Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea

In this study, we analysed the spatiotemporal characteristics of precipitation in Korea in connection with weakening of tropical cyclones (TCs) around the Korean Peninsula (32°–36° N, 122°–132° E) over the past 30 years (1979–2015). Weakened TCs were classified into two categories: TCs weakened to e...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Jae-Won Choi
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	precipitation korea tropical cyclone extratropical cyclone tropical depression Oceanography GC1-1581 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/c5571c7181fc4be48c3bc0d334901445
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c5571c7181fc4be48c3bc0d334901445
record_format	dspace
spelling	oai:doaj.org-article:c5571c7181fc4be48c3bc0d3349014452021-12-01T14:40:58ZSpatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea1600-087010.1080/16000870.2021.1902691https://doaj.org/article/c5571c7181fc4be48c3bc0d3349014452021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/16000870.2021.1902691https://doaj.org/toc/1600-0870In this study, we analysed the spatiotemporal characteristics of precipitation in Korea in connection with weakening of tropical cyclones (TCs) around the Korean Peninsula (32°–36° N, 122°–132° E) over the past 30 years (1979–2015). Weakened TCs were classified into two categories: TCs weakened to extratropical cyclones (WEC) and TCs weakened to tropical depressions (WTD). In WEC, precipitation was evenly distributed over all of the Korean Peninsula, with the greatest precipitation recorded on the southern coast. In WTD, the amount of precipitation was the greatest on the southern coast, while low precipitation was recorded in the central and inland areas of Korea. In Region 1 (Central Province, Jeollabuk-do, and the inland region of Gyeongsangbuk-do), greater precipitation was observed in WEC than in WTD. In Region 2 (Jeollanam-do, Gyeongsangnam-do, Southeast Gyeongsangbuk-do, and Jeju-do), little difference in precipitation was found between WEC and WTD. In WEC, potential vorticity developed in the upper-level troposphere with TCs approaching Korea along with a thermal trough in the lower-level troposphere to the northwest of the TCs. Meanwhile, an upper-level troposphere jet and a strong upper-level troposphere divergence region were observed to the northeast of the TCs. It was assumed that these meteorological factors had induced baroclinic disturbance and nondiabatic process, creating a wide precipitation area around the TCs. In contrast, in WTD, none of the intense potential vorticity, thermal trough, and upper-level troposphere jet was observed around the TCs. Consequently, only a narrow precipitation area was created around the TCs. The upper-level troposphere divergence region was relatively small, and no intense precipitation area was formed around the TCs.Jae-Won ChoiTaylor & Francis Grouparticleprecipitationkoreatropical cycloneextratropical cyclonetropical depressionOceanographyGC1-1581Meteorology. ClimatologyQC851-999ENTellus: Series A, Dynamic Meteorology and Oceanography, Vol 73, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	precipitation korea tropical cyclone extratropical cyclone tropical depression Oceanography GC1-1581 Meteorology. Climatology QC851-999
spellingShingle	precipitation korea tropical cyclone extratropical cyclone tropical depression Oceanography GC1-1581 Meteorology. Climatology QC851-999 Jae-Won Choi Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
description	In this study, we analysed the spatiotemporal characteristics of precipitation in Korea in connection with weakening of tropical cyclones (TCs) around the Korean Peninsula (32°–36° N, 122°–132° E) over the past 30 years (1979–2015). Weakened TCs were classified into two categories: TCs weakened to extratropical cyclones (WEC) and TCs weakened to tropical depressions (WTD). In WEC, precipitation was evenly distributed over all of the Korean Peninsula, with the greatest precipitation recorded on the southern coast. In WTD, the amount of precipitation was the greatest on the southern coast, while low precipitation was recorded in the central and inland areas of Korea. In Region 1 (Central Province, Jeollabuk-do, and the inland region of Gyeongsangbuk-do), greater precipitation was observed in WEC than in WTD. In Region 2 (Jeollanam-do, Gyeongsangnam-do, Southeast Gyeongsangbuk-do, and Jeju-do), little difference in precipitation was found between WEC and WTD. In WEC, potential vorticity developed in the upper-level troposphere with TCs approaching Korea along with a thermal trough in the lower-level troposphere to the northwest of the TCs. Meanwhile, an upper-level troposphere jet and a strong upper-level troposphere divergence region were observed to the northeast of the TCs. It was assumed that these meteorological factors had induced baroclinic disturbance and nondiabatic process, creating a wide precipitation area around the TCs. In contrast, in WTD, none of the intense potential vorticity, thermal trough, and upper-level troposphere jet was observed around the TCs. Consequently, only a narrow precipitation area was created around the TCs. The upper-level troposphere divergence region was relatively small, and no intense precipitation area was formed around the TCs.
format	article
author	Jae-Won Choi
author_facet	Jae-Won Choi
author_sort	Jae-Won Choi
title	Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
title_short	Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
title_full	Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
title_fullStr	Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
title_full_unstemmed	Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea
title_sort	spatiotemporal distribution of precipitation related to weakening of tropical cyclones in korea
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/c5571c7181fc4be48c3bc0d334901445
work_keys_str_mv	AT jaewonchoi spatiotemporaldistributionofprecipitationrelatedtoweakeningoftropicalcyclonesinkorea
_version_	1718405019591507968

Spatiotemporal distribution of precipitation related to weakening of tropical cyclones in Korea

Ejemplares similares