Detecting the impact of climate change on tropical cyclones in Southern China

It is well known that tropical cyclones (TCs) making landfall in Southern China (SC) account for more than half of all TCs making landfall in China. Therefore, it is important to have an in-depth understanding of the activities of TCs in SC under climate warming. Our results show that there have bee...

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Main Authors: Shifei Tu, Yifan Zhang, Mei Liang, Deping Wu, Jianjun Xu
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/ad376c
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author Shifei Tu
Yifan Zhang
Mei Liang
Deping Wu
Jianjun Xu
author_facet Shifei Tu
Yifan Zhang
Mei Liang
Deping Wu
Jianjun Xu
author_sort Shifei Tu
collection DOAJ
description It is well known that tropical cyclones (TCs) making landfall in Southern China (SC) account for more than half of all TCs making landfall in China. Therefore, it is important to have an in-depth understanding of the activities of TCs in SC under climate warming. Our results show that there have been no significant changes in the frequency and duration of these TCs, but their intensities have unexpectedly decreased by ∼20% since 1980, which is inconsistent with the previous understanding that climate change increases TC intensity. The results consistently show a significant decrease in the different TC intensity percentiles, which is related to the intensity distribution that shows a significant decrease in the proportion of tropical storms and a significant increase in the proportion of tropical depressions, as well as a slight decrease in the proportion of category 1–2. Because of the locations of those TCs activity show a clear shoreward migration tendency, indicating that land friction can suppress TC intensification, so that TC intensity has weakened. In addition, results also suggest that TC development is strongly suppressed and is mainly related to the enhancement of atmospheric stability, vertical wind shear and subtropical high under global warming. These results are quite different from the previous understanding of the changes in TC intensity under global warming. Such knowledge can help us better understand the relationship between climate change and the impact of TC activity at the regional scale.
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spelling doaj.art-594e3ed913124884a72d2e3e67f5ee992024-04-09T08:20:27ZengIOP PublishingEnvironmental Research Letters1748-93262024-01-0119404406710.1088/1748-9326/ad376cDetecting the impact of climate change on tropical cyclones in Southern ChinaShifei Tu0https://orcid.org/0000-0003-3720-6259Yifan Zhang1Mei Liang2Deping Wu3Jianjun Xu4Shenzhen Institute of Guangdong Ocean University , Shenzhen 518120, People’s Republic of China; South China Sea Institute of Marine Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of China; College of Ocean and Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of ChinaSouth China Sea Institute of Marine Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of China; College of Ocean and Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of ChinaSouth China Sea Institute of Marine Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of China; College of Ocean and Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of ChinaZhanjiang Meteorological Bureau , Zhanjiang 524005, People’s Republic of ChinaShenzhen Institute of Guangdong Ocean University , Shenzhen 518120, People’s Republic of China; South China Sea Institute of Marine Meteorology, Guangdong Ocean University , Zhanjiang 524088, People’s Republic of ChinaIt is well known that tropical cyclones (TCs) making landfall in Southern China (SC) account for more than half of all TCs making landfall in China. Therefore, it is important to have an in-depth understanding of the activities of TCs in SC under climate warming. Our results show that there have been no significant changes in the frequency and duration of these TCs, but their intensities have unexpectedly decreased by ∼20% since 1980, which is inconsistent with the previous understanding that climate change increases TC intensity. The results consistently show a significant decrease in the different TC intensity percentiles, which is related to the intensity distribution that shows a significant decrease in the proportion of tropical storms and a significant increase in the proportion of tropical depressions, as well as a slight decrease in the proportion of category 1–2. Because of the locations of those TCs activity show a clear shoreward migration tendency, indicating that land friction can suppress TC intensification, so that TC intensity has weakened. In addition, results also suggest that TC development is strongly suppressed and is mainly related to the enhancement of atmospheric stability, vertical wind shear and subtropical high under global warming. These results are quite different from the previous understanding of the changes in TC intensity under global warming. Such knowledge can help us better understand the relationship between climate change and the impact of TC activity at the regional scale.https://doi.org/10.1088/1748-9326/ad376ctropical cyclone intensityclimate changeSouthern Chinashoreward migration
spellingShingle Shifei Tu
Yifan Zhang
Mei Liang
Deping Wu
Jianjun Xu
Detecting the impact of climate change on tropical cyclones in Southern China
Environmental Research Letters
tropical cyclone intensity
climate change
Southern China
shoreward migration
title Detecting the impact of climate change on tropical cyclones in Southern China
title_full Detecting the impact of climate change on tropical cyclones in Southern China
title_fullStr Detecting the impact of climate change on tropical cyclones in Southern China
title_full_unstemmed Detecting the impact of climate change on tropical cyclones in Southern China
title_short Detecting the impact of climate change on tropical cyclones in Southern China
title_sort detecting the impact of climate change on tropical cyclones in southern china
topic tropical cyclone intensity
climate change
Southern China
shoreward migration
url https://doi.org/10.1088/1748-9326/ad376c
work_keys_str_mv AT shifeitu detectingtheimpactofclimatechangeontropicalcyclonesinsouthernchina
AT yifanzhang detectingtheimpactofclimatechangeontropicalcyclonesinsouthernchina
AT meiliang detectingtheimpactofclimatechangeontropicalcyclonesinsouthernchina
AT depingwu detectingtheimpactofclimatechangeontropicalcyclonesinsouthernchina
AT jianjunxu detectingtheimpactofclimatechangeontropicalcyclonesinsouthernchina