Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984

Abstract The 2018 boreal summer in the Western North Pacific (WNP) is highlighted by 17 tropical cyclones (TC)—the highest record during the reported reliable years of TC observations. We contribute to the existing knowledge pool on this extreme TC frequency record by showing that the simultaneous h...

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Autores principales:	Joseph Basconcillo, Eun-Jeong Cha, Il-Ju Moon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/880f85ff44d443b69764b62ca2317dbe
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spelling	oai:doaj.org-article:880f85ff44d443b69764b62ca2317dbe2021-12-02T16:14:03ZCharacterizing the highest tropical cyclone frequency in the Western North Pacific since 198410.1038/s41598-021-93824-22045-2322https://doaj.org/article/880f85ff44d443b69764b62ca2317dbe2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93824-2https://doaj.org/toc/2045-2322Abstract The 2018 boreal summer in the Western North Pacific (WNP) is highlighted by 17 tropical cyclones (TC)—the highest record during the reported reliable years of TC observations. We contribute to the existing knowledge pool on this extreme TC frequency record by showing that the simultaneous highest recorded intensity of the WNP summer monsoon prompted the eastward extension of the monsoon trough and enhancement of tropical convective activities, which are both favorable for TC development. Such changes in the WNP summer monsoon environment led to the extreme TC frequency record during the 2018 boreal summer. Meanwhile, the highest record in TC frequency and the intensity of the WNP summer monsoon are both attributed with the combined increase in the anomalous westerlies originating from the cold tropical Indian Ocean sea surface temperature (SST) anomalies drawn towards the convective heat source that is associated with the warm central Pacific SST anomalies. Our results provide additional insights in characterizing above normal tropical cyclone and summer monsoon activities in the WNP in understanding seasonal predictable horizons in the WNP, and in support of disaster risk and impact reduction.Joseph BasconcilloEun-Jeong ChaIl-Ju MoonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joseph Basconcillo Eun-Jeong Cha Il-Ju Moon Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
description	Abstract The 2018 boreal summer in the Western North Pacific (WNP) is highlighted by 17 tropical cyclones (TC)—the highest record during the reported reliable years of TC observations. We contribute to the existing knowledge pool on this extreme TC frequency record by showing that the simultaneous highest recorded intensity of the WNP summer monsoon prompted the eastward extension of the monsoon trough and enhancement of tropical convective activities, which are both favorable for TC development. Such changes in the WNP summer monsoon environment led to the extreme TC frequency record during the 2018 boreal summer. Meanwhile, the highest record in TC frequency and the intensity of the WNP summer monsoon are both attributed with the combined increase in the anomalous westerlies originating from the cold tropical Indian Ocean sea surface temperature (SST) anomalies drawn towards the convective heat source that is associated with the warm central Pacific SST anomalies. Our results provide additional insights in characterizing above normal tropical cyclone and summer monsoon activities in the WNP in understanding seasonal predictable horizons in the WNP, and in support of disaster risk and impact reduction.
format	article
author	Joseph Basconcillo Eun-Jeong Cha Il-Ju Moon
author_facet	Joseph Basconcillo Eun-Jeong Cha Il-Ju Moon
author_sort	Joseph Basconcillo
title	Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
title_short	Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
title_full	Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
title_fullStr	Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
title_full_unstemmed	Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984
title_sort	characterizing the highest tropical cyclone frequency in the western north pacific since 1984
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/880f85ff44d443b69764b62ca2317dbe
work_keys_str_mv	AT josephbasconcillo characterizingthehighesttropicalcyclonefrequencyinthewesternnorthpacificsince1984 AT eunjeongcha characterizingthehighesttropicalcyclonefrequencyinthewesternnorthpacificsince1984 AT iljumoon characterizingthehighesttropicalcyclonefrequencyinthewesternnorthpacificsince1984
_version_	1718384360711782400

Characterizing the highest tropical cyclone frequency in the Western North Pacific since 1984

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