Seasonal Shift of Storm Surges in the Yangtze Estuary, China

This study explores storm floods in the Yangtze Estuary to investigate how extreme sea levels and storm surges change in the context of global warming. Previous studies focused on the long-term variations in amplitude or frequency of storm surges, with limited research conducted on the timing of ext...

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Main Authors: Chengtuan Yin, Weisheng Zhang, Mengjie Xiong, Jinhua Wang, Xin Xu, Jinshan Zhang, Junning Pan, Jinlan Guo
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/12/2/277
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author Chengtuan Yin
Weisheng Zhang
Mengjie Xiong
Jinhua Wang
Xin Xu
Jinshan Zhang
Junning Pan
Jinlan Guo
author_facet Chengtuan Yin
Weisheng Zhang
Mengjie Xiong
Jinhua Wang
Xin Xu
Jinshan Zhang
Junning Pan
Jinlan Guo
author_sort Chengtuan Yin
collection DOAJ
description This study explores storm floods in the Yangtze Estuary to investigate how extreme sea levels and storm surges change in the context of global warming. Previous studies focused on the long-term variations in amplitude or frequency of storm surges, with limited research conducted on the timing of extreme storm surge events. Based on the methods of non-stationary extreme value theory, we explored the last 33-year tidal levels at Xuliujing Station and found that the annual extreme water level has exhibited a slight downward trend, which is directly attributed to the decrease in mean sea level resulting from reduced upstream river flow. The storm surge season of the Yangtze Estuary experienced a significant lag in the period 2005–2018, which is not restricted to the Yangtze Estuary but is rather a large-scale climate characteristic of a broad oceanic region. The reason for this shift is the sustained increase in the intensity of the western Pacific subtropical high in the last 15 years, leading to the appearance of low-pressure channels in the East China Sea in September and October and thus causing more typhoons to enter the East China Sea during the later period of the storm surge season.
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spelling doaj.art-b23febbddd9c4cfe9c742d393558aee22024-02-23T15:23:11ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-02-0112227710.3390/jmse12020277Seasonal Shift of Storm Surges in the Yangtze Estuary, ChinaChengtuan Yin0Weisheng Zhang1Mengjie Xiong2Jinhua Wang3Xin Xu4Jinshan Zhang5Junning Pan6Jinlan Guo7The National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaHydrological and Water Resources Geological Bureau of Yangtze Estuary, Shanghai 200136, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaThe National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaMacao Environmental Research Institute, Macau University of Science and Technology, Macau 999078, ChinaThis study explores storm floods in the Yangtze Estuary to investigate how extreme sea levels and storm surges change in the context of global warming. Previous studies focused on the long-term variations in amplitude or frequency of storm surges, with limited research conducted on the timing of extreme storm surge events. Based on the methods of non-stationary extreme value theory, we explored the last 33-year tidal levels at Xuliujing Station and found that the annual extreme water level has exhibited a slight downward trend, which is directly attributed to the decrease in mean sea level resulting from reduced upstream river flow. The storm surge season of the Yangtze Estuary experienced a significant lag in the period 2005–2018, which is not restricted to the Yangtze Estuary but is rather a large-scale climate characteristic of a broad oceanic region. The reason for this shift is the sustained increase in the intensity of the western Pacific subtropical high in the last 15 years, leading to the appearance of low-pressure channels in the East China Sea in September and October and thus causing more typhoons to enter the East China Sea during the later period of the storm surge season.https://www.mdpi.com/2077-1312/12/2/277storm surgesurge season shiftextreme value theorysubtropical highthe Yangtze Estuary
spellingShingle Chengtuan Yin
Weisheng Zhang
Mengjie Xiong
Jinhua Wang
Xin Xu
Jinshan Zhang
Junning Pan
Jinlan Guo
Seasonal Shift of Storm Surges in the Yangtze Estuary, China
Journal of Marine Science and Engineering
storm surge
surge season shift
extreme value theory
subtropical high
the Yangtze Estuary
title Seasonal Shift of Storm Surges in the Yangtze Estuary, China
title_full Seasonal Shift of Storm Surges in the Yangtze Estuary, China
title_fullStr Seasonal Shift of Storm Surges in the Yangtze Estuary, China
title_full_unstemmed Seasonal Shift of Storm Surges in the Yangtze Estuary, China
title_short Seasonal Shift of Storm Surges in the Yangtze Estuary, China
title_sort seasonal shift of storm surges in the yangtze estuary china
topic storm surge
surge season shift
extreme value theory
subtropical high
the Yangtze Estuary
url https://www.mdpi.com/2077-1312/12/2/277
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