC) in the Western North Pacific (WNP) during its less active season. The past 9 years from 2012 to 2020 saw more than 70% (210%) increases i...

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Autores principales:	Joseph Basconcillo, Il-Ju Moon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2103156ef497487e88e7275c91a8ea11
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spelling	oai:doaj.org-article:2103156ef497487e88e7275c91a8ea112021-12-02T14:23:13ZRecent increase in the occurrences of Christmas typhoons in the Western North Pacific10.1038/s41598-021-86814-x2045-2322https://doaj.org/article/2103156ef497487e88e7275c91a8ea112021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86814-xhttps://doaj.org/toc/2045-2322Abstract To imply the gravity of their impact on Christmas celebration, the term Christmas typhoon recently became more popular to refer to tropical cyclones (TC) in the Western North Pacific (WNP) during its less active season. The past 9 years from 2012 to 2020 saw more than 70% (210%) increases in Christmas typhoon occurrences in the WNP (Philippines). Furthermore, Mindanao Island, which is located in southern Philippines, has experienced an unprecedented 480% increase in TC passage in the same period. Here we show that the detected recent increase in Christmas typhoons are mainly associated with the shift of the Pacific Decadal Oscillation to its positive phase in early 2010s, which led to favorable changes in the large-scale environment for TC development such as higher relative vorticity, anomalous low-level westerlies, warmer sea surface temperatures in the central Pacific, and extended WNP subtropical high. We also found that the poleward shift of the Intertropical Convergence Zone and possibly, the recent recovery of the Siberian High contributed to such increased occurrences. As opposed to the more active TC season, there is a wide research gap during the less active season. We aim to fill in this knowledge gap to gain better insights on TC risk reduction.Joseph BasconcilloIl-Ju MoonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joseph Basconcillo Il-Ju Moon Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
description	Abstract To imply the gravity of their impact on Christmas celebration, the term Christmas typhoon recently became more popular to refer to tropical cyclones (TC) in the Western North Pacific (WNP) during its less active season. The past 9 years from 2012 to 2020 saw more than 70% (210%) increases in Christmas typhoon occurrences in the WNP (Philippines). Furthermore, Mindanao Island, which is located in southern Philippines, has experienced an unprecedented 480% increase in TC passage in the same period. Here we show that the detected recent increase in Christmas typhoons are mainly associated with the shift of the Pacific Decadal Oscillation to its positive phase in early 2010s, which led to favorable changes in the large-scale environment for TC development such as higher relative vorticity, anomalous low-level westerlies, warmer sea surface temperatures in the central Pacific, and extended WNP subtropical high. We also found that the poleward shift of the Intertropical Convergence Zone and possibly, the recent recovery of the Siberian High contributed to such increased occurrences. As opposed to the more active TC season, there is a wide research gap during the less active season. We aim to fill in this knowledge gap to gain better insights on TC risk reduction.
format	article
author	Joseph Basconcillo Il-Ju Moon
author_facet	Joseph Basconcillo Il-Ju Moon
author_sort	Joseph Basconcillo
title	Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
title_short	Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
title_full	Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
title_fullStr	Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
title_full_unstemmed	Recent increase in the occurrences of Christmas typhoons in the Western North Pacific
title_sort	recent increase in the occurrences of christmas typhoons in the western north pacific
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2103156ef497487e88e7275c91a8ea11
work_keys_str_mv	AT josephbasconcillo recentincreaseintheoccurrencesofchristmastyphoonsinthewesternnorthpacific AT iljumoon recentincreaseintheoccurrencesofchristmastyphoonsinthewesternnorthpacific
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Recent increase in the occurrences of Christmas typhoons in the Western North Pacific

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