Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China

Study region: Xiangjiang basin, a humid subtropical inland region of central-south China. Study focus: Tropical Cyclones (TCs) usually cause extreme precipitation events (EPEs) and flooding in both coastal and inland areas, resulting in severe economic losses. However, TC impacts in inland regions w...

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Main Authors: Huishan Chen, Longfei Han, Yuying Tang, Juan Chen, Chaogui Lei, Xichun Li
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Journal of Hydrology: Regional Studies
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214581824004452
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author Huishan Chen
Longfei Han
Yuying Tang
Juan Chen
Chaogui Lei
Xichun Li
author_facet Huishan Chen
Longfei Han
Yuying Tang
Juan Chen
Chaogui Lei
Xichun Li
author_sort Huishan Chen
collection DOAJ
description Study region: Xiangjiang basin, a humid subtropical inland region of central-south China. Study focus: Tropical Cyclones (TCs) usually cause extreme precipitation events (EPEs) and flooding in both coastal and inland areas, resulting in severe economic losses. However, TC impacts in inland regions were seldom investigated. This study provided a climatological view of TCs, TC-induced EPEs and flooding in the Xiangjiang basin over the past nearly 70 years, and examined their relationships with ENSO using data from 127 meteorological stations, 22 hydrological stations, and TC tracks. New hydrological insights for the region: Xiangjiang basin averaged five TC visits annually, primarily between July and September, when the majority of EPEs and flooding associated with TCs occurred. Despite the relatively low frequency (less than 30 %) of TC-induced EPEs and flooding compared to coastal regions, their magnitudes were comparable to or even exceeded those in coastal regions. These influences were modulated by ENSO. In neutral years, the frequency and magnitude of TC-induced EPEs were greatest due to higher TC track density and frequency. Also, TC tracks shifted westward, increasing the likelihood of extreme TC flooding in neutral years. The southeast of the basin faced the highest risk of TC-related disasters, especially in neutral years. This paper highlights the need to strengthen monitoring and prevention for TC-induced disasters in inland regions.
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language English
publishDate 2025-02-01
publisher Elsevier
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series Journal of Hydrology: Regional Studies
spelling doaj-art-0baefec86b554654a22c476c824015c72025-01-22T05:42:00ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102096Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of ChinaHuishan Chen0Longfei Han1Yuying Tang2Juan Chen3Chaogui Lei4Xichun Li5School of Geographical Sciences, Hunan Normal University, Changsha 410081, ChinaSchool of Geographical Sciences, Hunan Normal University, Changsha 410081, China; Corresponding author.School of Geographical Sciences, Hunan Normal University, Changsha 410081, ChinaCollege of Hydrology and Water Resources, Hohai University, Nanjing 210098, ChinaSchool of Geography and Tourism, Chongqing Normal University, Chongqing 401331, ChinaHunan Hydro & Power Design Institute, Changsha 410007, ChinaStudy region: Xiangjiang basin, a humid subtropical inland region of central-south China. Study focus: Tropical Cyclones (TCs) usually cause extreme precipitation events (EPEs) and flooding in both coastal and inland areas, resulting in severe economic losses. However, TC impacts in inland regions were seldom investigated. This study provided a climatological view of TCs, TC-induced EPEs and flooding in the Xiangjiang basin over the past nearly 70 years, and examined their relationships with ENSO using data from 127 meteorological stations, 22 hydrological stations, and TC tracks. New hydrological insights for the region: Xiangjiang basin averaged five TC visits annually, primarily between July and September, when the majority of EPEs and flooding associated with TCs occurred. Despite the relatively low frequency (less than 30 %) of TC-induced EPEs and flooding compared to coastal regions, their magnitudes were comparable to or even exceeded those in coastal regions. These influences were modulated by ENSO. In neutral years, the frequency and magnitude of TC-induced EPEs were greatest due to higher TC track density and frequency. Also, TC tracks shifted westward, increasing the likelihood of extreme TC flooding in neutral years. The southeast of the basin faced the highest risk of TC-related disasters, especially in neutral years. This paper highlights the need to strengthen monitoring and prevention for TC-induced disasters in inland regions.http://www.sciencedirect.com/science/article/pii/S2214581824004452Tropical cyclonesExtreme precipitationFloodingENSO
spellingShingle Huishan Chen
Longfei Han
Yuying Tang
Juan Chen
Chaogui Lei
Xichun Li
Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
Journal of Hydrology: Regional Studies
Tropical cyclones
Extreme precipitation
Flooding
ENSO
title Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
title_full Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
title_fullStr Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
title_full_unstemmed Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
title_short Impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of China
title_sort impacts of tropical cyclones on extreme precipitation and flooding in a humid subtropical inland basin of china
topic Tropical cyclones
Extreme precipitation
Flooding
ENSO
url http://www.sciencedirect.com/science/article/pii/S2214581824004452
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